Consider The Following Function. G(V) = V^3 - 75v + 6 Find The Derivative Of The Function. G'(V) = Find The Values Of V Such That G'(V)

Using the squeeze theorem, we can conclude that the sequence an must also converge to 6 as n approaches infinity. Therefore, the limit of the sequence is 6.

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The calculated area of the triangle is 60 square cm.

Let the length of the other leg be x cm.

Using the Pythagorean theorem, we have:

17^2 = 15^2 + x^2

Simplifying:

289 = 225 + x^2

Subtracting 225 from both sides:

64 = x^2

Taking the square root of both sides:

x = 8

Therefore, the area of the triangle is:

Area = 1/2 * x * Leg

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

Area = (1/2) * 15 * 8 = 60 square cm.

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The p-value (0.040) is less than the significance level of 0.05, we reject the null hypothesis that the true average strength is greater than or equal to 100 MPa.

The standard deviation of the compressive strength is a measure of the variation or spread of the compressive strength values around the mean.

Let's denote the sample mean and sample standard deviation of the compressive strength by x-bar and s, respectively.
Then the test statistic is:

t = (x-bar - 100) / (s /√n)

Here, n = sample size (given, n = 10)
Using the given data, the sample mean and standard deviation:

x-bar = (112.3 + 97.0 + 92.7 + 86.0 + 102.0 + 99.2 + 95.8 + 103.5 + 89.0 + 86.7) / 10 = 96.42

s = √(((112.3-94.2)² + (97.0-94.2)² + ... + (86.7-94.2)²) / 9) = 8.26

So, the test statistic,

t = (96.42 - 100) / (8.3 / √10) = - 1.36

The degrees of freedom for the t-distribution is n - 1 = 9. Using a t-table or calculator, we find that the p-value for a one-tailed test (since we are testing for a decrease in strength) with 9 degrees of freedom and a test statistic of -1.36 is approximately 0.040.

Since the p-value (0.040) is less than the significance level of 0.05, we reject the null hypothesis that the true average strength is greater than or equal to 100 MPa. Therefore, there is evidence to suggest that the true average strength is less than 100 MPa.

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The answer of the given question based on the Triangle is the length of AC is approximately 12.81 centimeters (rounded to the nearest tenth of a centimeter).

The Pythagorean theorem is  mathematical principle that relates to three sides of right triangle. It states that in  right triangle, square of length of hypotenuse (side opposite the right angle) is equal to sum of the squares of the lengths of other two sides.

Since ABCD is a kite, we know that AC and BD are diagonals of the kite, and they intersect at right angles. Let E be the point where AC and BD intersect. Also, since DE = EB, we know that triangle EDB is Equilateral.

We can use Pythagorean theorem to find length of AC. Let's call length of AC "x". Then we have:

(AD)² + (CD)² = (AC)² (by Pythagorean theorem in triangle ACD)

Substituting the given values, we get:

(8)² + (10)² = (x)²

64 + 100 = x²

164 = x²

Taking square root of both sides, we will get:

x ≈ 12.81

Therefore, the length of AC is approximately 12.81 centimeters (rounded to the nearest tenth of a centimeter).

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This causes the integrand to be undefined at x = 7, making the integral improper.

When an integrand has a singularity (a point where the function is not defined) within the interval of integration, the integral is considered improper. In this case, the singularity occurs at x = 7, which is within the interval of integration [7, 8].

This means that the function is not defined at x = 7 and, therefore, the integral cannot be evaluated in the usual way.

To evaluate an improper integral, one must first split the interval of integration into two parts: one part that includes the singularity and another part that does not.

In this case, we can split the interval [7, 8] into two parts: [7, a] and [a, 8], where a is some number greater than 7.

The integral in question is improper because the integrand is not continuous on the interval [7, 8].

Specifically, the function [tex]6/(x - 7)^(3/2)[/tex] has a singularity at x = 7, as the denominator [tex](x - 7)^(3/2)[/tex]becomes zero when x is equal to 7.

This causes the integrand to be undefined at x = 7, making the integral improper.

