Function g can be thought of as a scaled version of f(x) = x^2.
Write the equation for g(x).

There is no value of implicit differentiation where the given situation can be satisfied.

The given equation is: xy * e^y = e

We want to find the value of y^n at the point where x=0.

1. Rewrite the equation: xy * e^y = e

We have an equation involving both x and y. To find the value of y^n at x=0, we need to implicitly differentiate the equation with respect to x.

2. Implicit differentiation:

To implicitly differentiate the equation, we treat y as a function of x and use the chain rule. Differentiating both sides of the equation with respect to x, we get:

d/dx (xy * e^y) = d/dx (e)

Using the product rule on the left side, we have:

y * d/dx (x * e^y) + x * d/dx (e^y) = 0

The derivative of e^y with respect to x can be found using the chain rule:

d/dx (e^y) = d/dy (e^y) * dy/dx = e^y * dy/dx

3. Plug in x=0:

Now, let's plug in x=0 into the equation. We have:

y * d/dx (0 * e^y) + 0 * d/dx (e^y) = 0

Simplifying, we get:

y * (0 * e^y) + 0 * (e^y * dy/dx) = 0

Since any number multiplied by 0 is 0, the equation becomes:

0 + 0 = 0

So, we have 0 = 0, which is a true statement.

4. Conclusion:

From the result 0 = 0, we can conclude that the equation holds when x=0. However, this doesn't provide any specific value for y or y^n at x=0.

Therefore, the original question of finding the value of y^n at x=0 cannot be determined solely from the given equation. The equation does not provide enough information to solve for a specific value of y or y^n at x=0.

In summary, there is no value for y^n at the point where x=0 in the given situation because the equation cannot be satisfied at x=0.

To know more about implicit differentiation refer here:

https://brainly.com/question/11887805?#

#SPJ11

If sin θ = 45 4 5 and 2 π 2 < θ < 32 3 π 2 , the value of tan(θ) is 1125/sqrt(23).

First, we need to find the value of cos(θ) since we know sin(θ).

sin²(θ) + cos²(θ) = 1

cos²(θ) = 1 - sin²(θ)

cos(θ) = sqrt(1 - sin²(θ))

cos(θ) = sqrt(1 - (45/4)^2/5^2)

cos(θ) = sqrt(1 - (2025/1600))

cos(θ) = sqrt(575/1600)

cos(θ) = sqrt(23)/20

Now, we can find the value of tan(θ).

tan(θ) = sin(θ)/cos(θ)

tan(θ) = (45/4)/sqrt(23)/20

tan(θ) = (45/4) * (20/sqrt(23))

tan(θ) = (225/2) * (1/sqrt(23))

tan(θ) = (225/2) * (sqrt(23)/23)

tan(θ) = 1125/sqrt(23)

Therefore, the value of tan(θ) is 1125/sqrt(23).

Learn more about tan at https://brainly.com/question/16157693

#SPJ1

The required computations are: G(-1) = -3 and G(G(-1)) = -9

For more such question on computations

https://brainly.com/question/31016987

#SPJ11

Answer:

no

Step-by-step explanation:

23.2 < 156

Answer:

2

Step-by-step explanation:

The constant of proportionality is given by the formula k=y/x, so

8/4=2

10/5=2

18/9=2

20/10=2

We see that the constant of proportionality=2

Hope this helps!

The constant of proportionality is 2.

The correct option is B.

When two variables are directly or indirectly proportional to one another, their relationship can be expressed using the formulas y = kx or y = k/x, where k specifies the degree of correspondence between the two variables. The proportionality constant, k, is often used.

We have,

x pair of socks and y is the total cost in dollar.

Using Constant of Proportionality

y = kx

put from the table y= 8 and x= 4

8 = k (4)

k= 8/4

k = 2

Learn more about Constant of Proportionality here:

https://brainly.com/question/29126727

#SPJ3

The unit vector with positive x-component that is orthogonal to both p(0) and p′(0) is [tex]v_u_n_i_t[/tex] = v / ||v|| = ⟨-1,0,0⟩.

