dim light at night make fat mice a study was conducted in which mice that had a dim light on at night 95% confidence interval

A parametric representation using spherical-like coordinates for the upper half of the ellipsoid 4(x₁)² + 9y² + 36z² is given by:

x = 2r cosθ sinφ

y = 3r sinθ sinφ

z = 6r cosφ, where 0 ≤ θ ≤ 2π and 0 ≤ φ ≤ π/2.

We want to find a parametric representation for the upper half of the ellipsoid 4(x₁)² + 9y² + 36z² = 36. To do this, we can use spherical-like coordinates, which are similar to spherical coordinates but with an additional parameter to account for the asymmetry of the ellipsoid.

We start by assuming that the ellipsoid is centered at the origin, so we can write it as:

(x₁/3)² + y²/4 + z²/1 = 1

We can then express x, y, and z in terms of the parameters r, θ, and φ:

x = r cosθ sinφ

y = r sinθ sinφ

z = r cosφ

We can use these equations to find r, θ, and φ in terms of x, y, and z, and substitute into the equation of the ellipsoid to obtain:

[(x₁/3)² + (y/2)² + z²]/1 = 1

Simplifying, we get:

r² = 36/(4 cos²θ sin²φ + 9 sin²θ sin²φ + 36 cos²φ)

We can then use the equations for x, y, and z in terms of r, θ, and φ to obtain the desired parametric representation:

x = 2r cosθ sinφ

y = 3r sinθ sinφ

z = 6r cosφ

We restrict φ to the range 0 ≤ φ ≤ π/2 to obtain only the upper half of the ellipsoid. The range of θ is 0 ≤ θ ≤ 2π, which allows us to cover the entire surface of the ellipsoid.

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The recursive rule for the sequence given is aₙ = aₙ₋₁ + 13.

Given that, a sequence,

position, n = 1 2 3 4 5

term, f(n) = 5 18 31 44 57

We need to write the recursive rule for the sequence,

So,

a₁ = 5, a₂ = 18

18-5 = 13

a₃ = 31, a₄ = 44

44-31 = 13

Therefore,

We see that, the preceding term is 13 less than the succeeding term,

We can write,

aₙ = aₙ₋₁ + 13

Hence, the recursive rule for the sequence given is aₙ = aₙ₋₁ + 13.

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Answer:

To draw a right triangle with a tangent ratio of 3/2 for one of the acute angles, we can choose any angle whose tangent is 3/2. Let's choose the angle θ.

We know that:

tangent ratio = opposite side / adjacent side

So, we can assign any value we want to the adjacent side, and then calculate the opposite side. Let's say the adjacent side is 2 units. Then, the opposite side would be:

opposite side = tangent ratio * adjacent side = (3/2) * 2 = 3

So, the sides of the triangle are:

adjacent side = 2

opposite side = 3

hypotenuse = √(2^2 + 3^2) = √13

We can now use trigonometry to find the measure of the other acute angle. The tangent of an angle is equal to the opposite side over the adjacent side, so we have:

tan(θ) = opposite side / adjacent side

tan(θ) = 3/2

Taking the inverse tangent of both sides, we get:

θ = tan^(-1)(3/2)

θ ≈ 56.3°

So, the other acute angle of the right triangle is approximately 56.3 degrees.

The values of the table which are in ordered pairs of the form (x,y) are

(-4, 15); (0, 7); (3,1); (5, -3); (8, -9). The correct answer is option B.

Choice A sets the values of y with the values of x rather than blending the values of x with the values of y. For case, the primary ordered pair in alternative A is (15, -4), which suggests that the esteem of x is 15 and the value of y is -4, which is the inverse of what is given within the table.

Alternative C too sets the values of x and y inaccurately. For illustration, the primarily requested combine in alternative C is (-4, 0), which suggests that the esteem of x is -4 and the value of y is 0, which isn't adjusted concurring to the table.

Choice D moreover sets the values of x and y within the off-base arrangement. For the case, the primarily ordered combine in choice D is (15, 7), which implies that the value of x is 15 and the esteem of y is 7, which isn't reliable with the table.

Alternative B is the right reply since it sets each esteem of x with its comparing esteem of y. For case, the primary requested match in choice B is (-4, 15), which implies that the esteem of x is -4 and the esteem of y is 15, which is steady with the primary push of the table. 