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The period of this pendulum if it is placed in a truck that is accelerating horizontally at 8.00 m/s^2 is 4.43 s.

The period of a simple pendulum is given by:

T = 2π√(L/g),

where L is the length of the pendulum and g is the acceleration due to gravity.

(a) When the pendulum is located in an elevator accelerating upward at 8.00 m/s^2, the effective acceleration acting on the pendulum will be:

a_eff = g + a_elevator = g + 8.00 m/s^2

So, the new period T' of the pendulum can be found using the formula:

T' = 2π√(L/a_eff)

T' = 2π√(7.00 m / (9.81 m/s^2 + 8.00 m/s^2))

T' = 2.10 s

Therefore, the period of small oscillations for this pendulum if it is located in an elevator accelerating upward at 8.00 m/s2 is 2.10 s.

(b) When the pendulum is located in an elevator accelerating downward at 8.00 m/s^2, the effective acceleration acting on the pendulum will be:

a_eff = g - a_elevator = g - 8.00 m/s^2

So, the new period T' of the pendulum can be found using the formula:

T' = 2π√(L/a_eff)

T' = 2π√(7.00 m / (9.81 m/s^2 - 8.00 m/s^2))

T' = 0.42 s

Therefore, the period of small oscillations for this pendulum if it is located in an elevator accelerating downward at 8.00 m/s^2 is 0.42 s.

(c) When the pendulum is placed in a truck that is accelerating horizontally at 8.00 m/s^2, this will not affect the period of the pendulum because the acceleration is perpendicular to the direction of the pendulum's oscillations. Therefore, the period of the pendulum in this case will be the same as when it is at rest:

T = 2π√(L/g)

T = 2π√(7.00 m / 9.81 m/s^2)

T = 4.43 s

Therefore, the period of this pendulum if it is placed in a truck that is accelerating horizontally at 8.00 m/s^2 is 4.43 s.

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Answer:

Step-by-step explanation:

The translation theorem of  transforms states that if F(s) has a Laplace transform, then the Laplace transform of e^at F(s) is given by F(s-a) for s > a.

Using this theorem, we can find the inverse Laplace transform of 9s + 10 F(s) by first writing it in the form e^at F(s-a), where a is the constant term in the expression 9s + 10 F(s).

Since the Laplace transform of a constant is given by L{1} = 1/s, we can write:

9s + 10 F(s) = 9s + 10 L{1/s} F(s)
= 9s + 10 ∫ e^(-st)/t dt F(s)
= 9s + 10 ln(s) F(s)

Comparing this to the form e^at F(s), we see that a = ln(s), so we can write:

9s + 10 F(s) = e^ln(s) F(s) = s F(s-ln(s))

Thus, applying the translation theorem, we have:

L^-1{9s + 10 F(s)} = L^-1{s F(s-ln(s))} = e^t f(t-ln(t))

where f(t) is the inverse Laplace transform of F(s).

In summary, we can find the inverse Laplace transform of 9s + 10 F(s) by first expressing it in the form e^at F(s), finding the value of a, and then applying the translation theorem to obtain e^t f(t-ln(t)).

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the inverse Laplace transform

9 δ'(t) + 65 [tex]e^{-58t}[/tex]- 65 δ(t)

According to the translation theorem, if the Laplace transform of a function f(t) is F(s), then the Laplace transform of the function [tex]e^{-at}[/tex]f(t) is given by F(s+a).

In this case, let's consider the function 9s + 10 F(s) - 65/(s+58). We can rewrite this as:

9s + 10 F(s) - 65/(s+58) = 9s + 10 [F(s) - 6.5/(s+58)]

Notice that we have a term in square brackets that looks like the Laplace transform of a function [tex]e^{-at}[/tex]f(t) with a=58 and f(t)=6.5. As a result, the translation theorem can be used to determine this term's inverse Laplace transform, which we can then combine with the 9s inverse Laplace transform to obtain the final result.