First, we need to find the vector that represents the position of the curve at t=0, which is p(0) = ⟨-1,0,0⟩.

Then we need to find the vector that represents the velocity of the curve at t=0, which is p'(t) = ⟨2t,2,4t⟩, so p'(0) = ⟨0,2,0⟩.

To find a unit vector that is orthogonal to both p(0) and p'(0), we can use the cross product:

v = p(0) x p'(0)

where "x" denotes the cross product. This will give us a vector that is perpendicular to both p(0) and p'(0), but it may not be a unit vector. To make it a unit vector, we need to divide by its magnitude:

[tex]v_u_n_i_t[/tex] = v / ||v||

where "||v||" denotes the magnitude of v.

So let's calculate v:

v = p(0) x p'(0) = ⟨0,0,2⟩ x ⟨0,2,0⟩ = ⟨-4,0,0⟩

And the magnitude of v is:

||v|| = sqrt((-4)^2 + 0^2 + 0^2) = 4

So the unit vector that is orthogonal to both p(0) and p'(0) and has a positive x-component is:

[tex]v_u_n_i_t[/tex] = v / ||v|| = ⟨-1,0,0⟩

Know more about vector here:

https://brainly.com/question/25705666

#SPJ11

Theorem 1 states that if the functions f and f' are continuous on an interval (a,b) containing the initial point, then there exists a unique solution to the initial value problem on that interval.

In this case, we can rewrite the given differential equation as y' = (eˣy - x⁴ + 3)/6, and notice that both eˣy and x⁴ are increasing functions. Therefore, for a unique solution to exist, we need to ensure that the denominator (6) is positive for all values of x in (a,b).

Solving for y'' using the differential equation and plugging in the given initial conditions, we get y''(6) = e⁶/2 - 6/6 = (e⁶ - 6)/2. Since y''(6) is positive, the function y is concave up at x = 6, which means the function is increasing and hence y'(6) > 0.

Therefore, we can choose a = 6 - ε and b = 6 + ε for any positive ε such that y'(x) > 0 for x in (a,6) and y'(x) < 0 for x in (6,b). Hence, the largest interval for which Theorem 1 guarantees the existence of a unique solution is (6-ε, 6+ε).

To know more about differential equation click on below link:

https://brainly.com/question/14620493#

#SPJ11

The calculated value of the measure of the angle DBC is 104 degree

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

∠angle ABC = 140 °

∠angle DBC = 36 °

Using the sum of angles theorem, we have

∠angle DBC + ∠angle ABD = ∠angle ABC

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

∠angle DBC + 36 = 140

Evaluate the like terms

So, we have

∠angle DBC = 104

Hence, the measure of the angle DBC is 104 degree

Read more about angle at

https://brainly.com/question/28293784

#SPJ1

Complete question

If m∠angle ABC = 140 ° , and m∠angle DBC=36 ° then m∠angle ABD

The percentage error is approximately 0.0042%.

To use linear approximation, we first need to find a "nice" point close to the values we want to multiply. Let's choose 3 and 2 as our nice points since they are easy to square.

We can then write:

(2.98)² ≈ (3 - 0.02)² = 3² - 2(3)(0.02) + (0.02)² = 9 - 0.12 + 0.0004 = 8.8804

(2.02)² ≈ (2 + 0.02)² = 2² + 2(2)(0.02) + (0.02)² = 4 + 0.08 + 0.0004 = 4.0804

Multiplying these two approximations, we get:

(2.98)²(2.02)² ≈ 8.8804 × 4.0804 ≈ 36.246

Using a calculator, we find the actual value to be 36.2444.

To compute the percentage error, we use the formula:

Error = |(approximation - actual value) / actual value| × 100%

Error = |(36.246 - 36.2444) / 36.2444| × 100% ≈ 0.0042%

Therefore, the percentage error is approximately 0.0042%.

