How many fewer minutes did Lizzie practice on Tuesday than on Monday?

f''(2.503) is positive and f''(-0.378) is negative, the function changes concavity at x = 2.503 and x = -0.378. Therefore, these are the inflection points of the function.

Answer: 2.503,-0.378.

What is function?

In mathematics, a function is a relationship between two sets of elements, called the domain and the range, such that each element in the domain is associated with a unique element in the range.

To find the inflection points of a function, we need to find the points at which the function changes concavity, which occurs where the second derivative of the function changes sign.

First, we need to find the second derivative of the given function f(x):

f(x) = [tex]4x^{4}[/tex] - 22x³ - 18x² + 15

f'(x) = 16x³ - 66x² - 36x

f''(x) = 48x² - 132x - 36

Now we set the second derivative f''(x) equal to zero and solve for x to find the critical points:

48x² - 132x - 36 = 0

Dividing both sides by 12, we get:

4x² - 11x - 3 = 0

Solving for x using the quadratic formula, we get:

x = (-(-11) ± sqrt((-11)² - 4(4)(-3))) / (2(4))

x = (11 ± sqrt(265)) / 8

x ≈ 2.503 or x ≈ -0.378

These are the critical points of the function f(x).

Now we need to check the concavity of the function at these points to see if they are inflection points. We can do this by evaluating the second derivative f''(x) at each critical point:

f''(2.503) ≈ 237.878

f''(-0.378) ≈ -82.878

Since f''(2.503) is positive and f''(-0.378) is negative, the function changes concavity at x = 2.503 and x = -0.378. Therefore, these are the inflection points of the function.

Answer: 2.503,-0.378.

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Assuming there are only 6 seats in that row.

Case 1 : The father is sitting in neither of both ends.

-> There are only 3 possible seats left for the mother, as she cannot sit to either of the seats next to the father.

-> There are 4 x 3 x 4 x 3 x 2 x 1 = 288 possible ways.

Case 2 : The father is sitting at one end.

-> There are 4 possible seats for the mother (because there is only 1 seat next to the father).

-> There are 2 x 4 x 4 x 3 x 2 x 1 = 192 possible ways.

Altogether, there are 480 possible ways to arrange the family.

If the answer is wrong, please comment because I'm not too confident about this answer to be honest.

There are 480 ways in which this family of 6 can be seated in a row while the father and mother are not sitting together.

We will find the number of arrangements when the father and mother are sitting together (say N), then subtract it from the total number of arrangements.

Now, let us find the total number of arrangements

Total no. of arrangements = 6!

                                           = 720

Now, find the number of arrangements when the father and mother are sitting together. As father and mother are together, treat them as a single person. Now, there are 5 people.

A number of arrangements = 5! =120

but, father and mother can also change their places in 2 ways = 2!

So, N = 120 * 2 = 240

Subtract N from total arrangements, 720-240 = 480.

Therefore, the answer is 480.

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Answer:

20

Step-by-step explanation:

The variance of ϵi is Var(ϵi) = jxij², which means that the variance of ϵ is a function of xi. This violates the assumption of constant variance in the linear regression model.

By applying a linear equation to observed data, linear regression attempts to demonstrate the link between two variables. One variable is supposed to be independent, while the other is supposed to be dependent.

Using matrix notation, we can represent the linear regression model as:

Y = Xβ + ϵ

where Y is the n × 1 response vector, X is the n × 2 design matrix with the first column all ones and the second column containing the predictor variable xi, β is the 2 × 1 vector of regression coefficients (β₀ and β₁), and ϵ is the n × 1 vector of errors with E(ϵ) = 0 and Var(ϵ) = jxij².

In this notation, we can write the model for each observation i as:

yi = β₀ + β₁xi + ϵi

where yi is the response variable for observation i, xi is the predictor variable for observation i, β₀ and β₁ are the regression coefficients, and ϵi is the error term for observation i.

The variance of ϵi is Var(ϵi) = jxij², which means that the variance of ϵ is a function of xi. This violates the assumption of constant variance in the linear regression model. This heteroscedasticity can be addressed using weighted least squares or other methods that account for the variable variance.