So, we have:

[tex]L^{-1}{10[F(s) - 6.5/(s+58)]}[/tex] = 10 [tex]L^{-1}{F(s) - 6.5/(s+58)}(t)[/tex]

= 10 [f(t) - 6.5 e^(-58t)] = 10 [6.5 δ(t) - [tex]6.5 e^{-58t}[/tex])]

where δ(t) is the Dirac delta function.

We can write the inverse Laplace transform of the original function as 9δ'(t), where δ'(t) is the derivative of the Dirac delta function, using the inverse Laplace transform of 9s:

L^-1{9s + 10 F(s) - 65/(s+58)} = 9 δ'(t) + 65 [tex]e^{-58t}[/tex]- 65 δ(t)

Therefore, the inverse Laplace transform of 9s + 10 F(s) - 65/(s+58) is given by:

9 δ'(t) + 65 [tex]e^{-58t}[/tex]- 65 δ(t)

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Rounding to the nearest whole number, we get x = 2524.

a. Using the standard normal distribution table, we can find the corresponding z-score for the given probability:

P(X ≤ x) = P((X-μ)/σ ≤ (x-μ)/σ) = P(Z ≤ (x-μ)/σ) = 0.9382

From the standard normal distribution table, the closest probability to 0.9382 is 0.9382, which corresponds to a z-score of 1.56. Therefore:

(x - μ) / σ = 1.56

Substituting in the given values for μ and σ, we get:

(x - 2500) / 800 = 1.56

Solving for x, we get:

x = 2500 + 1.56 * 800 = 2728

Rounding to the nearest whole number, we get x = 2728.

b. Again, using the standard normal distribution table, we can find the corresponding z-score for the given probability:

P(X > x) = P((X-μ)/σ > (x-μ)/σ) = P(Z > (x-μ)/σ) = 0.025

From the standard normal distribution table, the closest probability to 0.025 is 0.0249979, which corresponds to a z-score of -1.96. Therefore:

(x - μ) / σ = -1.96

Substituting in the given values for μ and σ, we get:

(x - 2500) / 800 = -1.96

Solving for x, we get:

x = 2500 - 1.96 * 800 = 1144

Rounding to the nearest whole number, we get x = 1144.

c. We can use the same approach as in part (a), but this time we need to find the z-score for the probability between two values:

P(2500 ≤ X ≤ x) = P((X-μ)/σ ≤ (x-μ)/σ) - P((X-μ)/σ ≤ (2500-μ)/σ) = P(Z ≤ (x-μ)/σ) - P(Z ≤ -0.63) = 0.1217

From the standard normal distribution table, the closest probability to 0.1217 is 0.1217, which corresponds to a z-score of 1.17. Therefore:

(x - μ) / σ = 1.17

Substituting in the given values for μ and σ, we get:

(x - 2500) / 800 = 1.17

Solving for x, we get:

x = 2500 + 1.17 * 800 = 3056

Rounding to the nearest whole number, we get x = 3056.

d. We can use the same approach as in part (a):

P(X ≤ x) = P((X-μ)/σ ≤ (x-μ)/σ) = P(Z ≤ (x-μ)/σ) = 0.4840

From the standard normal distribution table, the closest probability to 0.4840 is 0.4838, which corresponds to a z-score of 0.03. Therefore:

(x - μ) / σ = 0.03

Substituting in the given values for μ and σ, we get:

(x - 2500) / 800 = 0.03

Solving for x, we get:

x = 2500 + 0.03 * 800 = 2524

Rounding to the nearest whole number, we get x = 2524.

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The area of the surface generated by revolving sqroot 8y-y^2 on the interval [0,8] about the y-axis is 16π/3 (4 - sqroot 2) square units.