To learn more about percentage error here:

brainly.com/question/4170313#

#SPJ11

The radius of the smaller circular base of the cylinder is 0.3225 cm which is nearly equal to 0.4 cm.

The ratio of two identical cylinders' surface areas is equal to the square of the ratio of their corresponding linear dimensions. In other words, if the surface area ratio of two comparable cylinders is a/b, then the radius ratio is (a/b).

Let r1 be the radius of the smaller cylinder's circular base and r2 be the radius of the larger cylinder's circular base. We know that their surface area ratio is 16/25, so:

[tex](r2^2/r1^2) = 16/25[/tex]

We also know that r2 = 0.5 cm, so we can plug that into the equation to find r1:

[tex](0.5^2/r1^2) = 16/25r1^2 = (0.5^2) * (25/16)[/tex]

r1 = 0.3125 cm

As a result, the radius of the smaller circular base of the cylinder is 0.3225 cm which is nearly equal to 0.4cm.

Learn more about cylinder here:

https://brainly.com/question/16134180

#SPJ1

The value of the triple iterated integral is  63/36.

Here is the step by step explanation

To evaluate the triple iterated integral ∫(from -1 to 2) ∫(from 0 to 1) ∫(from 0 to 2) xyz^5 dx dy dz, first we  integrate with respect to  the x:

∫(from -1 to 2) ∫(from 0 to 1) [(x^2y^2z^5)/2] (from 0 to 2) dy dz.

Now, integrate with respect to  the y:

∫(from -1 to 2) [(y^3z^5)/6] (from 0 to 1) dz.

Finally, integrate with respect to the z:

[(z^6)/36] (from -1 to 2).

Now, substitute the limits of  the integration:

[((2^6)/36) - ((-1)^6)/36] = (64/36) - (1/36) = 63/36.

To learn more about integration : brainly.com/question/31433890

#SPJ11

Step-by-step explanation:

The diagram is not included:

18 ft  x  10 ft  =  180 ft^2

180 ft^2  *  $ 3.19 / ft^2 = $  574.20     for a rectangular pool cover

If it is triangular    1/2 * 10 * 18   * $3.19 = $287.10

Jim can arrange the 11 songs on the playlist in 39,916,800 different ways. This can be answered by the concept of Permutation and Combination.

To determine the number of ways Jim can arrange the 11 songs on the playlist, we need to use the formula for permutations. The formula for permutations is n! / (n-r)!, where n is the total number of items and r is the number of items being chosen at a time. In this case, Jim has 11 songs and he wants to arrange all 11 of them on the playlist, so n = 11 and r = 11. Plugging these values into the formula, we get:

11! / (11-11)! = 11!

Simplifying 11!, we get:

11 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 39,916,800

Therefore, Jim can arrange the 11 songs on the playlist in 39,916,800 different ways.

To learn more about Permutation and Combination here:

brainly.com/question/13387529#

#SPJ11

The correct answer is not given in the options.

To find the values of c and d, we can use the formula for the inverse of a 3x3 matrix:

A^-1 = 1/det(A) x [adj(A)],

where det(A) is the determinant of matrix A and adj(A) is the adjugate matrix of A.

First, we need to find the determinant of matrix A:

det(A) = 1(1 x 4 - (-2)(0)) - 0(1 x 4 - 0(-2)) + 0(1 x 1 - 0(0)) = 4.

Next, we need to find the adjugate matrix of A, which is the transpose of the matrix of cofactors of A:

adj(A) = [{begin{array}{cc} 4&0&2 \ 0&4&0 \-2&0&1 \end{array}\right].

Therefore, we have:

A^-1 = 1/4 x [{begin{array}{cc} 4&0&2 \ 0&4&0 \-2&0&1 \end{array}\right)]

Multiplying out, we get:

A^-1 = [{begin{array}{cc} 1&0&1/2 \ 0&1&0 \-1/2&0&1/4 \end{array}\right)]

Comparing this with the given formula for A^-1:

A^-1 = 1/6(a^2 + cA + dI)

We can see that the diagonal elements of A^-1 correspond to the values of dI, so d = 1/4.