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The endpoints of a t-distribution with 1% beyond them in each tail if the sample has size n=18 are 2.898 and -2.898.

To find the endpoints of the t-distribution with 1% beyond them in each tail for a sample of size n = 18, we need to find the t-values such that the area under the t-distribution curve beyond those values in each tail is 0.01.

Since the sample size is small (n < 30), we use the t-distribution instead of the normal distribution. The degrees of freedom for the t-distribution is n-1 = 18-1 = 17.

Using a t-table or a calculator, we find the t-value that has an area of 0.005 to the right of it in the t-distribution with 17 degrees of freedom:

[tex]t_0_._0_0_5_,_1_7[/tex]= 2.898

[tex]t_0_._0_0_5_,_1_7[/tex] = 2.898

To find the left endpoint, we take the negative of the right endpoint:

−2.898

−2.898

Therefore, the endpoints of the t-distribution with 1% beyond them in each tail for a sample of size n=18 are -2.898 and 2.898 (rounded to three decimal places).

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If x represents the smaller of the two numbers, then the larger number can be represented as x + 56 (since the difference between the two numbers is 56).

Large numbers are numbers that are larger than those used in everyday life, such as simple calculations or currency operations, and often appear in fields such as mathematics, cosmology, cryptography, and similar mathematical machine. These are usually good numbers or more likely really good numbers, but there may be other numbers in other situations.

Given that the difference between the two numbers is 56, and x represents the smaller number, the larger number can be represented as x + 56.

This is because the larger number is 56 units greater than the smaller one (x). So, the larger number is given by the expression: x + 56.

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To be categorized as unemployed, a person has to be without a process, presently available to work, and actively seeking out work within the previous 4 weeks.

Unemployment is a time period regarding people who are employable and actively looking for a process but are not able to discover a process. blanketed in this institution are the ones people in the group of workers who are working but no longer have the precise job.

The situation of now not having a task but being a member of the labor pressure. To be considered unemployed, someone must be jobless but actively trying to find a task by having searched within the last 4 weeks.

Hence, To be categorized as unemployed, a person has to be without a process, presently available to work, and actively seeking out work within the previous 4 weeks.

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complete question:

how do economists define unemployed workers? group of answer choices although currently working, they are not happy with their current job working on contract for a limited time not currently working not currently working but actively searching for work

Using the quadratic formula to find the solutions, we get x = (-10 ± √40)/6

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

3x² + 10x + 5=0

Using the quadratic formula, we have

x = (-10 ± √(10² - 4 * 3 * 5))/(2 * 3)

Evaluate the products and the exponents

So, we have

x = (-10 ± √40)/6

Hence, the solution is x = (-10 ± √40)/6

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The firm's after-tax cost of debt on the bond will be 11.90% .

To calculate the firm's after-tax cost of debt on the bond, we need to follow these steps:

1. Determine the bond's yield to maturity (YTM) given its price, par value, annual interest, and time to maturity.
2. Calculate the bond's pre-tax cost of debt.
3. Adjust for flotation costs.
4. Apply the tax bracket to find the after-tax cost of debt.

1. The bond's YTM can be calculated using a financial calculator or software. Given the bond's price of $935, par value of $1,000, annual interest of 12% ($120), and a maturity of 0 years, the YTM is approximately 12.83%.

2. The pre-tax cost of debt is the YTM, which is 12.83%.

3. Flotation costs are 13% of the bond's market value ($935). Therefore, flotation costs are $121.55 ($935 * 0.13). The adjusted bond price, taking into account flotation costs, is $813.45 ($935 - $121.55). To find the adjusted YTM, we can use the adjusted bond price, keeping other factors constant. The adjusted YTM is approximately 14.87%.

4. The company is in a 20% tax bracket. To find the after-tax cost of debt, we need to apply the tax bracket: After-tax cost of debt = Adjusted YTM * (1 - Tax Rate) = 14.87% * (1 - 0.2) = 14.87% * 0.8 = 11.90%.

The firm's after-tax cost of debt on the bond will be 11.90% (rounded to two decimal places).

