Let W = {(0,x, y, z); x – 3y + 92 = 0} be a subspace of R*. Then a basis for W is: {(0,6.1,0), (0,-9,0,1)) None of the mentioned {(0,-6,1,0), (0,9,0,1)) {(0,3,1,0), (0,-9,0,1)) -4 12 -1 -1 Let k be a real number and A = k 2 lo 7 1 Then A is a singular matrix if None of the mentioned k=15/2 k=10 k=5

Answers

Answer 1

A basis for W is {(0,-6,1,0), (0,9,0,1)}.

Matrix A is a singular matrix when k = 1.

To find the basis for the subspace W and determine the value of k for matrix A, let's go through each part separately.

Part 1: Basis for W

The subspace W is defined by the equation x – 3y + 92 = 0. In order to find a basis for W, we need to find two linearly independent vectors that satisfy this equation.

From the given options, the vectors {(0,6.1,0)} and {(0,-9,0,1)} do not satisfy the equation x – 3y + 92 = 0.

However, the vectors {(0,-6,1,0)} and {(0,9,0,1)} satisfy the equation x – 3y + 92 = 0. Therefore, a basis for W is {(0,-6,1,0), (0,9,0,1)}.

Part 2: Singular Matrix A

Matrix A = [k 2 10 7 1].

To determine if A is a singular matrix, we need to check if its determinant is equal to zero.

Calculating the determinant of A:

det(A) = k(21 - 710) - 2(27 - 101) + 10(27 - 101)

= k(-68) - 2(-14) + 10(4)

= -68k + 28 + 40

= -68k + 68

A is a singular matrix if det(A) = -68k + 68 = 0.

Solving the equation -68k + 68 = 0, we find k = 1.

Therefore, A is a singular matrix when k = 1.

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Related Questions

Use substitution to solve the following system of equations.
y=3x +8
5x+ 2y = 5

Answers

Answer:

5x+2(3x+8)

5x+6x+16

11x+16

11x=-16

X=16/11

Trigonometry, please answer ASAP, Convert the radian measure to degrees.
12

Answers

Um can u attach a photo of the question bc no one can see it

Answer:

687.549 deg

Step-by-step explanation:

12 rad = 687.549 deg

PLEASE HELP ITS DUE TODAY!

5. Find the length of the missing side in the figure below. a =
cm.


5.8
2.4
8.5
оо
5.3

Answers

Answer:

a=[tex]\sqrt{28.32}[/tex]≈5.3217 cm

Step-by-step explanation:

Use the Pythagorean Theorem

a^2+4.7^2=7.1^2

a^2+22.09=50.41

a^2=28.32

a=[tex]\sqrt{28.32}[/tex]

≈5.3217

Answer:

5.3

Step-by-step explanation:

Check the attached image for explanation if you are interested, as I did not feel like spending 20 minutes re-formatting the equations to work on Brainly.

Also, I did not do this

Pls help I’m very confused (will mark brainliest)

Answers

DON'T OPEN IT IT IS A VIRUS!!

I would just like some solving steps or the answers.

Answers

Ooooooooooooooooooooh

in a single run of hades, zagreus has a 10% chance of catching 0 fish, 40% chance of catching 1 fish, 35% chance of catching 2 fish, and a 15% chance of catching 3 fish. calculate the standard deviation of the fish zagerus will catch.

Answers

The standard deviation of the fish Zagreus will catch is approximately 0.6833.

Given probability of catching fish by Zagreus in a single run of Hades is as follows: P(0 fish) = 0.10 P(1 fish) = 0.40 P(2 fish) = 0.35 P(3 fish) = 0.15

To calculate the standard deviation of the fish Zagreus will catch, we need to follow these steps:

Find the expected value, µ, of the fish he will catch.

