what is the difference between the pearson correlation and the spearman correlation? a. the pearson correlation uses t statistics, and the spearman correlation uses f-ratios. b. the pearson correlation is used on samples larger than 30, and the spearman correlation is used on samples smaller than 29. c. the spearman correlation is the same as the pearson correlation, but it is used on data from an ordinal scale. d. the spearman correlation is used when the sample variance is unusually high.

Every year, 1800 units crossover point. The process focus is less expensive for volumes over 1800.

When all tax credits have been used up by a limited partnership and the limited partners are left with a tax burden, that moment is known as the crossover point.

When both projects have positive values, the crossover point is formed by the intersection of two IRR curves.

The weighted average cost of capital, also known as the crossover rate, is the rate of return at which the net present values (NPV) of two projects are equal.

The rate of return at which the net present value profiles of two projects cross each other is what this term denotes.

So, annual crossover sales are 1800 units.

Process emphasis is less expensive and less important for volumes under 1800 units; repeated manufacturing concentration is less expensive and less important for volumes exceeding 1800 units.

Fixed cost ÷ variable cost

$90000÷50 =$1800

$9,000÷5=$1800

Therefore, every year, 1800 units cross over. The process focus is less expensive for volumes over 1800.

Know more about the crossover point here:

https://brainly.com/question/13845784

#SPJ4

Correct question:

A product is currently made in a process-focused shop, where fixed costs are $9,000 per year and variable costs are $50 per unit. The firm is considering a fundamental shift in process, to repetitive manufacturing. The new process would have fixed costs of $90,000, and variable costs of $5. The cross over is at 1800 units annually. for volumes over 1800, the process focus is cheaper.

Answer:

(−8x+1)(x+2)

Step-by-step explanation:

−8x^2−15x+2

−8x^2−15x+2

=(−8x+1)(x+2)

Answer:

(−8x+1)(x+2) Hope this helps!

Answer:

(-8x-1)(x-2)

Step-by-step explanation:

\(-8x^{2} +15x + 2=-8x^{2} +16x - x + 2\)

-8x(x-2)-1(x-2)= (-8x-1)(x-2)

Answer:

sdjjjjgffd

Step-by-step explanation:

Given that the pdf of a continuous random variable 0 ≤ X ≤ 2 is f(x). The value of f(x) = kx (2 - x), where k is a positive constant.(a) Determining the expected value of X The expected value of X is given by; E(X) = ∫xf(x) dx = ∫xkx(2 - x) dx Taking the limits of integration.

as 0 and 2 we get,E(X) = \(∫xkx(2 - x) dx = k ∫(2x^2 - x^3) dx [Limits of integration: 0 to 2]= k [(2x^3 / 3) - (x^4 / 4)] [Limits of integration: 0 to 2]= k [(2(2)^3 / 3) - (2^4 / 4)] - k [(2(0)^3 / 3) - (0^4 / 4)]= k [(16 / 3) - (4)] = - (8 / 3) k2.\\\)\(:σ² =\\\)(c) Determining the probability of 1 ≤ X ≤ 2 and that of X = 1Let's calculate the probability o\(f 1 ≤ X ≤ 2;P(1 ≤ X ≤ 2) = ∫f(x) dx\)[Limits of integration: 1 to 2]= ∫kx(2 - x) dx [Limits of integration:\(1 to 2]= k ∫(2x - x^2)\)dx [Limits of integration: 1 to 2]= \(k [(2(x^2 / 2) - (x^3 / 3)) - (2(1^2 / 2) - (1^3 / 3))]= k [(2 - (8 / 3)) - (1 - (1 / 3))]= k [(2 / 3).\)

The value of k can be determined by using the fact that the total area under the curve of the pdf f(x) from 0 to 2 must be equal to 1.

To know more about continuous visit;

https://brainly.com/question/31523914

#SPJ11

Answer: I believe the answer is 5

Answer:

in the first question you use the cosine rule to solve the problem since you have one angle and two sides of the triangle and the rules states thus x square is equal to 5 squid + 8 squared -2 * 5 * 8 x cos 60

Answer:

Bzbsjshhd

Xbdbdhs

Step-by-step explanation:

We save $3.5 each month and in total $42 by giving the annual membership fees.

So,

Then, Monthly pay for a whole year:

Now,

Saving each month by giving the annual fees:
$42 ÷ 12 = $3.5

Therefore, we save $3.5 each month by giving the annual fees.