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Answer:

$58438

Step-by-step explanation:

36500×[tex]1.04^{12}[/tex] = 58437.67598

nearest whole number = $58438

Answer:

548442

Step-by-step explanation:

a1 = 36500

a2 = 36500(1+0.04) = 37960

a3 = 37960(1+0.04) = 39478.4

Common ratio: 1+0.04 = 1.04

Sn = [tex]\frac{a1-a1r^n}{1-r}[/tex]  =  [tex]\frac{36500-36500(1.04)^12}{1-1.04}[/tex] = [tex]\frac{-21937.67598}{-0.04}[/tex] = 548441.8995

≈ 548,442

Step-by-step explanation:

m = number of math books

s = number of science books

h = number of history books

m + h + s = 3s

m + h = 2s

s = m - 6

m + h = 2(m - 6) = 2m - 12

h = m - 12

and since s = m - 6, this also means

h = s - 6

that means, the number of History reference books is 12 less than the Mathematics reference books. which is then 6 less than the number of Science reference books.

Option C: 0.80

To find the probability that a randomly selected observation is between 13 and 45 for a uniform random variable x on the interval (10, 50), follow these steps:

1. Calculate the total length of the interval: 50 - 10 = 40.
2. Determine the length of the subinterval between 13 and 45: 45 - 13 = 32.
3. Divide the length of the subinterval by the total length of the interval to find the probability: 32 / 40 = 0.8.

So, the probability that a randomly selected observation is between 13 and 45 is 0.80, which corresponds to option C.

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The expression {xyz | x, z ∈ σ ∗ and y ∈ σ ∗ 1σ ∗ , where |x| = |z| ≥ |y|} represents a set of strings that can be formed by concatenating three substrings: x, y, and z.

The strings in the set must satisfy the following conditions:

Intuitively, this set represents all the strings that can be formed by taking a "core" string of length |y| and adding some arbitrary strings before and after it to create a longer string of the same length. The single symbol at the end of y is meant to separate y from the rest of the string and ensure that y is not empty.

For example, if σ = {0, 1}, then one possible string in the set is "0011100", where x = "00", y = "111", and z = "00". This string satisfies the conditions because |x| = |z| = 2, |y| = 3, and y ends in the symbol "1" from σ. Other strings in the set could be "0000110", "1010101", or "1111000", depending on the choice of x, y, and z.

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The large jar contains 4 ounces of jam and each small jar contains 2 ounces of jam. X = [4; 2]

We can also use matrix multiplication to represent the total amount of jam in the jars. Let L denote the number of large jars and S denote the number of small jars. Then we have:

LX + S2*X = total jam

Simplifying this expression, we get:

(L + 2S)*X = total jam

Since we know that the total amount of jam that the jars can hold is 8 ounces, we have:

(L + 2S)*X = 8

Substituting the values for X and solving for L + 2S, we get:

(4 + 2*2) * (4; 2) = 8

Therefore, we have:

L + 2S = 2

Since we also know that the large jar minus one small jar can hold 2 ounces of jam, we have:

L - S = 2

Solving these two equations simultaneously, we get:

L = 2

S = 0

there is 1 large jar with 4 ounces of jam and 0 small jars with 2 ounces of jam each. This confirms that the total amount of jam is indeed 8 ounces.

Therefore, X = [4; 2], which means that the large jar contains 4 ounces of jam and each small jar contains 2 ounces of jam.

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The net change between the values of the variable x=2 and x=3 for the function f(x)=3x-8 is 1. The average rate of change between the values of x=2 and x=3 for the function f(x)=3x-8 is 3.

(a) The net change between the given values of the variable is determined by subtracting the function value at x = 2 from the function value at x = 3.

f(3) - f(2) = (33) - 8 - [(32) - 8] = 1

Therefore, the net change between the given values of the variable is 1.

(b) The average rate of change between the given values of the variable is determined by dividing the net change by the difference in the values of the variable.

Average rate of change = (f(3) - f(2))/(3-2) = (1/1) = 1

Therefore, the average rate of change between the given values of the variable is 1.

The net change between two points on a function is the difference in the function values at those points. In this case, the function values at x = 2 and x = 3 are 2 and 1, respectively. Therefore, the net change between these two points is 1.