To find the area of the surface generated by revolving the function sqroot 8y-y^2 on the interval about the y-axis, we can use the formula:

A = 2π ∫ [a,b] f(y) √(1 + (f'(y))^2) dy

where a and b are the limits of the interval, f(y) is the function being revolved (in this case, sqroot 8y-y^2), and f'(y) is its derivative.
First, let's find the derivative of sqroot 8y-y^2:

f(y) = sqroot 8y-y^2

f'(y) = 4(1-y)/2(sqroot 8y-y^2) = 2(1-y)/sqroot 8y-y^2

Next, we need to find the limits of integration. Since the function is symmetrical around the y-axis, we only need to consider the part of the graph where y is positive. We can find the y-intercepts of the function by setting it equal to zero:
sqroot 8y-y^2 = 0

y(8-y) = 0

y = 0 or y = 8

So, our interval of integration is [0,8].
Plugging in the values we found into the formula, we get:

A = 2π ∫ [0,8] sqroot 8y-y^2 √(1 + (2(1-y)/sqroot 8y-y^2)^2) dy

This integral can be difficult to solve directly, so we can simplify it using trigonometric substitution. Let's make the substitution:
y = 4sin^2 θ

Then, we have:

dy = 8sin θ cos θ dθ

sqroot 8y-y^2 = sqroot 32sin^2 θ - 16sin^4 θ = 4sin θ sqroot 2-cos(2θ)

Substituting these expressions into the integral and simplifying, we get:

A = 4π ∫ [0,π/2] 4sin θ sqroot 2-cos(2θ) √(1 + (2cos θ)^2) dθ

This integral can be evaluated using standard techniques, such as integration by parts and trigonometric identities. The final answer is:
A = 16π/3 (4 - sqroot 2)

Therefore, the area of the surface generated by revolving sqroot 8y-y^2 on the interval [0,8] about the y-axis is 16π/3 (4 - sqroot 2) square units.

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Answer:

(A)=9

Step-by-step explanation:

ab+9/c

-3×-2 + 9/2

(-×-=+)

6+3

(A)=9

The impulse response (b) hy(t) = cos(2t)u(t) corresponds to a stable LTI system. Option b is correct.

An LTI (Linear Time-Invariant) system is stable if and only if its impulse response h(t) is absolutely integrable, i.e., the integral of the absolute value of the impulse response over all time is finite:

For impulse response (a), hi(t) = e^-(1-2)t u(t), we can compute the integral of its absolute value:

Since the integral is finite, this impulse response corresponds to a stable LTI system. For impulse response (c), h(t) = 8δ(-21), where δ(t) is the Dirac delta function, the integral of the absolute value is:

Since the integral is finite, this impulse response also corresponds to a stable LTI system. For impulse response (b), hy(t) = cos(2t)u(t), we can compute the integral of its absolute value:

Since the integral is infinite, this impulse response does not correspond to a stable LTI system. Hence Option b is correct.

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If selling price (SP) is Rs 200 and profit percent is 10%, proportionately, the cost price (CP) is Rs. 181.82.

The cost price can be determined using proportions.

Proportion refers to the equation of two or more ratios.

In this situation, we known that the selling price is always equal to the cost price plus the profit margin.

Using percentages, which are proportional representations, the selling price will be equal to 110%, which is equal to the cost price (100%) plus the the profit margin (10%).

Selling price = Rs. 200

Profit percentage = 10%

Cost price = 100%

Selling price = 110% (100% + 10%)

Proportionately, the Cost price will be Rs. 181.82 (Rs. 200 ÷ 110%)

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It will take 150 minutes for Mitchell to lap Jane's car, if they start together at same point.

Displacement refers to the distance and direction of an object's change in position from its starting point to its final position. It has both magnitude and direction because it is a vector quantity.  

Displacement is different from distance, which refers to the total path covered by an object, regardless of its starting and ending positions.

Mitchell completes a lap in 25 minutes, which means that he completes 1/25th of the lap in one minute. Similarly, Jane completes 1/30th of the lap in one minute.

Let's assume that they start together at the same point and that Mitchell overtakes Jane after t minutes.

During this time t, Mitchell would have completed t/25th of the lap and Jane would have completed t/30th of the lap. We know that Mitchell overtakes Jane when he completes one full lap more than Jane.

Therefore, we can set up an equation:

t/25 - t/30 = 1

Simplifying this equation, we get:

6t/150 - 5t/150 = 1

t/150 = 1

t = 150

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The area of the shaded region is 7.63 m².

