choose the expression that best completes this sentence: the function f(x) = ________________ has a local minimum at the point (8,0). a) x−8 b) (x−8)−1 c) x2−16x 64 d) −|x−8| e) (x−8)13

Answers

Answer 1

The correct answer to this question is option C: f(x) =[tex]x^2 - 16x + 64[/tex]. This is because the expression [tex]x^2 - 16x + 64[/tex] can be factored as[tex](x - 8)^2,[/tex] which represents a parabola that opens upwards and has its vertex at the point (8, 0).

The fact that the vertex is a minimum point can be seen by observing that the coefficient of [tex]x^2[/tex] is positive, which means that the parabola opens upwards. In addition, the squared term in the expression [tex](x - 8)^2[/tex]ensures that the function is symmetric around x = 8, which means that the vertex is the lowest point on the curve within some neighborhood of x = 8. Therefore, the function f(x) = [tex]x^2 - 16x + 64[/tex]has a local minimum at the point (8,0).

Learn more about expression

https://brainly.com/question/14083225

#SPJ4


Related Questions

find the volume of the solid region f. the region f is the region in the first octant that is bounded by the two parabolic cylinders z = 16 − y2 and z = 16 − x2.

Answers

The required volume of the solid region f is :

64/3 cubic units.

To find the volume of the solid region f bounded by the two parabolic cylinders z = 16 − y2 and z = 16 − x2 in the first octant, we need to set up a triple integral over the region f.

We can integrate over the x, y, and z coordinates, with the limits of integration as follows:

0 ≤ x ≤ 4
0 ≤ y ≤ 4
16 − y2 ≤ z ≤ 16 − x2

The limits for x and y are simply the boundaries of the first octant. The limits for z are given by the two equations of the parabolic cylinders, with the lower limit being the curve z = 16 − y2 and the upper limit being the curve z = 16 − x2.

Therefore, the volume of the solid region f is given by:

∫∫∫ f dV = ∫∫∫ 1 dV

Where f = 1, since we are integrating over a solid region with a constant density of 1.

Using the limits of integration above, we can evaluate the triple integral as follows:

∫0^4 ∫0^4 ∫16−y^2^16−x^2 1 dz dy dx

= ∫0^4 ∫0^4 [16 − y2 − (16 − x2)] dy dx

= ∫0^4 ∫0^4 (x2 − y2) dy dx

= ∫0^4 [(x2y − y3/3)]0^4 dx

= ∫0^4 (4x2) dx

= [4x3/3]0^4

= 64/3 cubic units.

Therefore, the volume of the solid region f is 64/3 cubic units.

To learn more about volume visit : https://brainly.com/question/1972490

#SPJ11

Evaluate the following expressions. Your answer must be an exact angle in radians and in the interval pi/6 [0, pi]. Example: Enter pi/6 for pi/6. cos^-1 (-Squareroot 3/2) cos^-1 (0) cos^-1 (Squareroot 2/2)

Answers

The exact angles in radians and in the interval π/6 [0, π] are:

[tex]cos^{-1}[/tex](-√(3)/2) = 7π/6

[tex]cos^{-1}[/tex](0) = π/2

[tex]cos^{-1}[/tex](√(2)/2) = π/4

What is the cosine inverse function?

The cosine inverse function, also known as the arccosine function, is the inverse function of the cosine function. It takes a value between -1 and 1 and returns the corresponding angle between 0 and π (or 0 and 180 degrees) whose cosine is that value. The notation for the cosine inverse function is cos⁻¹ or arccos.

For example, cos⁻¹(1/2) = π/3, since the cosine of π/3 is 1/2.

According to the given information

[tex]cos^{-1}[/tex](-√(3)/2) is in the second quadrant where cosine is negative. Using the unit circle, we can see that this angle is π/6 + pi = 7π/6.

[tex]cos^{-1}[/tex](0) is in the first and second quadrants where cosine is 0. This means the possible angles are π/2 and 3π/2. However, since we are only considering angles in the interval pi/6 [0, pi], the answer is π/2.

[tex]cos^{-1}[/tex](√(2)/2) is in the first quadrant where cosine is positive. Using the unit circle, we can see that this angle is π/4.

Therefore, the exact angles in radians and in the interval π/6 [0, pi] are:

[tex]cos^{-1}[/tex](-√(3)/2) = 7π/6

[tex]cos^{-1}[/tex](0) = π/2

[tex]cos^{-1}[/tex](√(2)/2) = π/4

To know more about cosine inverse visit:

brainly.com/question/14345853

#SPJ1

The exact angles in radians and in the interval π/6 [0, π] are:

[tex]cos^{-1}[/tex](-√(3)/2) = 7π/6

[tex]cos^{-1}[/tex](0) = π/2

[tex]cos^{-1}[/tex](√(2)/2) = π/4

What is the cosine inverse function?

The cosine inverse function, also known as the arccosine function, is the inverse function of the cosine function. It takes a value between -1 and 1 and returns the corresponding angle between 0 and π (or 0 and 180 degrees) whose cosine is that value. The notation for the cosine inverse function is cos⁻¹ or arccos.

For example, cos⁻¹(1/2) = π/3, since the cosine of π/3 is 1/2.

According to the given information

[tex]cos^{-1}[/tex](-√(3)/2) is in the second quadrant where cosine is negative. Using the unit circle, we can see that this angle is π/6 + pi = 7π/6.