The average rate of change between two points on a function is the slope of the line connecting those two points. In this case, the two points are (2, f(2)) and (3, f(3)). The slope of the line connecting these two points is the same as the average rate of change between these two points. The formula for the slope of the line passing through two points is (y2-y1)/(x2-x1), which is the same as the average rate of change formula. Therefore, the average rate of change between x = 2 and x = 3 is equal to the slope of the line connecting the two points, which is 1.

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The given series is equivalent to the sum of two p-series: ∑n^(-1/2) + ∑n^(-2). Where the first series converges since p1 = 1/2 > 0 and the second series also converges since p2 = 2 > 1.

To start, we can simplify the given series as:

sqrt(n+4)/n^2 = 1

Taking the reciprocal of both sides:

n^2/sqrt(n+4) = 1

Multiplying both sides by sqrt(n+4):

n^2 = sqrt(n+4)

Squaring both sides:

n^4 = n+4

This is a quadratic equation that we can solve using the quadratic formula:

n = (-1 ± sqrt(17))/2

Since we are only interested in positive integer values of n, we take the larger root:

n = (-1 + sqrt(17))/2 ≈ 1.56

Now that we have found the value of n that satisfies the equation, we can rewrite the given series in terms of p-series:

sqrt(n+4)/n^2 = (n+4)^(1/2) / n^2
= (1 + 4/n)^(1/2) / n^2

Using the formula for the p-series:

∑n^-p = 1/1^p + 1/2^p + 1/3^p + ...

We can see that the given series is equivalent to:

(1 + 4/n)^(1/2) / n^2 = n^(-2) * (1 + 4/n)^(1/2)
= n^(-p1) + n^(-p2)

Where p1 is the smaller value and p2 is the larger value of p that make up the two p-series.

We can find p1 and p2 by comparing the exponents of n on both sides of the equation:

p1 = 1/2
p2 = 2

Therefore, the given series is equivalent to the sum of two p-series:

∑n^(-1/2) + ∑n^(-2)

Where the first series converges since p1 = 1/2 > 0 and the second series also converges since p2 = 2 > 1.

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The forward-difference formula estimates the slope of the tangent line at x using f(x+h) and f(x), while the backward-difference formula uses f(x) and f(x-h).

The two-point forward-difference formula for approximating the derivative of a function f(x) at a point x is:

f'(x) = (f(x+h) - f(x))/h

where h is a small positive number. This formula estimates the slope of the tangent line to the function f(x) at x by taking the slope of the secant line between f(x) and f(x+h).

The two-point backward-difference formula for approximating the derivative of a function f(x) at a point x is:

f'(x) = (f(x) - f(x-h))/h

where h is a small positive number. This formula estimates the slope of the tangent line to the function f(x) at x by taking the slope of the secant line between f(x) and f(x-h).

To determine f'(x) using these formulas, we need to know the value of f(x) and the value(s) of f(x ± h), depending on which formula we are using. We can then plug these values into the appropriate formula and calculate an approximation of f'(x). These formulas are first-order approximations and the error in the approximation is proportional to h. Using smaller values of h will generally give more accurate approximations, but may also lead to numerical instability or round-off error.

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The given function is linear, and it can be expressed in form f(x) = ax + b, f(x) = 1x + 0, or simply f(x) = x.

To determine if the given function is linear, we need to check if it can be expressed in form f(x) = ax + b, where a and b are constants.

The given function is f(x) = (5/1)x.

Let's rewrite the function in the required form:

f(x) = (5/5)x

Since 5/5 = 1, we can simplify the function to:

f(x) = 1x + 0

Here, a = 1 and b = 0.

So, the given function is linear, and it can be expressed in form f(x) = ax + b, f(x) = 1x + 0, or simply f(x) = x.

In Mathematics, a linear function is defined as a function that has either one or two variables without exponents. It is a function that graphs to a straight line. In case, if the function contains more variables, then the variables should be constant, or it might be the known variables for the function to remain it in the same linear function condition.

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The quadratic formula mentioned below is used to get the following solutions for x:

[tex]x = \frac{15y \pm \sqrt{225y^2 - 60y^3}}{15}[/tex]

we can use these solutions of x to find the corresponding values of y:

[tex]y = \frac{6x \pm \sqrt{36x^2 - 60xy}}{6}[/tex]

Partial derivative is a type of derivative that is taken with respect to one variable, with all other variables held constant.