The area of the shaded region is calculated as follows;

area of the shaded region = area of circle - area of quadrilateral

The diameter of the circle is calculated as follows;

d² = 3² + 4²

d² = 25

d = √ (25)

d = 5

The radius of the circle = 5/2 = 2.5 m

Area of the circle = πr² = π (2.5)² = 19.63 m²

Area of shaded region = 19.63 m² - (3 m x 4 m) = 7.63 m²

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The name of the analytical technique that is less reliable for identifying acceptable projects as it ignores the time value of money is the payback period method.

The payback period method calculates the time required for the cash inflows from a project to equal the initial investment, without considering the time value of money. This technique may lead to incorrect decisions in situations where projects have different cash flow patterns over time or where the cost of capital is high.

Therefore, it is important to use more reliable analytical techniques, such as net present value (NPV) or internal rate of return (IRR), which take into account the time value of money and provide a more accurate evaluation of the project's profitability over time.

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--The complete question is, What is the name of the analytical technique that is less reliable for identifying acceptable projects as it ignores the time value of money? --

The exact sum of the infinite geometric series [infinity] 1 5 k k = 2 is 2 and the exact sum of the infinite geometric series does not exist, and the answer is "diverges."

To find the sum of an infinite geometric series, we use the formula:
Sum = a / (1 - r)
where a is the first term and r is the common ratio.
In this case, a = 1 and r = 5/2 (since each term is 5/2 times the previous term).
Thus, the sum of the infinite geometric series is:
Sum = 1 / (1 - 5/2) = 1 / (1/2) = 2
Therefore, the exact sum of the infinite geometric series [infinity] 1 5 k k = 2 is 2.
To find the exact sum of an infinite geometric series, we need to determine if it converges or diverges. In this case, the series is given by:
Σ (5^k), where k starts at 2 and goes to infinity.
To determine if the series converges or diverges, we must find the common ratio. The common ratio (r) in this series is 5. For an infinite geometric series to converge, the absolute value of the common ratio must be less than 1 (i.e., |r| < 1).
Since the absolute value of the common ratio in this series is greater than 1 (|5| > 1), the series diverges. Therefore, the exact sum of the infinite geometric series does not exist, and the answer is "diverges."

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The two plumbers will charge the same amount of money when the number of hours (h) is 5.

Let's denote the number of hours as "h".

The total cost charged by Plumber A is given by:

Cost_A = Callout_A + HourlyRate_A * h where Callout_A is the callout fee charged by Plumber A ($30) and HourlyRate_A is the hourly rate charged by Plumber A ($18/hour).

The total cost charged by Plumber B is given by:

Cost_B = Callout_B + HourlyRate_B * h where Callout_B is the callout fee charged by Plumber B ($45) and HourlyRate_B is the hourly rate charged by Plumber B ($15/hour).

We want to find the number of hours (h) when the total cost charged by Plumber A is equal to the total cost charged by Plumber B.

Setting Cost_A equal to Cost_B and solving for h:

Callout_A + HourlyRate_A * h = Callout_B + HourlyRate_B * h

Substituting the given values:

30 + 18 * h = 45 + 15 * h

Subtracting 15 * h from both sides:

30 + 3 * h = 45

Subtracting 30 from both sides:

3 * h = 15

Dividing both sides by 3:

h = 5.

Answered question "Plumber A charges $30 for the callout and $18 hour Plumber B charges $45 for the callout and $15 per hour. Find the number of hours when the two plumbers charge the same amount of money.

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The values of a and b are -2 and 22, respectively, for x uniformly distributed over (-2, 22).

To find the values of a and b for x uniformly distributed over (a, b) with E(x) = 10 and Var(x) = 48, follow these steps:

1. Recall the formula for the expected value of a uniformly distributed variable, E(x) = (a + b) / 2.
2. Plug in the given E(x) = 10: 10 = (a + b) / 2.
3. Solve for (a + b): a + b = 20.