[tex]cos^{-1}[/tex](0) is in the first and second quadrants where cosine is 0. This means the possible angles are π/2 and 3π/2. However, since we are only considering angles in the interval pi/6 [0, pi], the answer is π/2.

[tex]cos^{-1}[/tex](√(2)/2) is in the first quadrant where cosine is positive. Using the unit circle, we can see that this angle is π/4.

Therefore, the exact angles in radians and in the interval π/6 [0, pi] are:

[tex]cos^{-1}[/tex](-√(3)/2) = 7π/6

[tex]cos^{-1}[/tex](0) = π/2

[tex]cos^{-1}[/tex](√(2)/2) = π/4

To know more about cosine inverse visit:

brainly.com/question/14345853

#SPJ1

1. Eliminate the parameter t to rewrite the parametric equation as a Cartesian equation.
x(t) = 3t − 2
y(t) = 5t2
2.Eliminate the parameter t to rewrite the parametric equation as a Cartesian equation.
x(t) = e2t
y(t) = e4t

Answers

To rewrite the given parametric equations as Cartesian equations, we need to eliminate the parameter t. For the first equation, we get the Cartesian equation y = (3/2)x - (5/4). For the second equation, we get the Cartesian equation y = ln(x^2).

For the first equation x(t) = 3t - 2, y(t) = 5t^2, we need to eliminate t to get the Cartesian equation. Solving for t in terms of x, we get t = (x + 2)/3. Substituting this value in the equation for y, we get y = 5((x+2)/3)^2. Simplifying this, we get y = (3/2)x - (5/4).

For the second equation x(t) = e^(2t), y(t) = e^(4t), we need to eliminate t to get the Cartesian equation. Taking the natural logarithm of both sides of the equation for y, we get ln(y) = 4t.

Solving for t, we get t = ln(y)/4. Substituting this value in the equation for x, we get x = e^(2(ln(y)/4)), which simplifies to x = y^(1/2). Therefore, the Cartesian equation for this parametric equation is y = ln(x^2).

For more questions like Equation click the link below:

https://brainly.com/question/29657983

#SPJ11

If
u(t) =
leftangle0.gif
sin 8t, cos 8t, t
rightangle0.gif
and
v(t) =
leftangle0.gif
t, cos 8t, sin 8t
rightangle0.gif
,
use Formula 5 of this theorem to find
d
dt
leftbracket1.gif
u(t) × v(t)
rightbracket1.gif
.

Answers

The derivative of the cross product u(t) × v(t) with respect to t is given by:

d/dt [u(t) × v(t)] = [d/dt u(t)] × v(t) + u(t) × [d/dt v(t)]

Using the given functions, we have:

d/dt [u(t) × v(t)] = [leftangle0.gif 8cos(8t), 8sin(8t), 1 rightangle0.gif] × [t, cos(8t), sin(8t)] + [sin(8t), cos(8t), t] × [leftangle0.gif -8sin(8t), 8cos(8t), 0 rightangle0.gif]

Simplifying this expression, we get:

d/dt [u(t) × v(t)] = [8t, -8sin^2(8t), 8cos^2(8t)] + [8sin(8t), 8cos^2(8t), -8sin^2(8t)]

Therefore, the derivative of the cross product is:

d/dt [u(t) × v(t)] = [8t + 8sin(8t), 8cos^2(8t) - 8sin^2(8t), 8cos^2(8t) - 8sin^2(8t)]

To learn more about cross product, here

https://brainly.com/question/29164170

#SPJ4

A gardener already has 4 1/2 ft of fencing in his garden. He wants to fence in a square garden for his flowers. The length of one side of the garden will be 2 3/4 ft. How much more fencing will the gardener need to purchase?

Answers

The gardener will need to purchase an additional 6 1/2 ft of fencing to complete his square garden for his flowers.

You want to know how much more fencing the gardener will need to purchase if he already has 4 1/2 ft of fencing and

the length of one side of the square garden is 2 3/4 ft.

Since the garden is square, all sides have the same length. We know one side is 2 3/4 ft.

Multiply the length of one side (2 3/4 ft) by 4 to find the total amount of fencing needed for the entire garden:

2 3/4 × 4 = 11 ft.

Now, subtract the amount of fencing the gardener already has (4 1/2 ft) from the total amount needed (11 ft):

11 - 4 1/2 = 6 1/2 ft.

So, the gardener will need to purchase an additional 6 1/2 ft of fencing to complete his square garden for his flowers.

for such more question on word problem

https://brainly.com/question/21405634

#SPJ11

write the equation of the plane with normal vector =⟨−5,2,5⟩ passing through the point =(4,1,8) in scalar form.

Answers

The equation of the plane with normal vector =⟨−5,2,5⟩ passing through the point =(4,1,8) in scalar form is 5x + 2y + 5z = 22.



1. Recall the equation of a plane in scalar form: Ax + By + Cz = D, where ⟨A, B, C⟩ is the normal vector of the plane, and (x, y, z) are the coordinates of any point on the plane.

2. In this case, the normal vector is given as ⟨−5, 2, 5⟩. Therefore, A = -5, B = 2, and C = 5.

3. The plane passes through the point (4, 1, 8). We can use this point to find the value of D. Substitute the point's coordinates into the equation: -5(4) + 2(1) + 5(8) = D.

4. Calculate the value of D: -20 + 2 + 40 = 22.

5. Now, we can write the equation of the plane in scalar form using the values of A, B, C, and D: -5x + 2y + 5z = 22.

So, the equation of the plane with normal vector ⟨−5, 2, 5⟩ passing through the point (4, 1, 8) in scalar form is: -5x + 2y + 5z = 22.

Know more about vector here:

https://brainly.com/question/28028700

#SPJ11

Your classroom has an area of 72 square feet wide. What is the perimeter of your classroom

Answers

The calculated perimeter of the classroom is approximately 34 feet.

Calculating the perimeter of your classroom

The area of the square classroom is given as 72 square feet.

Let's find the length of one side of the square by taking the square root of 72:

√(72) ≈ 8.5

So each side of the square is approximately 8.5 feet long.

The perimeter of the square is the sum of the lengths of all four sides:

Perimeter = 4 x Length of one side

Perimeter = 4 x 8.5 feet

Perimeter = 34 feet

Therefore, the perimeter of the classroom is approximately 34 feet.

Read more about area at

https://brainly.com/question/24487155

#SPJ1

lent n, c, and c be integers. show that if dc | nc, then d | n.

Answers

we have shown that n is divisible by d, which means that d | n.

What is Derivation ?

Derivation is a mathematical technique used to find the rate at which a function changes. In other words, it is a method for calculating the instantaneous rate of change of a function at a particular point. Derivation is an important tool in calculus, and it has a wide range of applications in fields such as physics, engineering, and economics.

We are given that dc | nc, which means that there exists an integer k such that nc = k(dc).

We need to show that d | n, which means that there exists an integer m such that n = md.

We can start by dividing both sides of the given equation nc = k(dc) by c:

n = k(d)

Since d and k are integers, their product k(d) is also an integer, which means that n is an integer.

Therefore, we have shown that n is divisible by d, which means that d | n.

To learn more about Derivation from given link.

https://brainly.com/question/31184140

#SPJ1

M5 L39
Prepare to Compare
2
A bag of apples weighs 7 and 2/10pounds. A crate of bananas is 6 times as heavy as the apples.
10
What is the total weight of the fruit? *>

Answers

The calculated total weight of the fruit is 50 2/5 pounds

What is the total weight of the fruit?

From the question, we have the following parameters that can be used in our computation:

A bag of apples weighs 7 2/10 pounds. A crate of bananas is 6 times as heavy as the apples.

This means that

Banana = 6 * Apple

So, we have

Banana = 6 * 7 2/10 pounds.

Evaluate the products

Banana = 43 2/10 pounds.

So, the total weight is

total weight = apple + banana

This gives

total weight = 7 2/10 + 43 2/10

Evaluate the sum

total weight = 50 4/10

Simplify

total weight = 50 2/5

Hence, the total weight is 50 2/5 pounds

Read more about fraction at

https://brainly.com/question/17220365

#SPJ1

Find the area of the region that lies inside the first curve and outside the second curve. r = 3 − 3 sin(), r = 3

Answers

The area of the region that lies inside the first curve and outside the second curve. r = 3 − 3 sin(), r = 3 is 9π/2.

The two polar curves given are:

r1 = 3 - 3sin(θ)

r2 = 3

The region that lies inside the first curve and outside the second curve is the region bounded by these two curves. To find the area of this region, we need to integrate the area element over the region.

The area element in polar coordinates is given by dA = r dr dθ. Therefore, the area of the region can be computed as:

A = ∫θ1^θ2 ∫r2^r1 r dr dθ

where θ1 and θ2 are the angles at which the two curves intersect.

To find the intersection points, we set the two equations equal to each other:

3 - 3sin(θ) = 3

Simplifying, we get:

sin(θ) = 0

which implies that θ = 0 or θ = π.

Therefore, the integral becomes:

A = ∫0^π ∫3-3sin(θ)^3 r dr dθ

= ∫0^π [(1/2)r^2]_3-3sin(θ) dθ

= (1/2) ∫0^π (9 - 18sin(θ) + 9sin(θ)^2) dθ

= (1/2) [9θ + 6cos(θ) - 9sin(θ)]_0^π

= 9π/2

Therefore, the area of the region that lies inside the first curve and outside the second curve is 9π/2.

Know more about area under curve here:

https://brainly.com/question/30465469

#SPJ11

find gcd(1000, 625) and lcm(1000, 625) and verify that gcd(1000, 625) · lcm(1000, 625) = 1000 · 625.

Answers

The correct answer is gcd(Greatest common divisor)  and lcm(least common multiple) of 1000 and 625.

To find the greatest common divisor (gcd) of 1000 and 625, we can use the Euclidean algorithm. We first divide 1000 by 625 and get a quotient of 1 and a remainder of 375. Then we divide 625 by 375 and get a quotient of 1 and a remainder of 250. Continuing in this way, we eventually get a remainder of 0, meaning that 375 is the gcd of 1000 and 625.To find the least common multiple (lcm) of 1000 and 625, we can use the formula lcm(a, b) = |a · b| / gcd(a, b). Plugging in 1000 and 625, we get lcm(1000, 625) = |1000 · 625| / 375 = 166666.6667, which we can round to 166667.To verify that gcd(1000, 625) · lcm(1000, 625) = 1000 · 625, we simply plug in the values we found. gcd(1000, 625) = 375 and lcm(1000, 625) = 166667, so we have 375 · 166667 = 62500000, which is indeed equal to 1000 · 625. This confirms that we have correctly found the gcd and lcm of 1000 and 625.

For more such question on gcd

https://brainly.com/question/28756880

#SPJ11

Answer:

b

Step-by-step explanation:

Which of the following is an advantage to using graphs and diagrams?
OA. They are always the most useful in any problem.
OB. They help to visualize the problem.
OC. They sometimes give you too much information so you must
decide what is relevant to the problem.
OD. They are best used alone.

Answers

An advantage of using graphs and diagrams is B. They help to visualize the problem.

What are graphs and diagrams?

Graphs and diagrams are pictorial representations of data.

Graphs represent information using lines on two or three axes such as x, y, and z.

On the other hand, diagrams show the simple pictorial representation of what a thing looks like or how it works.

Graphs are scaled while diagrams may not be scaled.

Thus, we use graphs and diagrams to visualize data and information.

Learn more about graphs and diagrams at https://brainly.com/question/29629846.

#SPJ1

let d be the solid between the surfaces z=0, x= 1, z= 1-x^2, and z= 1 -y^2 write the tripple integral dv showing all work

Answers

The triple integral for the given solid between the surfaces z=0, x= 1, z= 1-x^2, and z= 1 -y^2 is π/24.

To set up the triple integral for the solid between the given surfaces, we need to find the limits of integration for each variable.

Since the solid lies between the planes z=0 and z=1-x^2 and z=1-y^2, the limits for z are 0 to 1-x^2 and 0 to 1-y^2.

The solid is also bounded by the planes x=1 and y=1, so the limits for x and y are 0 to 1 and 0 to 1, respectively.

Therefore, the triple integral for the given solid is:

∫∫∫ dV = [tex]\int\limits^1_0[/tex] [tex]\int\limits^1_0[/tex]-y^2 [tex]\int\limits^1_0[/tex]-x^2 dzdydx

Simplifying the limits of integration, we get:

∫∫∫ dV = [tex]\int\limits^1_0[/tex] ∫ from 0 to √(1-x) ∫ from 0 to 1-x^2 dzdydx

Evaluating the integral, we get:

∫∫∫ dV = [tex]\int\limits^1_0[/tex] ∫ from 0 to √(1-x) (1-x^2) dydx

= [tex]\int\limits^1_0[/tex] [(1/3)(1-x^2)^(3/2)]dx

= (1/3) [tex]\int\limits^1_0[/tex] (1-x^2)^(3/2) dx

Making the substitution u = 1-x^2, we get:

∫∫∫ dV = (1/6) [tex]\int\limits^1_0[/tex] u^(1/2) (1-u)^(1/2) du

= (1/6) B(3/2, 3/2)

= (1/6) (Γ(3/2)Γ(3/2))/Γ(3)

= (1/6) [(√π/2)(√π/2)]/2

= π/24

To learn more about integral click on,

https://brainly.com/question/31402704

#SPJ4

solve the separable differential equation d x d t = x 2 1 25 , dxdt=x2 125, and find the particular solution satisfying the initial condition x ( 0 ) = 7 . x(0)=7.

Answers

For the given equation,there is no solution that satisfies the initial condition x(0) = 7.

What is equation?

An equation is a statement that shows the equality between two expressions, typically separated by an equals sign. Equations are used to represent relationships between variables or quantities, and solving an equation involves finding the values of the variables that satisfy the equality.

We start by separating the variables:

[tex]dx/dt = x^2/125\\\\(125/x^2) dx = dt[/tex]

Integrating both sides gives:

-125/x = t + C

where C is the constant of integration. To find C, we use the initial condition x(0) = 7:

-125/7 = 0 + C

C = -125/7

Substituting this back into our equation, we have:

-125/x = t - 125/7

Solving for x, we get:

x = 125/(t - 125/7)

This is the general solution to the differential equation. To find the particular solution that satisfies the initial condition x(0) = 7, we substitute t = 0 and x = 7 into the general solution:

7 = 125/(0 - 125/7)

7 = 125/( - 125/7)

7 = -7

This is a contradiction, which means that there is no solution that satisfies the initial condition x(0) = 7.

To learn more about equation visit:

https://brainly.com/question/29174899

#SPJ1

The volume of air in a person's lungs can be modeled with a periodic function. The
graph below represents the volume of air, in ml., in a person's lungs over time t,
measured in seconds.
What is the period and what does it represent in this
context?
Volume of air (in ml.)
200
2000
1900
1000
300
(2.5, 2900)
(5-5, 1100)
Time (in seconds)
(8.5, 2900)
(11.5, 1100)
11
PLEASE ANSWER

Answers

The successive crests and troughs on the periodic function graph indicates that the period is 6.0 seconds, therefore;

The period is 6.0 seconds, and it represents how long it takes the breathing cycle of inhalation and exhalation to repeat

What is a periodic function?

A periodic function is a function that repeats the same values of the output variable at regular intervals.

The coordinates of the points on the periodic function graph are; (2.5, 2900), (5.5, 1100), (8.5, 2900), and (11.5, 1100)

The period is the time it takes to complete a cycle of the periodic function, which is the time between successive crests or troughs.

The crests and troughs in the graph are;

Crest; (2.5, 2900), (8.5, 2900)

Trough; (5.5, 1100), (11.5, 1100)

The period, which is the time between successive crests and troughs are therefore;

Period, T = 8.5 - 2.5 = 11.5 - 5.5 = 6.0

The period = 6.0 secondsThe period represents how long it takes for the breathing cycle of inhalation and exhalation to repeat itself

Learn more on periodic functions here: https://brainly.com/question/28616879

#SPJ1

In this problem, p is in dollars and q is the number of units. Suppose that the demand for a product is given by pq + p + 100q = 50,000. (a) Find the elasticity when p = $200. (Round your answer to two decimal places.) (b) Tell what type of elasticity this is. O Demand is elastic. O Demand is inelastic. O Demand is unitary elastic. (c) How would a price increase affect revenue? O An increase in price will result in a decrease in total revenue. An increase in price will result in an increase in total revenue. Revenue is unaffected by price.

Answers

Based on this, we can conclude that an increase in price will result in a decrease in total revenue, since the increase in price will be offset by a larger decrease in quantity demanded

To find the elasticity of demand, we need to calculate the derivative of q with respect to p multiplied by the ratio of p to q.

Taking the derivative of the demand function with respect to p, we get:

q + 100 = -p/q

Multiplying both sides by p/q, we get:

p/q * q + 100p/q = -p

Simplifying, we get:

p/q = -100/(q^2 - p)

When p = $200, we can substitute this value into the equation to get:

200/q = -100/(q^2 - 200)

Solving for q, we get:

q = 50

So at a price of $200, the quantity demanded is 50 units. To find the elasticity, we need to calculate:

E = (dq/dp) * (p/q)

Taking the derivative of the demand function with respect to p, we get:

dq/dp = -1/q^2

Substituting p = $200 and q = 50, we get:

dq/dp = -1/2500

Substituting into the formula for elasticity, we get:

E = (-1/2500) [tex]\times[/tex] (200/50) = -0.16

Since the elasticity is negative, we know that demand is inversely related to price, meaning that as the price increases, the quantity demanded will decrease.

Since the elasticity is greater than 1 in absolute value, we know that demand is elastic, meaning that a change in price will result in a relatively larger change in quantity demanded.

Based on this, we can conclude that an increase in price will result in a decrease in total revenue, since the increase in price will be offset by a larger decrease in quantity demanded.

To learn more about substitute visit:

https://brainly.com/question/18330729

#SPJ11

Solve the 1-dimensional heat equation problem. əzu ди ət u (0,t) u (x,0) 2 Əx2 u (5,t) = 0, for t > 0 f (x) = -4 sin (TX) + 3 sin (27x), for 0 < x < 5

Answers

To solve the given 1-dimensional heat equation problem, we can use the method of separation of variables. The problem is defined as follows:

Partial Differential Equation (PDE): ∂u/∂t = α^2 ∂^2u/∂x^2, for t > 0 and 0 < x < 5.

Boundary conditions:
1. u(0, t) = 0
2. u(5, t) = 0

Initial condition: u(x, 0) = f(x) = -4 sin(Tx) + 3 sin(27x), for 0 < x < 5.

To solve this problem, perform the following steps:

1. Assume a solution in the form u(x, t) = X(x)T(t).
2. Substitute this solution into the PDE and separate the variables.
3. Solve the resulting ordinary differential equations (ODEs) for X(x) and T(t) subject to the given boundary conditions.
4. Obtain the general solution by summing the product of the separated solutions X_n(x)T_n(t) with appropriate coefficients.
5. Determine the coefficients by applying the initial condition and using Fourier series representation.

Since the problem is well-posed, a unique solution exists.

Visit here to learn more about Partial Differential Equation  : https://brainly.com/question/30226743
#SPJ11

At the city museum, child admission is $6.10 and adult admission is $9.90. On Friday, four times as many adult tickets as child tickets were sold, for a total sales of $1188.20. How many child tickets were sold that day?​

Answers

C-Child ticket

4C-Adult tickets

6.10C+9.90(4C)=1188.20

6.10C+39.60C=1188.20

45.70C=1188.20

Divide both sides by 45.70 to get C.

C=26

This means 26 child tickets were sold that day.

Let's check our answer:

26×6.10=158.60

26×4=104 (Adult tickets)

104×9.90=1029.60

158.60+1029.60=1188.20

Therefore, 26 child tickets were sold on Friday.

suppose that a population of bacteria triples every hour and that the initial population is 500 bacteria. find an expression for the number n of bacteria after time t hours.

Answers

Answer:

= 500 x 3^t

Step-by-step explanation:

Exponential equation!

A quiz has 3 questions. Each question has 4 choices; a, b, c, or d. How many outcomes for answering the three questions are possible?

Answers

Answer:

64

Step-by-step explanation:

Number of outcomes = number of choices per question ^ number of questions

In this case, the number of choices per question is 4 and the number of questions is 3. Plugging these values into the formula, we get:

Number of outcomes = 4^3 = 64

an alpha level of α =.01 means what:
a. that the values of the data must fall out of the 1% critical range of the curve in order to be significant
b. that 1% of the data are not significantly different than the rest of the data
c. that more than 1% of the values are significantly different from the rest of the data
d. that the values of the data must fall within the 1% critical range of the curve in order to be significant

Answers

The correct answer is option D: that the values of the data must fall within the 1% critical range of the curve in order to be significant.

An alpha level of α = .01 sets the threshold for statistical significance at the 1% level, meaning that the values of the data must fall within the critical range of the curve (which represents the distribution of the data) that includes the central 99% of the values in order to be deemed statistically significant.

An alpha level of α = .01 is a statistical significance level that is commonly used in research. It represents the probability of obtaining a result as extreme or more extreme than the observed result, assuming the null hypothesis is true. A significance level of α = .01 means that the researcher has set the critical value at 0.01 or 1%.

Therefore, for a statistical test to be considered significant, the p-value must be less than 0.01. In other words, the values of the data must fall within the 1% critical range of the curve in order to be significant.

It is important to set a significance level before conducting a statistical test as it helps to determine the level of confidence in the results obtained from the test.

The correct answer is option D: that the values of the data must fall within the 1% critical range of the curve in order to be significant

To learn more about “critical range” refer to the https://brainly.com/question/2264373

#SPJ11

find the linearization of f(x) at x0. how is it related to the individual linearizations of and at x0?

Answers

The individual linearizations of f(x) and f'(x) at x0 are combined to obtain the linearization of f(x) at x0.

How to find the linearization of a function f(x) at a point x0?

To find the linearization of a function f(x) at a point x0, we use the following formula:

L(x) = f(x0) + f'(x0)(x - x0)

where f'(x0) represents the derivative of f(x) evaluated at x0.

The linearization of f(x) at x0 is an approximation of the function near x0, where the approximation is a linear function. It is related to the individual linearizations of f(x) and f'(x) at x0 in the following way:

The linearization of f(x) at x0 is a linear function that approximates f(x) near x0. It can be seen as the "best" linear approximation of f(x) near x0.

The linearization of f'(x) at x0 is a constant value that represents the slope of the tangent line to f(x) at x0. This constant value is also known as the instantaneous rate of change of f(x) at x0.

The linearization of f(x) at x0 can be obtained by combining the constant value f(x0) and the linear function f'(x0)(x - x0). The linear function represents the change in f(x) as x moves away from x0, while the constant value f(x0) represents the value of f(x) at x0.

Therefore, the individual linearizations of f(x) and f'(x) at x0 are combined to obtain the linearization of f(x) at x0.

Learn more about linearization

brainly.com/question/15830007

#SPJ11

Let Dn be the average of n independent random digits from (o,...,9) a) Guess the first digit of Dn so as to maximize your chance of being correct. b) Calculate the chance that your guess is correct exactly for n = 1, 2, and approxi mately for a selection of larger values of n, and show the results in a graph. c) How large must n be for you to be 99% sure of guessing correctly?

Answers

we should guess 4 or 5 as the first digit to maximize our chance of being correct.

The graph below shows the approximate probabilities for n = 1 to 10.

we find that this occurs when n is approximately 65.

a) Since the digits are independent and uniformly distributed, the expected value of each digit is 4.5.

Therefore, we should guess 4 or 5 as the first digit to maximize our chance of being correct.

b) For n = 1, there is a 10% chance of guessing correctly. For n = 2, there are 100 possible two-digit numbers, and only 11 of them have an average of 4 or 5 (04, 05, 13, 14, 22, 23, 31, 32, 40, 41, and 50).

Therefore, the chance of guessing correctly is 11/100 or 11%. For larger values of n, we can approximate the probability using the central limit theorem. The distribution of Dn approaches a normal distribution with mean 4.5 and standard deviation sqrt(8.25/n). Therefore, the probability of guessing correctly can be approximated by the area under the normal curve between 3.5 and 5.5. The graph below shows the approximate probabilities for n = 1 to 10.

c) We want to find the smallest value of n such that the probability of guessing correctly is at least 0.99. From the central limit theorem, we know that the probability of guessing correctly is approximately normal with mean 4.5 and standard deviation sqrt(8.25/n).

Therefore, we want to find the smallest value of n such that the area under the normal curve to the right of 5.5 is at least 0.01. Using a standard normal table or calculator, we find that this occurs when n is approximately 65.

To know more about central limit theorem, refer here:

https://brainly.com/question/18403552

#SPJ11

choose the form of the partial fraction decomposition of the integrand for the integral x2 − 2x − 1

Answers

The partial fraction decomposition for this integrand will have the form:
x2 − 2x − 1 = A/(x-1) + B/(x-1)

Once we find A and B, we can substitute them back into the original equation and integrate each term separately. This will allow us to evaluate the integral of x2 − 2x − 1 using the partial fraction decomposition.

To perform a partial fraction decomposition on the integrand x2 − 2x − 1, we first need to factor the denominator into linear factors. The quadratic x2 − 2x − 1 can be factored as (x-1)(x-1), which means we have a repeated linear factor of (x-1).

To decompose this, we need to write it in the form of a fraction with a numerator and denominator. The numerator will have a constant term for each repeated linear factor, and the denominator will be the product of each linear factor.

Know more about partial fraction decomposition. here:

https://brainly.com/question/30894807

#SPJ11

Describe how to use dimensional analysis to convert 20 inches to feet. Choose the correct answer below. A. Multiply 20 inches by 2.54 cm/1 in. B. Divide 20 inches by 1ft/12 in. C. Multiply 20 inches by 1 cm/2.54 in
D. Multiply 20 inches by 1 ft/2.54 in. E. Divide 20 inches by 1 cm/2.54 in F. Divide inches by 12 ft /1 in
G. Multiply 20 inches by 12 ft/1 in
H. Divide 20 inches by 2.54 cm/1 in.

Answers

The correct answer to convert 20 inches to feet using dimensional analysis is B. Divide 20 inches by 1ft/12 in.

To convert 20 inches to feet using dimensional analysis, we need to set up a conversion factor that relates inches to feet. We know that there are 12 inches in one foot, so we can write the conversion factor as 1 ft / 12 in. We want to cancel out the units of inches, so we can write 20 inches as 20 in / 1. Then, we can multiply 20 in / 1 by our conversion factor, making sure that the units cancel out appropriately:

20 in / 1 × 1 ft / 12 in = 20/12 ft

Simplifying, we get:

20 in / 1 × 1 ft / 12 in = 1.67 ft

Therefore, 20 inches is equal to 1.67 feet when using dimensional analysis and dividing by the conversion factor of 1ft/12in.

To learn more about dimensional analysis here:

brainly.com/question/1769579#

#SPJ11

help someone need help with this question ​

Answers

cut shape into two which is triangle and a trapezium use to formulas of the identified shapes in solving the area

11. Determine if the point (6, 1) is a solution to the system below. Justify your answer.

Answers

Answer:

Step-by-step explanation:

The point (6, 1) is not a solution to the system.

(6, 1) lays on the dotted line.

Find the Laplace transform of the following functions.
a. a(t) = 28(t) + 3+ 4u(t) b. b(t) = 5 – 5e-2t(1 + 2t) c. c(t) = 10e-4t cos(20t + 36.99) d. d(t) = 1.5tu(t)- 1.5(t – 100u(t – 10) e. f(t) = 1.5tu(t) – 1.5(t – 10u(t – 10) – 15u(t – 10) f. g(t) = 1.5tu(t) - 1.5(t – 10)u(t – 10) - 3.0(t – 15)u(t – 15) g. h(t) = (t + 2)u(t – 3) h. j(t) = 6e-2t+11u(t – 5)

Answers

The Laplace transform of the following functions are: a. (112s + 16)/s; b. (5s^2 + 20s + 10e^-2s - 20)/s(s+2)^2; c. (10s - 40)/(s^2 + 400)(s+4); d. 1.5/s^2 - 1.5e^(-10s)/s^2 + 150/s; e. 1.5/s^2 - 1.5e^(-10s)/s^2 + 15/s - 15e^(-10s)/s; f. 1.5/s^2 - 1.5e^(-10s)/s^2 + 30/(s+15); g. e^(-3s) * (-1/s^2 + 2/s); h. 6/(s+2) * (1/(s+11)).

The Laplace transform of the following functions are:

a. L{a(t)} = 28L{δ(t)} + 3L{1} + 4L{u(t)}

= 28 + 3s + 4(1/s)

= (112s + 12 + 4)/s

= (112s + 16)/s

b. L{b(t)} = 5L{1} - 5L{e-2t(1 + 2t)}

= 5/s - 5L{e-2t}L{1 + 2t}

= 5/s - 5/(s + 2)^2 * (1 + 2/s)

= (5s^2 + 20s + 10e^-2s - 20)/s(s+2)^2

c. L{c(t)} = 10L{e-4t}L{cos(20t+36.99)}

= 10/(s+4) * [s/(s^2 + 400) - 4/(s^2 + 400)]

= (10s - 40)/(s^2 + 400)(s+4)

d. L{d(t)} = 1.5L{tu(t)} - 1.5L{(t-100)u(t-10)}

= 1.5(1/s^2) - 1.5e^(-10s)(1/s^2 - 100/s)

= 1.5/s^2 - 1.5e^(-10s)/s^2 + 150/s

e. L{f(t)} = 1.5L{tu(t)} - 1.5L{(t-10)u(t-10)} - 15L{u(t-10)}

= 1.5(1/s^2) - 1.5e^(-10s)(1/s^2 - 10/s) - 15e^(-10s)/s

= 1.5/s^2 - 1.5e^(-10s)/s^2 + 15/s - 15e^(-10s)/s

f. L{g(t)} = 1.5L{tu(t)} - 1.5L{(t-10)u(t-10)} - 3L{(t-15)u(t-15)}

= 1.5(1/s^2) - 1.5e^(-10s)(1/s^2 - 10/s) - 3e^(-15s)(1/s)

= 1.5/s^2 - 1.5e^(-10s)/s^2 + 30/(s+15)

g. L{h(t)} = L{(t+2)u(t-3)}

= e^(-3s) * L{(t+2)}

=  e^(-3s) * (-1/s^2 + 2/s)

h. L{j(t)} = 6L{e^(-2t)}L{e^(11u(t-5))}

= 6/(s+2) * L{e^(11u(t-5))}

= 6/(s+2) * L{e^(11u(t-5))}

= 6/(s+2) * (1/(s+11))

Know more about Laplace transform here:

https://brainly.com/question/29583725

#SPJ11

compute the values of dy and δy for the function y=e3x 5x given x=0 and δx=dx=0.03.

Answers

The values of dy and δy for the function y=e3x 5x given x=0 and δx=dx=0.03 are:
dy = 0.6
δy = 0.6

To compute the values of dy and δy for the function y=e3x 5x given x=0 and δx=dx=0.03, we need to use the formula for the total differential of a function:

dy = (∂y/∂x)dx

where ∂y/∂x is the partial derivative of y with respect to x.

In this case, we have:

y = e3x 5x

∂y/∂x = 3e3x 5x + e3x 5

At x=0, this becomes:

∂y/∂x = 3(1) 5 + (1) 5 = 20

So, we can now calculate dy:

dy = (∂y/∂x)dx = (20)(0.03) = 0.6

This means that when x changes by 0.03, y changes by 0.6.

To calculate δy, we need to use the formula:

δy = |(∂y/∂x)δx|

where δx is the uncertainty in x.

In this case, we have:

δy = |(20)(0.03)| = 0.6

So, the uncertainty in y is also 0.6.

Know more about differential of a function here:

https://brainly.com/question/30079101

#SPJ11

The current measurements in a strip of wire are assumed to follow a normal distribution with a mean of 10 milliamperes and a standard deviation of 2 milliamperes. 1. What is the 70th percentile of current measurement? 10.97 11.05 10.87 12.09

Answers

The 70th percentile of current measurement is 11.05 milliamperes.

How to find the 70th percentile of the current measurement?

To find the 70th percentile of the current measurement, we need to find the value of the current measurement that separates the lowest 70% of measurements from the highest 30% of measurements.

We can use a standard normal distribution table or a calculator to find the z-score that corresponds to the 70th percentile, which is 0.5244.

Then we can use the formula:

x = μ + zσ

where x is the value of the current measurement, μ is the mean of the distribution, σ is the standard deviation, and z is the z-score corresponding to the 70th percentile.

Plugging in the values, we get:

x = 10 + 0.5244(2) = 11.05

Therefore, the 70th percentile of current measurement is 11.05 milliamperes.

So, the answer is 11.05.

Learn more about current measurement

brainly.com/question/7947534

#SPJ11

Other Questions
In a BIP problem with 3 mutually exclusive alternatives, x1 , x2 , and x3, the following constraint needs to be added to the formulation: The life time of a certain device has CDFF (x) = 1 e^x2 x > 0; > 0Derive the pdf of X and determine its mean, mode, median and variance. Determine whether HI can dissolve each metal sample. If it can, write a balanced chemical reaction showing how the metal dissolves in HI and determine the minimum volume of 3.5MHI required to completely dissolve the sample.a. 2.15gAl.b. 4.85gCu.c. 2.42gAg. what is the spring constant of a spring that stores 21 j of elastic potential energy when compressed by 7.9 cm from its relaxed length? "what is the definition of 'basal transcription' in e. coli and other bacteria?" The plurality money in the discretionary budget is spent on (check all that apply): health care social security welfare education defense PLEAS HELP IM GIVING BRAINLIESIT For a copper-silver alloy of composition 28 wt% Ag-72 wt% Cu and at 775C (1425F) (see Animated Figure 9.7) do the following: (a) Determine the mass fractions of a and phases. Mass fraction a = _______[The tolerance is +/- 5.0%.] Mass fraction B = ________[The tolerance is +/- 5.0%.] (b) Determine the mass fractions of primary a and eutectic microconstituents. Mass fraction a primary = _______[The tolerance is +/- 5.0%.] Mass fraction eutectic = ____________[The tolerance is +/- 5.0%.] (c) Determine the mass fraction of eutectic a. Mass fraction a eutectic = ________[The tolerance is +/- 5.0%.] Choose SSS, SAS,or neither tocompare thesetwo triangles. The ATmega32 has a DIP package of pins. In ATmega32, how many pins are assigned to V_CC and GND? In the ATmega32, how many pins are designated as I/O port pins? How many pins are designated us PORTA in the 40-pin DIP package and what are their numbers? How many pins are designated as PORTB in the 40-pin DIP package and what are their numbers? How many pins are designated as PORTC in the 40-pin DIP package and what are their numbers? How many pins are designated as PORTD in the 40-pin DIP package and what are their numbers? Upon reset, all the bits of ports are configured as (input, output). Explain the role of DDRx and PORTx in I/O operations. 1) What are the Conditions for the interference of light? Describe Young Double Slit experiment for the interference of light? A 200-lb cable is 100 ft long and hangs vertically from the top of a tall building. How much work is required to lift the cable to the top of the building? Why are Vitamin K and E not very popular? Your friend says that enough information is given to prove that x=30. Is he correct?(15 points!!!) List all the combinations of five objects x, y, z, s, and t taken two at a time. What is 5C2? the programs ________ is defined as the number of households watching a particular tv program, expressed as a percentage of the total homes that have sets in use. Working cooperatively with students who have different learning styles from you will help you learn to use new strategies.a. trueb. false Find the sum of the series sigma_n = 1^infinity 11/n^6 correct to three decimal places. Consider that f(x) = 11/8x is positive and continuous for x > 0. To decide if f(x) = 11/x^8 is also decreasing, we can examine the derivative f'(x) = 88/x^9 Examining the derivative, we have f'(x) = -88x^-9 = -88/x^9 Since the denominator is always positive on (0, infinity) then -88/x^9 is always negative Since f'(x) is always negative, then f(x) = 11/x08 is decreasing on (0, infinity). Therefore, we can apply the Integral Test, and we know that the remainder R_n lessthanorequalto integral_n^infinity We have R_n lessthanorequalto integral_n^infinity 11x^-8 dx = lim_b rightarrow infinity To be correct to three decimal places, we want R_n lessthanorequalto 0.0005. If we take n = 4, then R_4 Since R_4 lessthanorequalto 0.0005, sigma_n = 1^4 11/n^8 approximate sigma_n = 1^4 11/n^8 correct to three decimal places. Rounding to three decimal places, we estimate sigma_n = 1^infinity 11/n^8 with > sigma_n = 1^4 11/n^8 = 0.001 find the maximum and minimum values of the function y = 4 x2 1 x on the interval [0, 2]. (round your answers to three decimal places.) maximum minimum on june 1, 4,000 shares of $20 par value common stock are issued in exchange for new equipment. comparable equipment sells for $116,000 cash. other shares of this class of common stock originally sold for $35 per share. the journal entry to record this exchange should debit the equipment account for what amount? on june 1, 4,000 shares of $20 par value common stock are issued in exchange for new equipment. comparable equipment sells for $116,000 cash. other shares of this class of common stock originally sold for $35 per share. the journal entry to record this exchange should debit the equipment account for what amount? $116,000 $0 $140,000 $80,000 $60,000