Then, calculate the variance, σ², using the formula:σ² = Σ [(x - µ)² P(x)]

Finally, calculate the standard deviation, σ, which is the square root of the variance.μ = Σ [xP(x)]μ = (0 × 0.10) + (1 × 0.40) + (2 × 0.35) + (3 × 0.15)μ = 0.75

The expected value, µ, of the fish he will catch is 0.75.

To find the variance:σ² = [(0 - 0.75)² × 0.10] + [(1 - 0.75)² × 0.40] + [(2 - 0.75)² × 0.35] + [(3 - 0.75)² × 0.15]σ² = 0.4675

Finally, the standard deviation, σ, is the square root of the variance:σ = √σ²σ = √0.4675σ ≈ 0.6833

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Given: In a single run of hades, zagreus has a 10% chance of catching 0 fish, 40% chance of catching 1 fish, 35% chance of catching 2 fish, and a 15% chance of catching 3 fish. The standard deviation of the fish that Zagreus will catch is 0.49 fish.

The standard deviation of the fish that Zagreus will catch can be calculated using the following formula

σ = sqrt [∑(x-μ)²/N], where σ is the standard deviation, ∑ is the sum of, x is the fish, μ is the mean, and N is the total number of chances.

The mean value of the fish Zagreus is expected to catch is given by:

μ = (0 x 10/100) + (1 x 40/100) + (2 x 35/100) + (3 x 15/100)

μ = 0 + 0.4 + 0.7 + 0.45

μ = 1.55.

Therefore, the mean value of the fish Zagreus will catch is 1.55 fish.

To calculate the standard deviation, we first calculate the deviation of each value from the mean as shown below: Deviation = x - μ

The deviations for each value of fish that Zagreus could catch are: -1.55, -0.55, 0.45, and 1.45.

Now, we can plug in these values into the formula above to calculate the standard deviation as shown below:

σ = sqrt [(-1.55² x 10/100) + (-0.55² x 40/100) + (0.45² x 35/100) + (1.45² x 15/100)]

σ = sqrt [0.24025]

σ = 0.49

Therefore, the standard deviation of the fish that Zagreus will catch is 0.49 fish.

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Simplify the following expressions to have fewer terms 5x-3+4(4x-6)+2

Answers

Answer:

(21x-25)

Step-by-step explanation:

We need to find an equivalent expression for the following.

5x-3+4(4x-6)+2

We can solve it as follows:

5x-3+4(4x-6)+2 = 5x-3+16x-24+2

= 5x+16x-3-24+2

= 21x-25

So, the equivalent expression is equal to (21x-25).

Refering to #14, what is the approximate area of the lake where the resort has ownership responsibility? (Round your answer to the nearest hundredths) (Type in answer my F G F ZH = 71°.x=1.3. y = 20.0 . ZH = 71°,x= 3.0, y = 19.8 2H = 71°, x = 18.9, y 6.5 LH = 71°.x 6.5. y 18.9 14 A lakaside resort has ownership responsibility for the lako from each edge of their shoreline to the cantor of the roughly circular lake. The distance hom shore to the center of the lake is 130 meters and the central anglo respresenting the resorts Warship's 50° a What is the approudmate length of shoreline owned by the resort (Round your answer to the nearest hundredma) po in answer m)

Answers

The approximate area of the lake where the resort has ownership responsibility is 711.82 meters².

How to calculate the area

Area of sector = (central angle / 360°) * π * radius²

We know that the central angle is 50°, the radius is 130 meters, and π is approximately equal to 3.14.

Plugging these values into the formula, we get:

Area of sector = (50° / 360°) * 3.14 * 130²

Area of sector = 25/72 * 3.14 * 16900

Area of sector = 15750/22

Area of sector = 711.82 meters²

Therefore, the approximate area of the lake where the resort has ownership responsibility is 711.82 meters².