The local extrema of the function f (x, y) = 3x2y y³−3x²−3y² 2  can be found by taking the partial derivative of the function with respect to x and y and then setting them equal to zero.

This gives us the following equations:

[tex]\frac{\partial f}{\partial x} = 6xy^3 - 6x = 0[/tex]

[tex]\frac{\partial f}{\partial y} = 3x^2y^2 - 6y = 0[/tex]

To solve these equations, we can set the partial derivatives equal to each other and solve for y:

[tex]6xy^3 - 6x = 3x^2y^2 - 6y[/tex]

[tex]3x^2y^2 - 6y = 6xy^3 - 6x[/tex]

[tex]3x^2y^2 - 6xy^3 = 6x - 6y[/tex]

[tex]y(3x^2 - 6xy^2) = 6x - 6y[/tex]

[tex]y = \frac{6x - 6y}{3x^2 - 6xy^2}[/tex]

Next, we can substitute this expression for y into the equation for the partial derivative with respect to x to get a quadratic equation in x:

[tex]6xy^3 - 6x = 6x\left(\frac{6x - 6y}{3x^2 - 6xy^2}\right)^3 - 6x[/tex]

[tex]6xy^3 - 6x = 6x\left(\frac{6x^2 - 36xy + 36y^2}{(3x^2 - 6xy^2)^2}\right) - 6x[/tex]

[tex]6xy^3 - 6x = 6x\left(\frac{6x^2 - 36xy + 36y^2 - 3x^2 + 6xy^2}{(3x^2 - 6xy^2)^2}\right)[/tex]

[tex]6xy^3 - 6x = 6x\left(\frac{3x^2 - 30xy + 30y^2}{(3x^2 - 6xy^2)^2}\right)[/tex]

[tex]0 = 3x^2 - 30xy + 30y^2[/tex]

This equation can be solved using the quadratic formula to get the following solutions for x:

[tex]x = \frac{15y \pm \sqrt{225y^2 - 60y^3}}{15}[/tex]

Finally, we can use these solutions to find the corresponding values of y:

[tex]y = \frac{6x \pm \sqrt{36x^2 - 60xy}}{6}[/tex]

Therefore, the local extrema of the function f (x, y) =3x2y y³−3x²−3y² 2  can be found by substituting the solutions for x and y into the original function and classifying them as either maximums or minimums depending on the sign of the function.

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The dimensions (x, y, z) that minimize the amount of cardboard used for a box with a volume of 23,328 cm³ are (28, 28, 30).

1. Given the volume, V = x*y*z = 23,328 cm³.

2. The surface area, which represents the amount of cardboard used, is S = x*y + x*z + y*z.

3. To minimize S, we need to use calculus. First, express z in terms of x and y using the volume equation: z = 23,328 / (x*y).

4. Substitute z into the surface area equation: S = x*y + x*(23,328 / (x*y)) + y*(23,328 / (x*y)).

5. Now find the partial derivatives dS/dx and dS/dy, and set them equal to zero.

6. Solve the system of equations to get x = 28 and y = 28.

7. Plug x and y back into the equation for z: z = 23,328 / (28 * 28) = 30.

So the dimensions that minimize the amount of cardboard used are (28, 28, 30).

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0.0.0.0 is used in setting static routes as a default route. This means that any traffic that does not match a specific route in the routing table will be directed to the next hop specified in the 0.0.0.0 route.

In other words, it is the catch-all route. This is commonly used in situations where there is only one gateway or exit point from a network. By setting the default route to the gateway, all traffic that is destined for a location outside of the local network will be sent to the gateway for further processing.
In the context of setting static routes, using the IP address 0.0.0.0 represents the default route, also known as the gateway of last resort. A static route is a manually configured network route that defines a specific path for data packets to follow. The 0.0.0.0 address is used to define a catch-all route for any packets whose destination doesn't match any other specific routes in the routing table. This ensures that the network can still attempt to route the packets even if the destination isn't explicitly defined.

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In the above diagram the Side RT is aligning with the base of the protactor i.e. 0 degree, therefore measure of angle QRT is 130 degree.Hence Option C is correct.