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The value of the integral ∫^2_0 t^2d(t - 4) equals to 8/3 (option d). To get the value of the integral, we will perform the following steps:

1. Rewrite the integral in terms of dt using the substitution method.
2. Evaluate the integral.
3. Substitute the limits of integration and calculate the value.
Step 1: Substitution
Let u = t - 4, so du = dt.
When t = 0, u = -4. When t = 2, u = -2.
Now we have: ∫^(-2)_{-4} (u + 4)^2 du.
Step 2: Evaluate the integral
We need to integrate (u + 4)^2 with respect to u.
∫ (u + 4)^2 du = (1/3)(u + 4)^3 + C, where C is the constant of integration.
Step 3: Substitute the limits of integration and calculate the value
[(1/3)(-2 + 4)^3 - (1/3)(-4 + 4)^3] = (1/3)(2^3) = 8/3.
The value of the integral ∫^2_0 t^2d(t - 4) equals to 8/3 (option d).

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Answer:

youre in high school and ure asking this question pls go back to elementaary and think of what u js wrote

Step-by-step explanation:

The value of the variable x is 8

To determine the value, we have to take note that the sum of the angles in polygon is determined with the formula

(n -2 )180

Such that the variable, 'n' is the number of sides of the polygon

From the information given, we have that;

n = 4

Substitute the values

(4-2) 180 = 360

Now, equate the measures to the angle, we have;

9x + 5 + 14x + 3 + 15x -11 + 7x + 3 = 360

collect the like terms

9x + 14x + 15x + 7x = 360

Add the like terms

45x = 360

Make 'x' the subject of formula

x = 8

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The Ratio Test shows that the series [tex]\sum_{n=0}^{\infty} \frac{2^n}{n!}[/tex] converges absolutely.

We must determine the maximum ratio of successive terms before we can apply the ratio test to the series 2n/n!

[tex]\lim_{n \to \infty} \left| \frac{2(n+1)/(n+1)!}{2n/n!} \right|[/tex]

Simplifying the expression, we get:

[tex]\lim_{n \to \infty} \left| \frac{2(n+1)/(n+1)(n!)}{2n/n!} \right|[/tex]

[tex]\lim_{n \to \infty} \left| \frac{2(n+1)}{(n+1)} \right| \\[/tex]

[tex]\lim_{n \to \infty} 2 \\[/tex]

The Ratio Test informs us that the series absolutely converges because the limit is a positive finite constant (2). The Ratio Test, which compares the growth rates of successive terms, is an effective method for examining the convergence of series with positive terms. The series absolutely converges if the limit of the ratio of consecutive terms is smaller than 1, and it diverges if it is bigger than 1.

The Ratio Test is inconclusive if the limit is exactly 1 or if it does not exist, in which case we may need to use additional convergence tests. In this instance, the Ratio Test informs us that the series definitely converges, hence we do not need to take into account any other tests.

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An equation represents the slope-intercept form of the given line is y= 1/2 x+8. Therefore, option D is the correct answer.

Given that, y-intercept = (0, 8) and slope = 1/2.

The general equation of a straight line is y=mx+c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis.

Substitute m=1/2 and c=8 in y=mx+c, we get

y= 1/2 x+8

Therefore, option D is the correct answer.

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For the first series, n² (n=1 to ∞), it is a divergent series since it is a sum of squares of positive integers, which will grow without bound.

Now, let's analyze the series:

vn (n² + n + 3) (n=1 to ∞).

As n becomes larger, the dominant term is n². Since the original series n² is divergent, the series vn (n² + n + 3) will also be divergent.

For the second series:

3n (n=1 to ∞), it is a divergent series as it is a sum of positive integer multiples of 3, which will also grow without bound.

To analyze the series T + Vn (3n + n²) (n=1 to ∞), the dominant term as n becomes larger is n². Since the series 3n is divergent, it doesn't provide enough information to determine the convergence or divergence of the series T + Vn (3n + n²). Further analysis would be needed to make that determination.

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The equation that represents this situation, if k is the number of hours Keith worked is C. k + 3 = 12

A statement that affirms the equivalence of two expressions that are joined by the equals sign "=" is known mathematically as an equation. If Jason worked 12 hours, 3 more than Keith did, and k is the amount of hours Keith worked, then k + 3 = 12 is the proper equation to reflect the circumstance.

According to this calculation of the equation, the total number of hours Keith worked (k) plus the additional three hours equals 12, which agrees with the fact that Jason put in three more hours of labour than Keith did and worked for a total of 12 hours.

Complete Question:

Jason worked 3 more hours than Keith. Jason worked 12 hours. Which equation represents this situation, if k is the number of hours Keith worked?

A. 12 + k = 3

B. 12k = 3

C. k + 3 = 12

D. 3k = 12

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The sum of two rational numbers with different signs is positive whilst the absolute value of the variety with the larger absolute value is greater than the absolute value of the number with the smaller absolute value.

In different meaning, the bigger positive rational number is greater than absolutely the value of the smaller negative rational number.

For Example, if we add the rational figures together also the -2/ 3 and4/5, we have got

-2/3 + 4/5 = (-10/15) + (12/15) = 2/15

In this example, the sum is positive due to the fact absolutely the value of 4/5 (0.8) is greater than the absolute value of -2/3 (0.666...).

Therefore, the larger positive rational number (4/five) is greater than the absolute value of the smaller negative rational number (-2/3).

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The angle that corresponds to angle D is O.

We have,

If you rotate an object or a coordinate system by 180 degrees, you are flipping it upside down or reversing it.

If you have a coordinate system with the x-axis running from left to right and the y-axis running from bottom to top, rotating it by 180 degrees would cause the x-axis to now run from right to left and the y-axis to run from top to bottom.

Now,

Figure ABCDE is the result of a 180° rotation of figure LMNOP about point F.

So,

The angle that corresponds to angle A is L.

The angle that corresponds to angle B is M.

The angle that corresponds to angle C is N.

The angle that corresponds to angle D is O.

The angle that corresponds to angle E is P.

Thus,

The angle that corresponds to angle D is O.

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Answer:

4 muffins to each friend

Step-by-step explanation:

72-60=3x

12=3x

4=x

Therefore, the average of the squared distance between the origin and points in the solid cylinder D is 1/2.

The average of the squared distance between the origin and points in the solid cylinder D, we need to integrate the squared distance over the volume of the cylinder and then divide by the volume. The squared distance between the origin and a point (x, y, z) is given by:

d² = x² + y² + z²

The volume of the cylinder is given by:

V = πr²h = π(5²)(2) = 50π

The integral of the squared distance over the volume of the cylinder is:

∭d² dV = ∫₀²π ∫₀⁵ ∫₀² (x² + y² + z²) dz dx dy

Integral by integrating with respect to z first:

∫₀² (x² + y² + z²) dz = x² + y² + 2z³/3 evaluated from z = 0 to z = 2

= x² + y² + (16/3)

Expression back into the integral and integrating with respect to x and y gives:

∭d² dV = ∫₀²π ∫₀⁵ (x² + y² + (16/3)) dx dy

= ∫₀²π [(x³/3) + xy² + (16/3)x] evaluated from x = 0 to x = 5 dy

= ∫₀²π [(125/3) + 5y² + (80/3)] dy

= [(125/3)y + (5/3)y³ + (80/3)y] evaluated from y = 0 to y = √(25-x²)

= [(125/3)√(25-x²) + (5/3)(25-x²)√(25-x²) + (80/3)√(25-x²)] evaluated from x = 0 to x = 5

∭d² dV = 25π

Dividing by the volume of the cylinder gives the average of the squared distance:

(1/V) ∭d² dV = (1/50π) (25π) = 1/2

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Correct Question:

Find the average of the squared distance between the origin and points in the solid cylinder D = {(x,y,z): x² + y² ≤ 25, 0 ≤ z ≤ 2}. The average of the squared distance is (Simplify your answer. Type an integer or a fraction. )

Using the distributive property, the expanded form of (−1/4)(−8x+12y) is c) 2x - 3y.

The distributive property states that when you multiply a number or a variable expression by a sum or a difference, you can distribute the multiplication over each term within the parentheses.

So, to expand the expression (−1/4)(−8x+12y), we can apply the distributive property by multiplying -1/4 to each term inside the parentheses:

(−1/4)(−8x+12y) = (−1/4) × (−8x) + (−1/4) × (12y)

= (1/4) × 8x − (1/3) × 12y

= 2x − 3y

Therefore, the expanded form of (−1/4)(−8x+12y) is 2x − 3y. Hence, the correct answer is (c) 2x-3y.

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When a $10 check written on the First National Bank is deposited in an account at the Second National Bank, the correct option is C) the liabilities of the Second National Bank decrease by $10. This is because the Second National Bank's liability to the account holder increases by $10, while its liability to the First National Bank decreases by $10. However, none of the other options are correct.