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Find the area of the shaded region. Use the pin button on the calculator. Round to the nearest whole number. 14 70°

Answers

Answer:

The area is approximately [tex]588cm^2[/tex]

Step-by-step explanation:

Given

See attachment for figure

Required

The area of the shaded region

The shaded region is as follows:

A major segmentA triangle

First, calculate the area of the major segment using:

[tex]Area = \frac{\theta}{360} * \pi r^2[/tex]

Where

[tex]r = 14[/tex]

[tex]\theta = 360 - 70 =290[/tex]

So, we have:

[tex]A_1 = \frac{290}{360} * 3.14 * 14^2[/tex]

[tex]A_1 = 495.7711[/tex]

Next, the area of the triangle using:

[tex]Area = \frac{1}{2}ab \sin C[/tex]

Where

[tex]a=b=r = 14[/tex]

[tex]C = 70^\circ[/tex]

So, we have:

[tex]A_2 = \frac{1}{2} * 14 * 14 * sin(70)[/tex]

[tex]A_2 = 92.0899[/tex]

So, the area of the shaded region is:

[tex]Area = A_1 + A_2[/tex]

[tex]Area = 495.7711 + 92.0899[/tex]

[tex]Area = 587.8610[/tex]

[tex]Area \approx 588[/tex]

8 x5/7 need help asap​

Answers

Answer:

5.71428571429

5 7/10

Step-by-step explanation:

Hope this helps and have a great day!!!!

Answer:

40/7

Step-by-step explanation:

Suppose that U follows the Uniform distribution U ~ U[2, 3]. Find the probability density function of Y = exp(U).

Answers

The probability density function of Y = exp(U) is given by:

                   f(y) = { 1/y, 2 ≤ y ≤ e³ ; 0, elsewhere }.

Given that: U follows the Uniform distribution U ~ U[2, 3]. We have to find the probability density function of Y = exp(U).

The formula used: The probability density function of a random variable X, is denoted by f(x), is the derivative of the cumulative distribution function (cdf), denoted by F(x). We have F(x) = P(X ≤ x).

The probability density function of the uniform distribution U(a,b), is given by

f(x)=1/(b-a), where a ≤ x ≤ b.

Here, U[2,3]So, a = 2, b = 3

Let's find the probability density function of Y = exp(U).

So, for finding the probability density function of Y = exp(U), first, we need to find the cumulative distribution function F(y) of Y. Let's do that.

So, F(y) = P(Y ≤ y) = P(exp(U) ≤ y) = P(U ≤ ln y)

We have, Y = exp(U), which is a one-to-one function of U and increasing in U. Hence, we can use the one-to-one transformation formula. Hence, the probability density function of Y, f(y) = f(u) / |dy/du|.f(u) = 1/ (3-2) = 1

Here, dy/du = d/dy [exp(u)] = exp(u) = Y

Therefore, f(y) = 1/Y, for 2 ≤ u ≤ 3.

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Suppose that U follows the Uniform distribution U ~ U[2, 3].

Find the probability density function of Y = exp(U).

Let fU(u) be the pdf of U.Since U has a Uniform distribution over the interval [2, 3], its pdf is given by:

fU(u) = {1 / (3 - 2)} = 1, 2 ≤ u ≤ 3, and 0 elsewhere.

Now we need to find the pdf of Y = exp(U).

Let FY(y) be the cdf of Y.

Then we can write:

FY(y) = P(Y ≤ y) = P(exp(U) ≤ y) = P(U ≤ ln(y)), for y > 0.

Since U is continuous and its pdf is given by fU(u), we have:

[tex]FY(y) = ∫_{2}^{ln(y)} fU(u)du = ∫_{2}^{ln(y)} 1du = ln(y) - 2, 2 ≤ ln(y) ≤ 3, and 0 elsewhere.[/tex]

We can differentiate FY(y) to find the pdf of Y:

fy(y) = d/dy FY(y) = (1 / y) fY(ln(y)) = (1 / y), 2 ≤ y ≤ e3, and 0 elsewhere.

Therefore, the probability density function (pdf) of Y = exp(U) is given by:

fy(y) = (1 / y), 2 ≤ y ≤ e3, and 0 elsewhere.