An angle is a geometric figure formed by two rays or line segments that share a common endpoint, called a vertex.

A protractor is a measuring tool used to determine the angle between two lines or the angle of a geometric shape.

According to the given information :

In the above diagram the Side RT is aligning with the base of the protactor i.e. 0 degree, therefore we read the angle measurement where the other side intersects with the protractor's degree scale. Therefore, side QR is intersecting at 130 degree on protcator.

So measure of angle QRT is 130 degree.Hence Option C is correct.

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Answer:

The equation of the line is y=2x+4

Step-by-step explanation:

The equation of the line is expressed in slope-intercept form.
y=mx+b
m is slope
b is y-intercept

The slope of the equation is 2 since the line rises 2 and over 1, defined as 2/1 or 2.

The Y-Intercept is 4 since that's the only point where the line crosses the y-axis.

If we plug these two numbers into the formula:

The equation of the line is y=2x+4

Answer: y=2x+4

Step-by-step explanation:

Our y-intercept is 4 since we see x=0 when (4,0)

To find our slope, we can choose two points on the graph and do rise/run.

Two points chosen: (1,6) and (2,8)

[tex]\frac{8-6}{2-1} \\= 2[/tex]

The calculated value of the surface area​ is 184 sq inches

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

11.5 in by 16 in

The surface area​ of the shape is then calculated as

Area = product of dimensions

In other words

Area = Length * Width

Substitute the known values in the above equation, so, we have the following representation

Area = 11.5 * 16

Evaluate

Area = 184 sq inches

Hence, the surface area​ is 184 sq inches

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The domain and range of the function h(x) = 16x - 4 are both all real numbers.

To find the domain and range, we need to examine the function and determine the possible values for x (domain) and

the corresponding output values for h(x) (range).

Domain: Since the function h(x) = 16x - 4 is a linear function, there are no restrictions on the input values for x.

Therefore, the domain includes all real numbers.

Domain: (-∞, +∞)

Range: Similarly, as a linear function, the output values for h(x) can take any real number as well.

Therefore, the range is also all real numbers.

Range: (-∞, +∞)

In conclusion, the domain and range of the function h(x) = 16x - 4 are both all real numbers.

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The statement that is true is Line 2 and 4 are perpendicular.

The equation of a line is a mathematical representation of the line.

Looking at the lines below

Line 1:3y = 4x + 3

Line 2:4y = 3x - 4

Line 3:3x + 4y = 8

Line 4:4x + 3y = -6

Re-writing the lines in the form y = mx + b, we have that

Line 1:y = 4x/3 + 1

Line 2:y = 3x/4 - 1

Line 3:4y = -3x/4 + 8

Line 4:y = -4x/3 - 6

We notice that the product of the gradients of line 2 and line 4 multiply to give -1. That is 3/4 × -4/3 = -1

So, the statement that is true is Line 2 and 4 are perpendicular.

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Answer:

D

Step-by-step explanation:

To find the range, we need to first find the difference between the highest and lowest values in the data set.

The highest value is 14, and the lowest value is 4.

Range = Highest value - Lowest value = 14 - 4 = 10

Therefore, the value of the range for this set of data is 10. Option D is correct.

Answer:

  y ∈ ℝ

Step-by-step explanation:

You want the solution to the equation 0.4(3y + 18) = 1.2y + 7.2.

The parentheses can be removed by making use of the distributive property.

  0.4(3y + 18) = 1.2y + 7.2 . . . . . . given

  0.4(3y) +0.4(18) = 1.2y +7.2

  1.2y +7.2 = 1.2y +7.2 . . . . . . . . . true for any value of y

The set of solutions for y is all real numbers.

__

Additional comment

Actually, the solution set is "all complex numbers" as well as any other entities for which multiplication and addition with scalars are defined. For example, y could be a matrix of complex numbers, and the equation would still be true.

The derivatives are, d/dx(x²e^(x²))|x=0 = 0 and d^(6)/dx^(6)(x²e^(x²))|x=0 = 0.

To find the derivatives of the given function, we can differentiate term by term:

f(x) = x²e^(x²) = x²(1 + x² + x^(4)/2! + x^(6)/3! + ...)