Know more about mathematics operations here:

https://brainly.com/question/27985272

#SPJ1

I think its a is one of them, im not completely sure tho

Step-by-step explanation:

Answer:

13 full rows

Step-by-step explanation:

You would divide the 8 bags by 3/5 (the amount of soil it takes for a row) in order to get 13.3 continuing, but because the .3 isn't a whole row, you wouldn't count it.

Answer:

12.5

Step-by-step explanation:

43 ¾ ÷ 3½ = 12.5

glad to help

The constant charge for each minute used is $0.02. It means each minute used cost $0.02.To summarize,The constant charge for each minute used is $0.02.

The constant charge for each minute used can be determined through solving the given problem statement.According to the problem statement,The total cost for 100 minutes in January was $57The total cost for 150 minutes in February was $58Therefore, the difference in the number of minutes used is (150 - 100) = 50The difference in the total cost is (58 - 57) = 1To calculate the constant charge for each minute, we divide the difference in cost by the difference in the number of minutes used:$1 ÷ 50 = $0.02Therefore, the constant charge for each minute used is $0.02. It means each minute used cost $0.02.To summarize,The constant charge for each minute used is $0.02.

Learn more about constant charge here:

https://brainly.com/question/31604460

#SPJ11

Answer:

684

Step-by-step explanation:

Answer:

(9)(3)

Step-by-step explanation:

expression shows each factor rounded to the nearest whole number?

Answer:

(9) (3)

Step-by-step explanation:

I took the test it’s that

Line perpendicular to a given line is = 1/m

To find m, use m =y2-y1/x2-x1 formula

m = (8-(-3))/(-7-4)

m = 11/-11,

m = -1

Use y= mx+c to find equation of line

Plug in a pair of values,

-3= -1(4)+ c

c= 1

Thus, equation is:

y = -x+1

Equation of line perpendicular to this line is:

y= x+1

Hope it helps :)

Pls mark it as Brainliest :)

Answer:

False

Step-by-step explanation:

5x+3y =-4

Substitute the point into the equation and see if it is true

5(4) +3(6) = -4

20 +18 = -4

38 = -4

This is false so the point is not a solution

Answer:

No.

Step-by-step explanation:

5x + 3y = -4

For (4, 6) to be a solution, 4 must be put in for x and 6 for y and the solution must be -4.

(5 * 4) + (3 * 6) = 20 + 18 = 38

Since 38 is NOT equal to -4, (4, 6) is not a solution.

Hope this helps!

Answer:

\( ➜- 8 - x + x = x - 4x + x\)

\( ➜- 8 = - 2x\)

\( ➜- \frac{8}{ - 2} = \frac{ - 2x}{2} \)

\(➜x=4\)

Answer:

42

Step-by-step explanation:

28/2 = 14

14 x 3 = 42

Answer:

Step-by-step explanation:

8d+2d+6d+9-6d = 0

First, combine like terms, so it would become;

10d+9 = 0

Then, separate anything without a variable;

10d = -9

Then you divide;

d= -0.9

Answer:

10d + 9 = 0

Step-by-step explanation:

Simple explanation:

1.  8d + 2d + 6d + 9 - 6d = 0

2. 16d + 9 - 6d = 0

3. Ans: 10d + 9 = 0

Thorough explanation

1. Solve the equation using BIMDAS OR BEDMAS - whatever acronym you were taught

2. Since there are addition and subtraction in this equation we need to solve it from left to right.

3. Re-arrange the equation by putting like terms together - if that makes sense:

So 8d + 2d + 6d + 9 - 6d = 0

Becomes  8d + 2d + 6d - 6d + 9 = 0

4. Then you simply simplify the equation (Remember, go from left to right)

5. (8+2+6)d - 6d + 9 = 0

6. 16d - 6d + 9 = 0

7. (16-6)d + 9 = 0

8. Ans: 10d + 9 = 0

You can leave it at here because you only need to solve the equation. However, if the question says to "solve for d" (which is not the question being asked rn), then take 9 from both sides: 10d + 9 - 9 = 0 - 9

Which gives you: 10d = -9

Then divide by 10

                         10d/10= -9/10

             Ans:            d = -9/10

d would equal negative nine over ten

Answer:

The answer is 8.30

Step-by-step explanation:

Using cos 41 = x/11

x = cos 41 × 11

x = 8.30

The expected value of a ticket in the given lottery game is -$0.60, indicating that, on average, a person can expect to lose $0.60 per ticket.

To calculate the expected value of a ticket, we need to multiply the value of each prize by its respective probability and sum them up.

For the grand prize of $4 million, the probability of winning is 1 divided by the total number of tickets sold, which is 1/3.5 million. Therefore, the contribution to the expected value from the grand prize is (1/3.5 million) * $4 million.