In general, if U is a continuous random variable with pdf fU(u) and Y = g(U) is a monotonic transformation of U, then the pdf of Y can be found using the formula:

[tex]fy(y) = fU(g^{-1}(y)) / |dg^{-1}(y) / dy|,[/tex]

where g^{-1}(y) is the inverse function of g(y) and |dg^{-1}(y) / dy|

is the absolute value of the derivative of g^{-1}(y) with respect to y.

The probability density function (pdf) of the random variable

Y = exp(U)

where U is distributed uniformly over the interval [2, 3] can be found as follows:

Let f_U(u) be the pdf of U.

Since U has a Uniform distribution over the interval [2, 3], its pdf is given by:

f_U(u) = {1 / (3 - 2)} = 1, 2 ≤ u ≤ 3, and 0 elsewhere.

Now we need to find the pdf of Y = exp(U).

Let F_Y(y) be the cdf of Y.

Then we can write:

[tex]F_Y(y) = P(Y ≤ y) = P(exp(U) ≤ y) = P(U ≤ ln(y)), for y > 0.[/tex]

Since U is continuous and its pdf is given by f_U(u), we have:

[tex]F_Y(y) = ∫_{2}^{ln(y)} f_U(u)du = ∫_{2}^{ln(y)} 1du = ln(y) - 2, 2 ≤ ln(y) ≤ 3, and 0 elsewhere.[/tex]

We can differentiate F_Y(y) to find the pdf of Y:

[tex]fy(y) = d/dy F_Y(y) = (1 / y) f_Y(ln(y)) = (1 / y), 2 ≤ y ≤ e^3, and 0 elsewhere.[/tex]

Therefore, the probability density function (pdf) of Y = exp(U) is given by:

fy(y) = (1 / y), 2 ≤ y ≤ e^3, and 0 elsewhere.

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find the mean of the day 10.25‚9‚4.75‚8‚2.65‚12‚2.35​

Answers

Answer:

7!

Step-by-step explanation:

If you add all of those numbers together it would be 49!

Then you divide that number how many numbers there are.

There are 7 numbers and 49/7 =7!

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HELP I NEED HELP ASAP
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HELP I NEED HELP ASAP

Answers

Answer:

I cannot see the picture

Step-by-step explanation:

2=5-5x (your answer must include the variable)

Answers

Answer: x=3/5

Step-by-step explanation:

can someone help me and explain this?? thanks so much! ​

Answers

Answer:

Step-by-step explanation:

10^7 = 1 and 7 zeros after it.

=> 10000000

Can somebody plz help answer these questions correclty (only if u remmeber how to do these) thanks sm!

WILL MARK BRAINLIEST WHOEVER ANSWEERS FIRST :DDD

Answers

Answer:

a= 126 degrees

b= 54 degrees

r= 54 degrees

s= 126 degrees

Step-by-step explanation:

What is 980x58? I am giving 10 points I am not sure if it’s fair

Answers

Answer: 56840

A bit of long multiplication

Answer:

56840

Step-by-step explanation:


prove the following statement:
Let n be an odd positive integer then the sum of n consecutive
integers is divisible by n.

Answers

The sum of n consecutive integers, where n is an odd positive integer, is divisible by n.

To prove the statement, let's consider a set of n consecutive integers starting from a.

The sum of n consecutive integers can be expressed as:

S = a + (a+1) + (a+2) + ... + (a+n-1)

To find the sum, we can use the formula for the sum of an arithmetic series:

S = (n/2) × (2a + (n-1))

Since n is an odd positive integer, we can represent it as n = 2k + 1, where k is a non-negative integer.

Substituting this value of n into the sum formula, we get:

S = ((2k+1)/2) × (2a + ((2k+1)-1))

Simplifying further:

S = (k+1) × (2a + 2k)

S = 2(k+1)(a + k)

Since k is an integer, (k+1) is also an integer. Therefore, we can rewrite the sum as:

S = 2m(a + k)

Now, we can see that S is divisible by n = 2k + 1, where m = (k+1).