Taking the derivative with respect to x:

f'(x) = 2xe^(x²) + 2x³e^(x²) = 2x(1 + x² + x^(4)/2! + x^(6)/3! + ...) + 2x³(1 + x² + x^(4)/2! + x^(6)/3! + ...)

= 2x + 2x³ + 2x³ + O(x^(5))

Evaluating at x=0 gives:

f'(0) = 0

Differentiating again:

f''(x) = 2e^(x²) + 4x²e^(x²) + 4xe^(x²) = 2(1 + x² + x^(4)/2! + x^(6)/3! + ...) + 4x²(1 + x² + x^(4)/2! + x^(6)/3! + ...) + 4x(1 + x² + x^(4)/2! + x^(6)/3! + ...)

= 2 + 2x² + 2x² + 4x² + 4x + O(x^(4))

Evaluating at x=0 gives:

f''(0) = 2

Differentiating once more:

f'''(x) = 8xe^(x²) + 4e^(x²) = 4(2x³ + x)

Evaluating at x=0 gives:

f'''(0) = 0

Differentiating three more times:

f^(6)(x) = 16x³e^(x²) + 48xe^(x²) = 16x³ + 48x + O(x)

Evaluating at x=0 gives:

f^(6)(0) = 0

Therefore, d/dx(x²e^(x²))|x=0 = 0 and d^(6)/dx^(6)(x²e^(x²))|x=0 = 0.

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The Laplace transform of [tex]e^(^-^8^t^)sin(9t)[/tex]  is[tex](9/(s+8)^2 + 81)/(s^2 + 81)[/tex].

We need to find the Laplace transform of the given function,[tex]e^(^-^8^t^)sin(9t)[/tex], and express the answer in terms of s. The Laplace transform of [tex]e^(^-^8^t^)sin(9t)[/tex]  can be found using the formula:
ℒ[tex]{e^(^a^t^) f(t)} = F(s-a)[/tex],
where a is the constant (-8 in this case), f(t) is the function [tex](sin(9t)[/tex] in this case), and [tex]F(s-a)[/tex]  is the Laplace transform of f(t) with s replaced by     [tex](s-a)[/tex].

Step 1: Find the Laplace transform of [tex]sin(9t)[/tex].
The Laplace transform of [tex]sin(kt)[/tex] is given by the formula:
ℒ[tex]{sin(kt)} = k / (s^2 + k^2)[/tex],
where k is the constant (9 in this case). So,

ℒ[tex]{sin(9t)} = 9 / (s^2 + 9^2)[/tex].

Step 2: Apply the formula ℒ[tex]{e^(^a^t^) f(t)} = F(s-a)[/tex]  to find the Laplace transform of [tex]e^(^-^8^t^) sin(9t)[/tex].
Using the result from Step 1, we have:
ℒ[tex]{e^(^-^8^t^) sin(9t)} = 9 / ((s - (-8))^2 + 9^2)[/tex]

ℒ[tex]{e^(^-^8^t^) sin(9t)} = (9/(s+8)^2 + 81)/(s^2 + 81)[/tex]


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Answer: b. T(0) ≠ 0. To determine if the given transformation T is linear, we need to check if it satisfies the properties of a linear transformation.

The first property to check is T(0) = 0.
T(0, 0) = (3(0) - 2(0), 0 + 5, 4(0))
T(0, 0) = (0, 5, 0)
Now, let's analyze the result:
T(0) = (0, 5, 0)
Comparing the result with the given options:
a. T(0) = (1, 1, 1) - False
b. T(0) ≠ 0 - True
c. T(0) = 5 - False
d. T(0) = 0 - False
Based on the result, option b is true, which means T(0) ≠ 0. Since T(0) ≠ 0, the transformation T is not linear, and we do not need to check the second property T(cu + dv) = cT(u) + dT(v) for all vectors u, v in the domain of T and all scalars c, d.
answer: b. T(0) ≠ 0

To show that T is not linear, we need to find a counter-example of one of the properties of linear transformations.
First, we check if T(0) follows the correct property:
T(0,0) = (3(0) - 2(0), (0) + 5, 4(0)) = (0, 5, 0)
Now, we need to check if T(0) = 0.
Since T(0) ≠ (0,0,0), T is not linear.
Therefore, the answer is (b) T(0) ≠ 0.