For the second prize of $30, there are 10,000 winners out of 3.5 million tickets sold, giving a probability of 10,000/3.5 million. The contribution from the second prize is (10,000/3.5 million) * $30.

Similarly, for the third prize of $5, there are 50,000 winners out of 3.5 million tickets sold, giving a probability of 50,000/3.5 million. The contribution from the third prize is (50,000/3.5 million) * $5.

To calculate the expected value, we sum up the contributions from each prize and subtract the cost of the ticket, which is $2.

The result is the expected value of -$0.60, indicating an average loss of $0.60 per ticket.

To know more about probability visit:

brainly.com/question/31828911

#SPJ11

Answer:

Consecutive odd numbers will be 11 and 13.

Step-by-step explanation:

Let the two consecutive odd integers are n and (n + 2).

From the given question,

Sum between twice the smallest and the biggest is 35.

Since, smallest number is 'n' and biggest is (n + 2)

Therefore equation will be,

2n + (n + 2) = 35

(2n + n) + 2 = 35

3n + 2 = 35

3n = 33

n = 11

And (n + 2) = 13

Consecutive odd numbers will be,

11, 13

The minimum surface area of a rectangular box with a square base is 300 square inches.

Surface area is the amount of space on the outside of a three-dimensional form. The surface area of a solid item is the total area that the object's surface occupies.

The mathematical definition of surface area in the presence of curved surfaces is significantly more involved than the definition of arc length for one-dimensional curves or surface area for polyhedra , where the surface area is the sum of the areas of its faces. Smooth surfaces, such as spheres, are ascribed surface area through their representation as parametric surfaces.

The volume of a rectangular box with a square base, an open-top is 500 cubic inch

So, V=lbh

500 inch³=lbh

Also, given that base is a square, so l=b

h= 500 inch³/lb

h=500 inch³/l²

Now, Surface area(A)= Area of base+ Area of 4 walls

=l²+4lh

=l²+4l(500/l²

=l²+(2000/l)

To minimize the surface area, differentiate it with respect to l.

A'(l)=d/dl(l²+(2000/l))

=2l-(2000/l²)

=(2l³-2000)/l²

Substitute A'(l)=0 to obtain the critical point

(2l³-2000)/l²=0

2l³-2000=0

2l³=2000

l³=1000

l=10

Again differentiating A'(l) to confirm the minimum value at l=10

A"(l)=d/dl((2l³-2000)/l²)

A"(l)=2+(4000/10³)

A"(10)=2+(4000/10³)

A"(10)=6>0

Thus, the required surface area is,

Surface area=l²+(2000/l)

=10²+(2000/l)

=300

Therefore,  the minimum surface area of a rectangular box is 300 square inches.

To know more about surface area, visit:

https://brainly.com/question/2835293

#SPJ4

The value of y obtained after solving the given equation will be equal to 11/3 or 3 2/3.

Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.

This relationship is illustrated by the left and right expressions being equal. The left-hand side equals the right-hand side is a basic, straightforward equation.

As per the given equation in the question,

3/4y + 1/2 = 3 1/4

Firstly, write the equation in a simplified way,

3/4y + 1/2 = 13/4

3/4y = 13/4 - 1/2

3/4y = (13 - 2)/4

3/4y = 11/4

Now, solve the equation for y,

y = (11 × 4)/(4 × 3)

y = 11/3

In mixed fraction form, it can be written as 3 2/3.

To know more about equation:

https://brainly.com/question/29657983

#SPJ1

Answer: angleAOB = 40°

Step-by-step explanation: Drawing these angles, we see that angle AOC is the sum of angle AOB and angle BOC, so:

angleAOC = angleAOB + angleBOC

108 = 3x + 4 + 8x - 28

108 + 24 = 11x

11x = 132

x = 12

Knowing x, to find angleAOB, just substitute and calculate:

angleAOB = 3x+4

angleAOB = 3.12 + 4

angleAOB = 40°

The angle AOB is 40°.

It is incorrect to say that Scott leaves at 7:35 am each time. Instead, the probability of Scott leaving at any minute between 7:30 am and 7:35 am is the same (0.1).

Based on the information given, it seems like you are referring to a situation where Scott leaves at a random time between 7:30 am and 7:35 am, and the distribution of this departure time is uniform.

In a uniform distribution, the probability of an event occurring within a certain range is evenly spread out. In this case, the range is from 7:30 am to 7:35 am, which is a 5-minute interval.

Since there are 10 minutes in total within this interval (from 7:30 am to 7:35 am), and the proportion of each minute is 1 divided by 10 (0.1), the probability of Scott leaving at any given minute is 0.1.

Therefore, it is incorrect to say that Scott leaves at 7:35 am each time. Instead, the probability of Scott leaving at any minute between 7:30 am and 7:35 am is the same (0.1).

Learn more about probability from the given link;

https://brainly.com/question/31828911

#SPJ11

Answer:

2x=10

x=10/2

x=5

-3x=21

x=21/3

x=7

Step-by-step explanation:

the next two I don't know

(a) tangent line to the graph of f(x) = x^3 at the point (4,2).

(b) equation of the tangent line to the graph of f(x) = x^2 - x at the point (4,12).

(a) To find the equation of the tangent line to the graph of f(x) = x^3 at the point (4,2), we need to find the slope of the tangent line at that point. We can do this by taking the derivative of f(x) with respect to x and evaluating it at x = 4. The derivative of f(x) = x^3 is f'(x) = 3x^2. Evaluating f'(x) at x = 4 gives us the slope of the tangent line. Once we have the slope, we can use the point-slope form of a linear equation to write the equation of the tangent line.

(b) Similarly, to find the equation of the tangent line to the graph of f(x) = x^2 - x at the point (4,12), we differentiate f(x) to find the derivative f'(x). The derivative of f(x) = x^2 - x is f'(x) = 2x - 1. Evaluating f'(x) at x = 4 gives us the slope of the tangent line. Using the point-slope form, we can write the equation of the tangent line.

In both cases, the equations of the tangent lines will be in the form y = mx + b, where m is the slope and b is the y-intercept.

Learn more about line tangent: brainly.com/question/30162650

#SPJ11

a) i.  the probability of two rainy days is 0.2 * 0.85 = 0.17.

   ii. The total probability of having exactly one rainy day is the sum of    these two probabilities is  0.18.

   iii. probability of having At least one dry day is 0.83.

b)i. The probability of having Three rainy days is 0.1447.

ii. The probability of having Exactly one dry day is 0.1881

iii. The probability of having At most two rainy days is 0.35

a) On two consecutive days, the probability of having:

i. Two rainy days: The probability of two rainy days can be found by multiplying the probabilities of rain on each day, given that the previous day was rainy. In this case, the probability of two rainy days is 0.2 * 0.85 = 0.17.

ii. Exactly one rainy day: There are two ways to have exactly one rainy day in two consecutive days: either the first day is rainy and the second day is dry, or the first day is dry and the second day is rainy. The total probability of having exactly one rainy day is the sum of these two probabilities, which can be calculated as:

P(rainy day first) * P(dry day second) + P(dry day first) * P(rainy day second) = 0.2 * 0.9 + 0.8 * 0.1 = 0.18

iii. At least one dry day: To find the probability of at least one dry day, we can subtract the probability of two rainy days from 1, since the only possibility in which there is no dry day is if both days are rainy:

1 - P(two rainy days) = 1 - 0.17 = 0.83

b) On three consecutive days, the probability of having:

i. Three rainy days: The probability of three rainy days can be found by multiplying the probabilities of rain on each day, given that the previous day was rainy. In this case, the probability of three rainy days is 0.2 * 0.85 * 0.85 = 0.1447.

ii. Exactly one dry day: To have exactly one dry day in three consecutive days, we need two rainy days followed by a dry day, or a rainy day followed by two dry days, or two dry days followed by a rainy day. The total probability of having exactly one dry day can be calculated as:

P(rainy day first, rainy day second, dry day third) + P(rainy day first, dry day second, dry day third) + P(dry day first, rainy day second, rainy day third)

= 0.2 * 0.85 * 0.9 + 0.2 * 0.9 * 0.9 + 0.8 * 0.1 * 0.1 = 0.1881

iii. At most two rainy days: To find the probability of at most two rainy days, we need to add up the probabilities of two rainy days and one rainy day.

P(at most two rainy days) = P(two rainy days) + P(one rainy day) = 0.17 + 0.18 = 0.35

So, the probability of having at most two rainy days in three consecutive days is 0.35.

Learn more about probability here :

brainly.com/question/23938115

#SPJ4

For the point 13. we have that the line passes through the points (-1,-2) and (0,1) then the slope is

and the line equation will be:

For the point 14: we have that the line passes through the points (-1,0) and (0,-1) then the sslope is:

and the line equation will be:

For the point 15: the line equation is y=-3 because the y coordinate will be always the same (-3) and the slope of the line will be equal to zero