Thus, we have proven that the sum of n consecutive integers, where n is an odd positive integer, is divisible by n.

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Kendall bought a vase that was priced at $450. In addition, he had to pay 9% sales tax. How much did he pay for the vase?

Answers

Answer:

$436

Step-by-step explanation:

A quality control expert at a pretzel factory took a random sample of 101010 bags from a production run of over 500500500 bags and measured the amount of pretzels in each bag in the sample. The sample data were roughly symmetric with a mean of 450, and a standard deviation of 15
Based on this sample, which of the following is a 90%, percent confidence interval for the mean amount of pretzels per bag (in grams) in this production run?

Answers

Answer:

H0​:μ=440 g

Ha​:μ does not equal 440 g​

Step-by-step explanation:

kahn

The 90% confidence interval for the mean amount of pretzels per bag (in grams) in this production run for this case is  [441.31, 458.69] approximately.

How to calculate confidence interval for population mean for small sample?

If the sample size is given to be n < 30, then for finding the confidence interval for mean of population from this small sample, we use t-statistic.

Let the sample mean given as [tex]\overline{x}[/tex] andThe sample standard deviation s, andThe sample size = n, and The level of significance = [tex]\alpha[/tex]

Then, we get the confidence interval in between the limits

[tex]\overline{x} \pm t_{\alpha/2}\times \dfrac{s}{\sqrt{n}}[/tex]

where [tex]t_{\alpha/2}[/tex] is the critical value of 't' that can be found online or from tabulated values of critical value for specific level of significance and degree of freedom n - 1.

For this  case, we're provided;

The sample mean given as [tex]\overline{x}[/tex] = 450The sample standard deviation s = 15The sample size = n = 10The level of significance = [tex]\alpha[/tex] = 100 - 90% = 10% = 0.1

The critical value of t  at level of significance 0.1 iand at degree of freedom 10-1=9 is:

Thus, the confidence interval in between the limits

[tex]450 \pm 1.833 \times \dfrac{15}{\sqrt{10}}[/tex]

or

[tex]450 \pm 8.69[/tex] approximately or 441.31 to 458.69 or we write it as: [441.31, 458.69] approximately.

Thus, the 90% confidence interval for the mean amount of pretzels per bag (in grams) in this production run for this case is  [441.31, 458.69] approximately.

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A linear function that represents the number of animals adopted from the shelter is compared to a different linear function that represents the hours volunteers work at the shelter each week. Describe the key features of the functions that are needed to determine if these lines intersect.

WILL MARK BRAINLIEST

Answers

Answer:

what is this a different answer orrrr?

Find the unit rate. Enter your answer as a mixed number.

A fertilizer covers 2/3 square foot in 1/4 hour.

The unit rate is
square feet per hour.

Answers

The answer to your question is 8/3 square feet per hour

Simone and Leah are playing a game with dice. What is the probability Simone rolls a 6 and then Leah rolls an odd number?

Answers

Answer:

1. 1/6

2. 1/2

Step-by-step explanation:

A dice has 6 sides. So the sample space for this question =

[1,2,3,4,5,6]

1. From the sample space we can see that 6 occurs only once in a dice

So probability of a 6

= 1/6

2. Number of odds = 3 (1,3,5)

Probability Leah rolls an odd number

= Odd/total

= 3/6

= 1/2

At a pet store, Davina counted 12 parrots out of 20 birds. Which is an equivalent ratio of parrots to birds at the pet store?

Answers

D. 3 to 5 This is because if you simplify the ratio by dividing each number in the ratio by 4, therefore for every group of 5 birds 3 of them are parrots
hope this helps!:)

The midpoint of CD is M=(2, -1). One endpoint is C=(-3,-3). Find the coordinates of the other endpoint, D. D (?, ?) M (2,-1) C (-3,-3) D = (-7, -1) Find an ordered pair (x, y) that is a solution to the equation. -x+5y=2

Answers

The ordered pair (x, y) that is a solution to the equation -x + 5y = 2 is (0, 2/5).

To find the coordinates of the other endpoint D given that the midpoint of CD is M(2, -1) and one endpoint is C(-3, -3), we can use the midpoint formula:

Midpoint formula:

The coordinates of the midpoint between two points (x₁, y₁) and (x₂, y₂) are given by ((x₁ + x₂) / 2, (y₁ + y₂) / 2).

Using the given information, we can substitute the known values into the midpoint formula and solve for the coordinates of D:

M(2, -1) = ((-3 + x₂) / 2, (-3 + y₂) / 2)

Simplifying the equation:

2 = (-3 + x₂) / 2

-1 = (-3 + y₂) / 2

To solve for x₂:

4 = -3 + x₂

x₂ = -3 + 4

x₂ = 1

To solve for y₂:

-2 = -3 + y₂

y₂ = -3 - 2

y₂ = -5

Therefore, the coordinates of the other endpoint D are D(1, -5).

To find an ordered pair (x, y) that is a solution to the equation -x + 5y = 2, we can choose any value for either x or y and solve for the other variable. Let's choose x = 0:

-0 + 5y = 2

5y = 2

y = 2/5

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Are the ratios 2:3 and 1:2 equivalent??

Answers

Answer:

No coz 2:3 is 2+3=5

1:2 is 1+2=3 so they are not equivalent.

If Sarah has $6453 Dallors of food and has $135 Dollars on her. How much will she need to pay for her food?
A. 6318
B. 233
C. 4555
D None of the Above

Answers

Answer:

It will be A

Step-by-step explanation:

6453

- 135

--------

6318 dollars needed for Sarah's food.

Hope this helps!

1/3 of your birthday cake is leftover from your party. If you eat 1/4 of the leftover cake, what fraction of the original birthday cake is left

Answers

Answer:

a twelth= 1/12

Step-by-step explanation:

Use the given values of n and p to find the minimum usual value and the maximum usual value. Round your answer to the nearest hundredth unless otherwise noted. n=267, p=0.239
a. Minimum usual value: 63.85, Maximum usual value: 90.56
b. Minimum usual value: 54.65, Maximum usual value: 79.92
c. Minimum usual value: 42.56, Maximum usual value: 72.01
d. Minimum usual value: 34.32, Maximum usual value: 68.76

Answers

Option (b) is the correct answer. Minimum usual value: 54.65

Maximum usual value: 79.92.

The given values are n = 267 and p = 0.239. The minimum usual value and the maximum usual value are to be calculated. We use the formula of the mean and the standard deviation for this purpose:

Mean = µ = np = 267 × 0.239 = 63.93Standard Deviation = σ = sqrt (npq) = sqrt [(267 × 0.239 × (1 - 0.239)] = 5.01The minimum usual value is obtained when the z-value is -2, and the maximum usual value is obtained when the z-value is +2. We use the z-score formula: z = (x - µ) / σwhere µ = 63.93 and σ = 5.01(a) When the z-value is -2, x = µ - 2σ = 63.93 - 2(5.01) = 53.91(b) When the z-value is +2, x = µ + 2σ = 63.93 + 2(5.01) = 73.95

Therefore, the minimum usual value is 53.91, and the maximum usual value is 73.95 (rounded to the nearest hundredth).

Thus, option (b) is the correct answer. Minimum usual value: 54.65Maximum usual value: 79.92.

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The given values are: n=267, p=0.239

We need to find the minimum usual value and the maximum usual value using these values of n and p.

Let X be a random variable with a binomial distribution with parameters n and p.

The mean of the binomial distribution is:μ = np

The standard deviation of the binomial distribution is:σ = sqrt(npq)where q = 1-p

Let X be a binomial distribution with parameters n = [tex]267 and p = 0.239μ = np = 267 × 0.239 = 63.813σ = sqrt(npq) = sqrt(267 × 0.239 × 0.761) = 6.788[/tex]

The minimum usual value is given by:[tex]μ - 2σ = 63.813 - 2 × 6.788 = 50.236[/tex]

The maximum usual value is given by:[tex]μ + 2σ = 63.813 + 2 × 6.788 = 77.39[/tex]

Thus, the minimum usual value is 50.24 and the maximum usual value is 77.39(rounded to the nearest hundredth).

Therefore, the answer is:Minimum usual value: 50.24, Maximum usual value: 77.39

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Plot the points D(-9,-6) E(-6,-3) F(0,-9)and dilate usinng a scale factor of 1/3 centered at the origin

Answers

Answer:

Step-by-step explanation:

Rule for the dilation of a point about the origin is,

(x, y) → (kx, ky)

Here, k = scale factor

Dilating points D, E and F about the origin by a scale factor 'k' = [tex]\frac{1}{3}[/tex]

D(-9, -6) → D'(-3, -2)

E(-6, -3) → E'(-2, -1)

F(0, -9) → F'(0, -3)

Now we can plot these points on graph.

Other Questions
Free soul is a personal products company manufacturing shampoo, conditioner, and liquid soap selling 2 million bottles of shampoo under Free soul brand. The operations director wishes to use the spare capacity on the manufacturing line by producing a shampoo for a supermarket chain under the supermarkets own label. The operations director confirms that the contract would be for 450,000 bottles and be sold at a 20% discount on current selling prices 1.50 per bottle. Direct costs would be the same (0.6 per bottle), but instead of variable distribution costs (0.2 per bottle) there would be a bulk delivery charge of 80,000. Allocated costs are 0.45 per bottle. Assess the impact of agreeing to the contract. What other factors should be taken into account? You have a definite plan in mind about new product launches for the new financial year.Three months after the plan was made, you find that you have to make frequent changes to the original plan because of business environmental factors. Should you discard planning altogether? If not, what is your reason? in what type of political system is genocide most like to occur? H5OH (1) + 302(g) 2CO(g) + 3HO(g)1.25 mol C2H5OH reacts withexcess oxygen. What volume ofCO2 gas is produced at STPduring the reaction? citation style is determined by: question 1 options: individual instructors geographic areas disciplines or fields of study none of the above Jae is offered the choice of two uncertain investments, each of which will require an Investment of 10,000. Jae's wealth, if they do not invest, is 18,000.Investment A returns:+20% with probability 30%+5% with probability 15%-15% with probability 45%+0% with probability 10% Investment B returns:+30% with probability 41% -20% with probability 59%Jae has utility of wealth given by the function: U(w) In(w)a) Show whether either of the investments is a fair gambleb) Determine which, if any, of the investments Jae will accept.c) A new investment, also requiring an investment of 10,000, is offered to Jae.The new investment returns: -10% with probability 40%.Calculate the return required with probability 60% to ensure that this investment is preferred by Jae to not investing A satellite orbiting the earth is directly over a point on the equator at 12:00 midnight every two days. It is not over that point at any time in between. What is the radius of the satellite's orbit? 1. Consider the following multiple linear regression modelY= Xi +(a) Derive the ordinary least squares estimator(b) According to Gauss Markov theorem, OLS estimator is said to be BLUE. Do you agree/Disagree? Show that OLS is(i) Unbiased; - the expected values of the estimated beta and alpha equal the true values describing the relationship between X and Y(ii) Linear; - if the relationship is not linear OLS is not applicable(iii) Best ; - variance of the OLS estimator is minimal, smaller that the variance of any other estimator ABC company is considering whether or not to invest in a joint venture.The initial cost is $7.2 million and the estimated operating cash flows are shown in the following table:Period Cash Flow1$900.000,2$930,0003$950,000 Let T: R3 R3 be defined by T(x,y,z) = (x + y,x - y - z, x +z). (A) Show that T is a matrix transformation by finding its standard matrix. (solution) (B) Find the determinant of the matrix in (A) above. (solution) (C) Show that the matrix in (A) above is invertible without finding its inverse. [Do NOT use your answer in (B) above.] (solution) (D) Find the inverse of the matrix in (A) above swinging a tennis racket against a ball is an example of a third class lever. please select the best answer from the choices provided.a.true b.false "The Definition of money is to be sought for not on grounds of principle but on grounds of usefulness in organizing our knowledge of economic relationships. Money is that to which we chose to assign a number of specified operations, it is not something in existence to be discovered, like the American continent; it is a tentative scientific construct to be invented, like length or temperature or force in Physics". Friedman, M and Anna J. Schwartz (1970), Monetary Statistics of The U.S, New York, NBER, p 137.a. Critically examine this passage in the light of the benefits enjoyed by a money-using economy which are not available to the barter economy.b. Do you think the choice of a particular monetary aggregate, a priori, would have made any difference to economic policy in your Country?c. Briefly explain the implications of the emergence of digital cash, especially mobile money, for savings mobilization and monetary policy in Ghana when a solid dissolves in water, heat may be evolved or absorbed. the heat of dissolution (dissolving) can be determined using a coffee cup calorimeter.In the laboratory a general chemistry student finds that when 8.01 g of CsBr(s) are dissolved in 111.10 g of water, the temperature of the solution drops from 24.31 to 21.97 C.The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.64 J/C.Based on the student's observation, calculate the enthalpy of dissolution of CsBr(s) in kJ/mol.Assume the specific heat of the solution is equal to the specific heat of water.Hdissolution = ____ kJ/mol .According to expectancy theory, high motivation will occur when:Expectancy is high.Instrumentality is high.Valence is high.Any two of three factorsexpectancy, instrumentality, or valence are high.Expectancy, instrumentality, and valance are all high. If fixed costs are $247,000, the unit selling price is $123, and the unit variable costs are $71, the break-even sales (units) is a. 4,750 units b. 3,479 units c. 1,273 units d. 2,008 units If the company had $4000 worth of office supplies at the beginning of the period. What is the entry required if we find that at the end of the period we have $3900 of supplies remaining. On January 1 of the current year, the Barton Corporation issued 7% bonds with a face value of $75,000. The bonds are sold for $72,750. The bonds pay interest semiannually on June 30 and December 31 and the maturity date is December 31, five years from now. Barton records straight-line amortization of the bond discount. The bond interest expense for the year ended December 31 isa.$5,250b.$2,250c.$438d.$5,700 Why was Princeton a different victory than Trenton?Princeton provided much needed military supplies. Princeton was an offensive battle and Trenton was a defensive battle. Trenton was defended by mercenaries and Princeton was defended by British regulars. There was no difference, they both were fought at the same time by the same troops the expansion stage in a relationship involves promises by both buyer and seller to work together for a single transaction. TRUE/FALSE It is certainly plausible that workers are less likely to quit their jobs when wages are high than when they are low. The paper "Investigating the Causal Relationship Between Quits and Wages" presented the accompanying data on x = average hourly wages and y = quit rate (number of employees per 100 who left jobs during 1986.) PredictorCoefStdevt=ratiopConstant 4.86150.52019.350.0Wage-0.346550.05866-5.910.0s=0.4862R-sq = 72.9%R-sq(adj) = 70.8%oWhat is the equation of the LSRL? oWhat is the slope of the LSRL? Interpret this value in context. oWhat is the coefficient of determination? Interpret this value in context. oState the conditions that should be checked to verify that a linear model of the data is reasonable. oUse the Minitab output to state the result of a hypothesis test on whether there is an association between average hourly wages and quit rate. You may assume the conditions of part (d) arc all met. (77iis is a two-sided hypothesis test about the slope of the population LSRL)