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In the given figure, we can find that there are 19 different triangles.

Define triangles?

Simple polygons with three sides and three internal angles make up triangles. One of the fundamental geometric shapes, it is represented by the symbol △ and consists of three connected vertices. Triangles can be categorised into a number of different categories according on their sides and angles.

Each geometrical shape has unique side and angle characteristics that enable us to recognise it. Three vertices, three internal angles, and three sides make up a triangle. According to the triangle's "angle sum property," a triangle's three inner angles can never add up to more than 180 degrees.

Here in the given figure,

If we look closely and calculate we can find that there are 19 different triangles.

Out of the 19, 18 of them are in pairs, that makes it 9 pairs.

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In the given figure, we can find that there are 19 different triangles.

Define triangles?

Simple polygons with three sides and three internal angles make up triangles. One of the fundamental geometric shapes, it is represented by the symbol △ and consists of three connected vertices. Triangles can be categorised into a number of different categories according on their sides and angles.

Each geometrical shape has unique side and angle characteristics that enable us to recognise it. Three vertices, three internal angles, and three sides make up a triangle. According to the triangle's "angle sum property," a triangle's three inner angles can never add up to more than 180 degrees.

Here in the given figure,

If we look closely and calculate we can find that there are 19 different triangles.

Out of the 19, 18 of them are in pairs, that makes it 9 pairs.

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(a) negative infinity also approaches 0 because e^x becomes very large as x becomes very negative, (b)  f(x) is increasing on the interval (1, infinity) and decreasing on the interval (-infinity, 1), (c)  f(x) is concave downward on the interval (-infinity, 2) and concave upward on the interval (2, infinity) and (d) the graph approaches the x-axis as x approaches infinity and negative infinity.

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The population mean is 15.6 if A population consists of the following five values: 11, 13, 15, 17, and 22.

What is Mean ?

In statistics, the mean is a measure of central tendency of a set of numerical data. It is commonly referred to as the average, and is calculated by adding up all the values in the data set and dividing the sum by the total number of values.

a. To list all samples of size 3, we can take all possible combinations of 3 values from the population:

{11, 13, 15}: mean = 13

{11, 13, 17}: mean = 13.67

{11, 13, 22}: mean = 15.33

{11, 15, 17}: mean = 14.33

{11, 15, 22}: mean = 16

{11, 17, 22}: mean = 16.67

{13, 15, 17}: mean = 15

{13, 15, 22}: mean = 16.67

{13, 17, 22}: mean = 17.33

{15, 17, 22}: mean = 18

b. To compute the mean of the distribution of sample means, we need to find the mean of all the sample means computed in part (a). There are 10 sample means, so we add them up and divide by 10:

(13 + 13.67 + 15.33 + 14.33 + 16 + 16.67 + 15 + 16.67 + 17.33 + 18)  ÷10 = 15.4

To compute the population mean, we simply take the average of the population values:

(11 + 13 + 15 + 17 + 22) ÷ 5 = 15.6

Therefore, the population mean is 15.6

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Answer:

First, let's calculate the volume of water that was transferred from Container A to Container B.

The formula for the volume of a cylinder is V = πr^2h, where r is the radius of the cylinder and h is the height.

For Container A:

radius = diameter/2 = 14/2 = 7 feet

height = 18 feet

V_A = π(7)^2(18) ≈ 2,443.96 cubic feet

For Container B:

radius = diameter/2 = 18/2 = 9 feet

height = 15 feet

V_B = π(9)^2(15) ≈ 3,817.01 cubic feet

So the volume of water transferred from Container A to Container B is:

V_water = V_A ≈ 2,443.96 cubic feet

After the transfer, Container B contains both the water that was originally in Container B and the water transferred from Container A. The total volume of water in Container B is:

V_total = V_B + V_water ≈ 6,261.97 cubic feet

To find the volume of the empty portion of Container B, we need to subtract the volume of the water from the total volume of Container B:

V_empty = V_B - V_water ≈ 3,817.01 - 2,443.96 ≈ 1,373.05 cubic feet

So the volume of the empty portion of Container B is approximately 1,373.05 cubic feet.

Answer:

1501.7 ft

DELATAMATH

Step-by-step explanation: