Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle. Y = x2, y = 5 x2 + 4.

As d2y/dx2 is positive, the rate of change of gradient is positive, that means (2,-10) is a minimum point.

As stated in the video, the rate of change of dy/dx is the second derivative ( d2y/dx2 )

Thus, at a stationary point (dy/dx = 0), when d2y/dx2 < 0 meaning the rate of change of the gradient is negative the point is a maximum point. We can see that in the image below.

And at minimum points the rate of change of gradient is positive. Thus d2y/dx2 > 0 at minimum points.

A curve has equation y=x3 -12x +6 Find the coordinates of each stationary point, and the nature of these points (minimum or maximum).

Find when dy/dx = 0

dy/dx=3x2 -12

3x2 – 12 = 0

x2 =4

x = 2 or x=-2

when x = 2 y=-10 when x= -2 y=22

Thus, coordinates of stationary points are (2,-10) and (-2,22)

Now in order to find whether they are maximum or minimum points, we have to calculate d2y/dx2

d2y/dx2 = 6x

when x=2 d2y/dx2 = 12

As d2y/dx2 is positive, the rate of change of gradient is positive, that means (2,-10) is a minimum point.

when x= -2 d2y/dx2 = -12

As d2y/dx2 is negative, the rate of change of the gradient is negative, which means that (-2,22) is a maximum point

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The equation that the speed of an object is speed = distance/time

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

Parameter = Object

Argument = Speed

By definition, the speed of an object is the ratio of the distance moved by the object and the time travelled by the object

Mathematically, this can be represented as

Speed = Distance : Time

Express as fraction

Speed = Distance/Time

Hence, the equation is Speed = Distance/Time

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The political hurdles that African American representatives have to face after they went into office is Racism.

Racism is the belief that different groups of humans have different behavioral traits that correspond to inherited characteristics and that they can be divided based on the superiority of one race over another.

Racism stems from the belief that a person is superior to others because of the color of their skin. In the olden days, blacks were excluded from public schools, denied the right to vote, and faced racism and legal discrimination almost everywhere. This is still faces in politics as well.

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Answer:

you will have to pay 427.75 cents.

Step-by-step explanation:

Multiply 7.25 by 59.

1.716762 is the correct solution up to 6 decimal places by using Newton's method.

The Newton's method is a potent tool, and in general, the convergence is quadratic: as the procedure approaches the root, the discrepancy between the root and the approximation squares, almost doubling the number of accurate digits at each step. The approach does, however, have significant drawbacks. The phrase "Newton's method" refers to Isaac Newton's explanation of a particular application of the method in his books De analysi per aequationes numero terminorum infinitas, which he wrote in 1669 and had William Jones publish in 1711, and De metodis fluxionum et serierum infinitarum (written in 1671, translated and published as Method of Fluxions in 1736 by John Colson).

Given,

f(x)=eˣ+2x-9

f'(x)=eˣ+2

ˣₙ₊₁=ˣₙ-f(ˣₙ)/f'(ˣₙ)

Let, n=1

x₂=1.9074740

x₃=1.7299338

x₄=1.716825

x₅=1.7167621

x₆=1.716762

x₅≈x₆

Therefore, 1.716762 is the correct solution up to 6 decimal places.

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The linear inequality that is represented by the graph is; y ≤ One-halfx + 2

The general form of equation of a line in slope intercept form is;

y = mx + c

where;

m is slope

c is y-intercept

Now, from the inequality graph attached, we can see that we can calculate the slope from;

m = (y2 - y1)/(x2 - x1)

m = (3 - 2)/(2 - 0)

m = 1/2

We can also see that the y-intercept which is the point where the line crosses the y-axis is; y = 2.

The line is a solid line and not dotted and the shaded part is beneath the line and as such;

The inequality is; y ≤ One-halfx + 2

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dellana company tested 50 products for 75 hours each. during this time, it experienced four breakdowns. compute the number of failures per hour, 937.50 hours is the mean time between failures.

The span of time before something occurs or before a given time frame expires. We can utilise the current computers while waiting for the new ones to arrive next week.

Given that,

dellana company tested 50 products

time =75 hours

Thus, total products in hours

= 50 products × 75 hours each

= 3750 product hours

Also said that, 4 breakdowns in 3750 product hours,

so, (4/3750) = 1.067 × 10⁻³ = 0.001067 breakdowns per hour.

Also, an average of 0.001067 breakdowns per hour = λ

therefore, mean time between failures:

= 1/ λ

= 1/0.001067

= 937.50 hours

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Answer:

hence the number is 24.