4. Recall the formula for the variance of a uniformly distributed variable, Var(x) = (b - a)^2 / 12.
5. Plug in the given Var(x) = 48: 48 = (b - a)^2 / 12.
6. Solve for (b - a)^2: (b - a)^2 = 576.

7. Take the square root of both sides: b - a = 24.

Now you have a system of equations:
a + b = 20
b - a = 24

8. Solve the system of equations:
  Add the two equations: 2b = 44.
  Divide by 2: b = 22.
  Substitute b back into the first equation: a + 22 = 20.
  Solve for a: a = -2.

So, the values of a and b are -2 and 22, respectively, for x uniformly distributed over (-2, 22).

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The 95% confidence interval for the slope is a) y = 0.720x - 91.030, [0.628, 0.812]

The equation of the least squares regression line can be found using the coefficients given in the summary.

The equation is y = 0.720x - 91.030.
To find the 95% confidence interval for the slope, we can use the t-value and standard error given in the summary.

Using a t-distribution with n-2 degrees of freedom (where n is the sample size), we can find the critical value for a 95% confidence interval.
In this case,

The t-value is 15.929 and the standard error is 0.045. With a sample size of n=1 (since we only have one predictor variable), the degrees of freedom are n-2 = -1, which is not possible.

Therefore,

We cannot calculate a valid confidence interval for the slope.
This equation represents the least squares regression line, and the 95% confidence interval for the slope is [0.628, 0.812].
The correct answer is a) y = 0.720x - 91.030, [0.628, 0.812]

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The marginal cost function c′ave(x) is -3000/x^2 - 0.05.

To find the marginal average cost function, c′ave(x), given the cost function c(x) = 3000 + 10x - 0.05x^2, we first need to find the average cost function and then its derivative. Here's a step-by-step explanation:

1. Find the average cost function, c_ave(x):
c_ave(x) = c(x) / x = (3000 + 10x - 0.05x^2) / x

2. Simplify the average cost function:
c_ave(x) = 3000/x + 10 - 0.05x

3. Differentiate the average cost function with respect to x to find the marginal cost function, c′ave(x):
c′ave(x) = d(c_ave(x)) / dx = d(3000/x + 10 - 0.05x) / dx

4. Differentiate each term individually:
d(3000/x) / dx = -3000/x^2
d(10) / dx = 0
d(-0.05x) / dx = -0.05

5. Combine the derivatives to get the marginal average cost function, c′ave(x):
c′ave(x) = -3000/x^2 - 0.05

So, the marginal average cost function c′ave(x) is -3000/x^2 - 0.05.

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The marginal rate of technical substitution between x2 and x1 is -1/3.

a. The expression for the marginal product of x1 at the point (x1, x2) is derived by taking the partial derivative of the production function f(x1, x2) with respect to x1:

MP_x1 = ∂(x1^1/2 * x2^3/2) / ∂x1 = (1/2) * x1^(-1/2) * x2^(3/2)

b. The marginal product of x1 does not increase for small increases in x1, holding x2 fixed. This is because the exponent of x1 in the marginal product expression is negative (-1/2), which means that as x1 increases, the marginal product of x1 will decrease.

c. An increase in the amount of x2 will increase the marginal product of x1. This can be observed in the marginal product expression for x1: as x2 increases (given x2^(3/2)), the value of MP_x1 will also increase.

d. The marginal rate of technical substitution (MRTS) between x2 and x1 is the ratio of the marginal product of x1 to the marginal product of x2:

First, calculate the marginal product of x2:
MP_ x2= ∂(x1^1/2 * x2^3/2) / ∂x2 = x1^(1/2) * (3/2) * x2^(1/2)

Then, calculate the MRTS:
MRTS = - (MP_x1 / MP_x2) = - [(1/2) * x1^(-1/2) * x2^(3/2)] / [x1^(1/2) * (3/2) * x2^(1/2)] = - (1/3)

Therefore ,the marginal rate of technical substitution between x2 and x1 is -1/3.

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Using the compounding calculator we know that after 9 years the amount left to return will be $6,607.

Compound interest, also known as interest on principal and interest, is the practice of adding interest to the principal amount of a loan or deposit.