Option A) is incorrect because the liabilities of the First National Bank do not decrease as a result of the check being deposited in the Second National Bank. The liability of the First National Bank to the account holder is transferred to the Second National Bank.

Option B) is incorrect because the reserves of the First National Bank do not increase by $10 when the check is deposited in the Second National Bank. Reserves refer to the amount of money that banks hold in order to meet their depositors' demands for cash withdrawals. When the check is deposited in the Second National Bank, the reserves of the First National Bank remain the same.

Option D) is incorrect because the assets of the Second National Bank do not decrease by $10 when the check is deposited. The asset of the Second National Bank increases by $10 due to the deposit of the check.

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The producers' surplus if the market price is set at $8/unit is $21000

Given that

Price, p = 36 + 2.8x

The quantity  function is

q = 100x

So, the revenue at $8/unit is

R = 100x * 8

R = 800x

The total cost is calculated as

T(x) = (36 + 2.8x) * 100x

By calculation, we have the producers' surplus function to be

P = (36 + 2.8x) * 100x - 800x

Differentiate and set to 0

-560x - 2800 = 0

So, we have

x = 5

Recall that

P = (36 + 2.8x) * 100x - 800x

So, we have

P = (36 + 2.8 * 5) * 100 * 5 - 800 * 5

P = 21000

Hence, the producers' surplus is 21000

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The number of different subsets of $\{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12\}$  is 13.

We are given that;

Subset = $\{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12\}$

Now,

To apply the principle of inclusion-exclusion, we need to find the number of elements in each set and each intersection of sets. We have:

∣A∣=∣B∣=∣C∣=6

∣A∩B∣=∣A∩C∣=∣B∩C∣=2

∣A∩B∩C∣=1

Using the principle of inclusion-exclusion, we get:

∣A∪B∪C∣=∣A∣+∣B∣+∣C∣−∣A∩B∣−∣A∩C∣−∣B∩C∣+∣A∩B∩C∣

Plugging in the values we have found above, we get:

∣A∪B∪C∣=6+6+6−2−2−2+1=13

Therefore, by the subset the answer will be 13.

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The equation to find the volume of the box is w³ + 2w² - 15w - 1836 = 0.

The length of a box is 5 inches more than the width. The height is 3 inches less than the width.

The box is a rectangular prism. Therefore,

volume of the box = lwh

where

Therefore, the equation that can be used to find the width in inches of the box when the total volume is 1836 cubic inches can be calculated as follows:

l = 5 + w

h = w - 3

Therefore,

1836 = (5 + w)(w - 3)(w)

1836 = (5w - 15 + w² - 3w)w

1836 =(w² + 2w - 15)w

1836 = w³ + 2w² - 15w

w³ + 2w² - 15w - 1836 = 0

Hence, the equation is w³ + 2w² - 15w - 1836 = 0

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Answer: t [tex]\leq[/tex] 54

Step-by-step explanation: Normally, she trains for 90 minutes, so we need to figure out what 60% of 90 is.

90 x .60 = 54.

SO then we can make the inequality, t [tex]\leq[/tex] 54

The probability of either event A or event B occurring is 1 or 100%, since they are the only two possible outcomes. The probability of event B occurring alone is also 1 or 100%.

To find the probability that either event A or event B will occur, we can add their individual probabilities and then subtract the probability that both events occur, since we don't want to count this intersection twice. So, we have

P(A or B) = P(A) + P(B) - P(A and B)

Plugging in the given values

P(A or B) = 6/20 + 20/20 - 6/20 = 20/20 = 1

So the probability that either event A or event B will occur is 1 or 100%.

To find the probability of event B, we simply use the given probability

P(B) = 20/20 = 1

So the probability of event B is also 1 or 100%.

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Answer:

its 0.50

Step-by-step explanation:

The value of the probability of selecting gray marble is,

⇒ 4 / 9

We have to given that;

A bag contains 3 black, 2 white marbles, and 4 gray marbles.

And,  A marble Is replaced before picking a second marble.

Hence, We get;

Total marbles = 3 + 2 + 4

                      = 9

And, Number of gray marbles = 4

Thus, The value of the probability of selecting gray marble is,

⇒ 4 / 9

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