Step-by-step explanation:

Two Solutions:

1.10x+y=4(x+y)

2x=y

2.10x+y+18=10y+x

x−y=−2

x−2x=−2

x=2

y=4

two digit number =24

Answer:

x=+1

Step-by-step explanation:

the value of x will be positive 1 for we will take x=0 y=-1 where we inter change the values to be x=y-1=0

A) The equation of the model is 20x=100.

B) Todd will take 50 days  to build his savings up to a total of $250.

An assertion that two expressions containing variables or numerical values are equivalent is known as an equation. The first step in resolving a variable equation is to identify the values of the variables that lead to the equality being true. The variables that must be changed in order to solve the equation are referred to as the unknowns, and the unknown values that satisfy the equality are referred to as the equation's solutions.

1 day ------ $5

20 days -------?

x=20×5

x=$100

A) Let the savings per one day =$5

For 20 days it will be $100

And it is given as 20x=100

Where x=time in days

B) Todd has $150 dollars for 20 days

Actual savings for 20 days=100

? --------250

x=(20×250)/100

x=50 days.

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Answer: 5,1

Step-by-step explanation:

The logarithm bases can you use to solve for x in the exponential equation [tex]4^{3+x}[/tex]= 25 is log base 4. So, option 3 is correct.

Finding the slope (m) and y-intercept (b) of a line's graph will allow us to build a linear function with the formula y=mx+ b. We may build an exponential function of the form y=a+ bx given an exponential curve graph by locating the common ratio (b) and y-intercept (a) on the graph. If your function has the formula y = a + b x, where and are constants, a 0 and b > 0 and b 1, then it must be exponential. Your functions in quadratic equations were always to the second power. The exponent of exponential functions is a variable.

Given equation is  [tex]4^{3+x}[/tex]= 25

Applying logarithm with base 4 to both sides.

log   [tex]4^{3+x}[/tex]=log 25

(3+x)log 4=log25/log 4

3+x=log 25/log 4

x=(log 25/log4)-3

So, we use log base 4.

Hence, option 3 is correct.

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Answer: 47 mins

Step-by-step explanation:

18 min pulls weeds +  13min water + 16 min plant = 47 mins

Answer:

6. 4/1  7. 4/2

Step-by-step explanation:

that's all I got I hope it helps.

Answer: K^15

Step-by-step explanation:

The equation is (k^5)^3

To simplify this, we take the square root of 5-time square root 3 equal square root of 15

So the answer is k^15

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By using simultaneous linear equation, it can be calculated that

Xochitl has 8 nickels and 16 dimes

What is simultaneous linear equation?

At first it is important to know about linear equation

Equation shows the equality between two algebraic expressions by connecting the two algebraic expressions by an equal to sign.

A one degree equation is known as linear equation.

Two or more linear equations, which can be solved together to obtain common solution are known as simultaneous linear equation.

Let the number of nickel Xochitl has be x and the number of dimes Xochitl has be y

She has a total of 24 nickels and dimes altogether

x  + y = 24 .... (1)

Xochitl has $2 worth of nickels and dimes

0.05x + 0.1y = 2

5x + 10y = 200

x + 2y = 40 ..... (2)

From the graph, it is clear that the two simultaneous linear equation intersects at (8, 16)

So x = 8, y = 16

Xochitl has 8 nickels and 16 dimes

The graph has been attached

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Answer:

10.58

Step-by-step explanation:

The geometry work number 6 has line MN parallel to line YX, line WY is parallel to line NX and line WX is parallel to line MO.

In geometry, parallel lines are straight lines that do not intersect or meet at any point.

Considering the triangle in the geometry work number 6,

the straight lines MN and YX can continue in same plene and will never meet at any point, so there are said to be parallel to each other.

the straight lines WY and NX can continue in their direction and will not intersect each other, so they are said to be parallel to each other.

and also, the straight lines WX and MO are parallel to each other because they can not intersect each other at any point.

Therefore, we can say that line MN is parallel to line YX, line WY is parallel to line NX and line WX is parallel to line MO.

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The greatest number of cups that can be completely filled with water is 2.

A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.

The greatest number of cups that can be completely filled with water will be:

1000ml = 1 liter

2/3l = 667ml

Therefore, the number of cups will be:

= 667 / 275

= 2

The greatest number of cups is 2.

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The fifth number in the 7853rd row as required to be determined is; 47,116.

It follows from the task content that the fifth number on the 7853rd row of the sequence is to be determined. By observation, each column of the sequence of numbers represents an arithmetic sequence of numbers in which case;

The common difference is; 6 - 0 = 12 - 6 = 17 - 11 = 6.

Therefore, since the nth term of an arithmetic sequence is given by the formula;T (n) = a + (n - 1) d.

where a = does term

n = number of terms

d = common difference

In this scenario, the first term is the fifth number on the first row = 4.Therefore, the fifth number on the 7853rd row is; T (7853) = 4 + (7853 - 1) × 6T = 4 + (7852 × 6)T = 4 + 47,112T = 47, 116.

Therefore, the required number is; 47,116.

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The union of the sets D and E, denoted by the expression, D ∪ E where, set D = {2, 5, 7}, and the set E = {2, 4, 5, 6} is D∪E = {2, 4, 5, 6, 7}

A set comprises of a collection of members or elements which are objects in the set that together are taken as one object by itself.

The specified sets are;

D = {2, 5, 7}

E = {2, 4, 5, 6}

F = {1, 3, 4, 5, 7}

The union of two sets is the set of the elements in each of the set in the union, including the elements that are in both sets in the union.

The symbol used to indicate a union between two sets is the '∪'

The union of the set D and E is therefore;

D ∪ E = {2, 5, 7} ∪ {2, 4, 5, 6}

The elements in the union are therefore; 2, 2, 4, 5, 5, 6, 7

The numbers values are to be represented once in the set, such that the union of the set becomes; 2, 4, 5, 6, 7.

D ∪ E = {2, 4, 5, 6, 7}

The number of elements in the union of the set D and E is 5 elements, including 2, 4, 5, 6, and 7

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Answer:

49/4 π sq feet

Step-by-step explanation:

The circumference is the distance around a circle. The formula for circumference is:

C = πd

d stands for diameter. The circumference was given, 7π.

C = πd

= 7π

The diameter is 7. This is double the radius. The radius is half the circumference, so this radius is 7/2.

The area of the circle is:

Area = πr^2

= π(7/2)^2

= π(49/4)

=49/4 π

The area is 49/4 π

square feet.

Answer:

the answer is

12.25π ft

Reason:

The scale factor 1.75 is what we'll multiply by each dimension of the blue figure, to get the green figure.

The "3" is multiplied by 1.75 to get 3*1.75 = 5.25 which is the value of x, since both involve the top side of each respective trapezoid.

In other words,

(preimage Length)*(scale factor) = (image length)

(3)*(1.75) = x

5.25 = x

x = 5.25

Step-by-step explanation:

Call AB side a...which is 7

therefore b+c = 8 (editted this part due toarithmetic slip)

sketch it, use the cosine rule knowing cos 60 = 0.5and set up a simultaneous equation for the sides b+ c

7^2 = b^2+c^2 - bc

then

a + b = 15

(as this 2bcCOSA cancels down)

Answer:

which grafde are you in and I think ur question is wrong

Using the unit conversion concept of mathematics and converting the length provided into various units , There are multiple ways to express 8 feet such as in inches, meter or kilometer and many more.

A unit is a reference value established by law or convention that is used as a benchmark to measure an object's physical characteristic.

By definition, unit conversion refers to the division or multiplication operation used to convert measurements of the same quantity between various units. The act of converting something from one form to another in mathematics, such as from inches to millimeters or from liters to gallons, is known as conversion.

l= 8 feet

In inches, l= 96 inches

In meter, l =2.43 meters

In kilometer, l = 0.0024 kilometers

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Using the unit conversion concept of mathematics and converting the length provided into various units , There are multiple ways to express 8 feet such as in inches, meter or kilometer and many more.

What do you mean by unit?

A unit is a reference value established by law or convention that is used as a benchmark to measure an object's physical characteristic.

What do you mean by unit conversion?

By definition, unit conversion refers to the division or multiplication operation used to convert measurements of the same quantity between various units. The act of converting something from one form to another in mathematics, such as from inches to millimeters or from liters to gallons, is known as conversion.
l= 8 feet
In inches, l= 96 inches
In meter, l =2.43 meters
In kilometer, l = 0.0024 kilometers

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Answer:

Step-by-step explanation:

You want the values of x and y that make the quadrilateral a parallelogram, given the halves of one diagonal are marked (3x-14) and (x+2), and the halves of the other diagonal are marked (4y-7) and (y+11).

The diagonals of a parallelogram bisect each other. This means the marked segments on each diagonal are congruent.

  (3x -14) = (x +2)

  2x = 16 . . . . . . . . . add 14-x

  x = 8 . . . . . . . . divide by 2

  (4y -7) = (y +11)

  3y = 18 . . . . . . . . . add 7-y

  y = 6 . . . . . . . . divide by 3

The values of x and y are 8 and 6, respectively.

Answer:

a=14

b=166

c=166

d=166

e=166

f=14

x=5