It occurs when interest is reinvested, or added to the loaned capital rather than paid out, or when the borrower is required to pay it so that interest is generated the next period on the principal amount plus any accumulated interest.

In finance and economics, compound interest is common.

So, the loan is $2000.

The loan rate is 13.5% compounding quarterly.

Time is of full 9 years.

Then, the amount to be paid after 9 years will be:

(Refer to the compounding chart below)

$6,606.76

Rounding off: $6,607

Therefore, using the compounding calculator we know that after 9 years the amount left to return will be $6,607.

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The given sequence is an = n/(42+3n).

To determine whether it converges or diverges, we can use the limit comparison test. Taking the limit as n approaches infinity of the ratio of an and n, we get lim n→[infinity] an/n = lim n→[infinity] n/(n(42/ n+3)) = lim n→[infinity] 1/(42/ n+3) = 1/42.

Since the limit is a finite positive number, the sequence converges. To find the limit, we can use the fact that the sequence converges to the same limit as an = 1/(42/ n+3).

Taking the limit as n approaches infinity of 1/(42/ n+3), we get lim n→[infinity] 1/(42/ n+3) = 0. Therefore, the limit of the given sequence is 0.

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Complet question:

determine whether the sequence converges or diverges. if it converges, find the limit. (if an answer does not exist, enter dne.) an =  n/(42+3n) lim n→[infinity] an =

The given sequence is an = n/(42+3n).

To determine whether it converges or diverges, we can use the limit comparison test. Taking the limit as n approaches infinity of the ratio of an and n, we get lim n→[infinity] an/n = lim n→[infinity] n/(n(42/ n+3)) = lim n→[infinity] 1/(42/ n+3) = 1/42.

Since the limit is a finite positive number, the sequence converges. To find the limit, we can use the fact that the sequence converges to the same limit as an = 1/(42/ n+3).

Taking the limit as n approaches infinity of 1/(42/ n+3), we get lim n→[infinity] 1/(42/ n+3) = 0. Therefore, the limit of the given sequence is 0.

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Complet question:

determine whether the sequence converges or diverges. if it converges, find the limit. (if an answer does not exist, enter dne.) an =  n/(42+3n) lim n→[infinity] an =

The prediction we can make is that there were about 169 principals in attendance at the conference. The answer is D.

A type of ratio known as proportions describes the size of one segment of a group in relation to the size of the group as a whole, or population.

If 80 people represent a certain percentage of the total attendance, then we can use that same percentage to estimate the number of principals in attendance. Specifically:

percentage of principals in exhibit room = 15/80 = 0.1875

percentage of total attendance in exhibit room = 80/900 = 0.0889

If we assume that the percentage of principals in the exhibit room is similar to the percentage of principals in the entire conference, then we can set up the following proportion:

0.1875 / x = 0.0889 / 900

where x represents the total number of principals in attendance.

here, Solve for x, then:

x = 169

Therefore, the prediction we can make is that there were about 169 principals in attendance at the conference. The answer is D.

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By using the Direct Comparison Test, the series Σ (1/n!) from n=0 to infinity converges.

We have to use the Direct Comparison Test to determine the convergence or divergence of the series.

The series in question is:
Σ (1/n!) from n=0 to infinity.

To use the Direct Comparison Test, we need to find another series that we can compare it to.

We will use the series:
Σ (1/2ⁿ) from n=0 to infinity.

Now, let's follow the steps to apply the Direct Comparison Test:

1. Compare the terms of the two series:
For all n ≥ 0, we have 0 ≤ 1/n! ≤ 1/2ⁿ, since n! grows faster than 2ⁿ.

2. Determine the convergence or divergence of the known series:
The series Σ (1/2ⁿ) from n=0 to infinity is a geometric series with a common ratio of 1/2, which is less than 1.

Therefore, the series converges.

3. Apply the Direct Comparison Test:
Since 0 ≤ 1/n! ≤ 1/2ⁿ for all n ≥ 0 and the series Σ (1/2ⁿ) converges, by the Direct Comparison Test, the series Σ (1/n!) from n=0 to infinity also converges.

So, by using the Direct Comparison Test, we've determined that the series Σ (1/n!) from n=0 to infinity converges.

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The sum of the series [tex]\sum_{n=1}^{\infty}a_n[/tex] whose partial sums is sₙ = 4 - 5(0.9)ⁿ is 4.

To calculate the sum of the series whose partial sums are given by sₙ = 4 - 5(0.9)ⁿ, we need to find the limit of the partial sums as n approaches infinity.

First, identify the formula for partial sums sₙ.
The given formula for partial sums is sₙ = 4 - 5(0.9)ⁿ.

Now, find the limit of the partial sums as n approaches infinity.
As n approaches infinity, we want to find the limit of the partial sums:
[tex]\lim_{n \to \infty}[/tex] [4 - 5(0.9)ⁿ].

Now, identify the behavior of the terms as n approaches infinity.
As n approaches infinity, (0.9)ⁿ approaches 0 since 0.9 is between 0 and 1.

Therefore, the second term in the formula (5(0.9)ⁿ) approaches 0.

Substitute the limiting behavior of the terms and simplify.
[tex]\lim_{n \to \infty}[/tex] [4 - 5(0.9)ⁿ] = 4 - 5(0)

Now, calculate the final value.
4 - 5(0) = 4

Thus, the sum of the series is 4.

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In conclusion, the set {0} ∪ {1/n | n∈ℤ} is not an open set.

Explanation:

You are asking whether the set {0} ∪ {1/n | n∈ℤ} is an open set.

Step 1: Define the set
First, let's define the set in question. The set can be written as {0} ∪ {1/n | n∈ℤ, n≠0}, which means the union of two sets: {0} and {1/n | n∈ℤ, n≠0}. The second set contains all the elements of the form 1/n, where n is an integer, and n is not equal to 0.

Step 2: Determine if the set is open
An open set is a set in which for every point x, there exists some ε > 0 such that the open interval (x-ε, x+ε) is entirely contained within the set. Now, let's see if our set meets this criterion.

For any non-zero integer n, the point 1/n is in the set. However, there is no ε > 0 such that the open interval (1/n - ε, 1/n + ε) is entirely contained within the set, since the interval will contain points that are not of the form 1/n. This means that the set is not open, as there is no suitable ε for these points.

Since {0} is a singleton set and singleton sets are always closed, and {1/n | n∈ℤ} is a set of real numbers, the union "{0} u {1/n | n∈ℤ}" is not an open set. This is because it contains points on the boundary (0) as well as points that are not interior points (such as 1 and -1) due to the nature of the set {1/n | n belongs to z}.

In conclusion, the set {0} ∪ {1/n | n∈ℤ} is not an open set.

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Answer: The dimensions of the skating ramp is 324.

Step-by-step explanation: I know people don't like long Answers so I will give you a long one :). The text says "A skating ramp is in shape of a rectangle and has an area of 36 square untied the length of the rectangle is one more than two times". If the ramp is a rectangle then they must have done (9x4=36). But it needs the be triple that so, 9+9+9=27 and 4+4+4=12. Which means 27x12=324 would be the answer.

                                                      :)

The population increases the fastest when the population is half of the carrying capacity, which is 2250.

The Gompertz equation is a mathematical model used to describe population growth. It takes into account the carrying capacity of the environment, which is the maximum number of individuals that can be sustained by the available resources. The equation is P′(t)=0.7ln(P(t)(4500​)/P(t)), where P(t) is the population at time t, and P′(t) is the rate of change of population at time t.

To find when the population increases the fastest, we need to find the value of P that maximizes P′(t). Taking the derivative of P′(t) concerning P and setting it to zero, we get P=4500/e. This means that the population increases the fastest when P=2250, which is half of the carrying capacity.

Intuitively, this makes sense because when the population is small, fewer individuals are competing for resources, which leads to faster growth. As the population approaches the carrying capacity, resources become scarce, which slows down the growth rate. Therefore, the population grows the fastest when it is halfway between the initial population and the carrying capacity.

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