Also, the (1,3) entry of A^-1 corresponds to the value c in cA, so c = 2 x 6 = 12.

Therefore, the correct answer is not given in the options.

To learn more about adjugate visit:

https://brainly.com/question/11945376

#SPJ11

Answer:

m=147°

Step-by-step explanation:

Sum of interior angles of an n-sided polygon = (n-2)×180°, where n is the number of sides.

Sum of interior angles = (5-2) × 180°

= 3 × 180°

= 540°

m = 540-132-84-101-76

= 147°

To verify the given factors of f(x), we can use the factor theorem, which states that if (x-a) is a factor of f(x), then f(a) = 0. Using this, we can check that f(3) = 0 and f(-2) = 0, which confirms that (x-3) and (x+2) are indeed factors of f(x).

a) The given factors of f(x) are (x-3) and (x+2).

b) To find the remaining factor(s) of f(x), we can divide f(x) by (x-3) and (x+2) using long division or synthetic division. Doing this, we get:
f(x) = (x-3)(x+2)(x^2 - 5x + 6)

c) The complete factorization of f(x) is (x-3)(x+2)(x-2)(x-3).

d) The real roots of f(x) can be found by setting each factor equal to zero and solving for x. Thus, the real roots are x=3 and x=-2.

To find the remaining factor(s) of f(x), we can use long division or synthetic division to divide f(x) by (x-3) and (x+2). This gives us the quadratic factor (x^2 - 5x + 6), which we can factor further as (x-2)(x-3). Thus, the complete factorization of f(x) is (x-3)(x+2)(x-2)(x-3).

To find the real roots of f(x), we can set each factor equal to zero and solve for x. This gives us x=3 and x=-2, which are the only real roots of f(x).

Learn more about Factorization:

https://brainly.com/question/25829061

#SPJ11

The volume of the solid enclosed by the surface z = sqrt[tex](4 - x^2 - y^2\\[/tex]) and the plane z = 0 is (16/3)π.

To determine the volume of the solid enclosed by the surface z = sqrt[tex](4 - x^2 - y^2[/tex]) and the plane z = 0, we need to set up a triple integral over the region R in the xy-plane where the surface intersects with the plane z = 0.

The surface z = sqrt(4 - x^2 - y^2) intersects with the plane z = 0 when 4 - [tex]x^2 - y^2[/tex] = 0, which is the equation of a circle of radius 2 centered at the origin. So, we need to integrate over the circular region R: [tex]x^2 + y^2[/tex] ≤ 4.

Thus, the volume enclosed by the surface and the plane is given by:

V = ∬(R) f(x,y) dA

where f(x,y) = sqrt(4 - [tex]x^2 - y^2[/tex]) and dA = dx dy is the area element in the xy-plane.

Switching to polar coordinates, we have:

V = ∫(0 to 2π) ∫(0 to 2) sqrt(4 - [tex]r^2[/tex]) r dr dθ

Using the substitution u = 4 - r^2, we have du/dx = -2r and du = -2r dr. Thus, we can write the integral as:

V = ∫(0 to 2π) ∫(4 to 0) -1/2 sqrt(u) du dθ

= ∫(0 to 2π) 2/3 ([tex]4^(3/2)[/tex]- 0) dθ

= (16/3)π

Therefore, the volume of the solid enclosed by the surface z = sqrt(4 - [tex]x^2 - y^2[/tex]) and the plane z = 0 is (16/3)π.

Learn more about Triple Integrals

brainly.com/question/30404807

#SPJ11

The values of the missing parts of the triangles are shown below.

Trigonometry is used to solve problems involving angles and distances, and it has many practical applications in fields such as engineering, physics, and astronomy.

DE = 5/Sin 30

= 10

DF = 10 Cos 30

= 8.6

JK = 2√6/Sin 60

= 2√6/√3/2

JK = 2√6 * 2/√3

JK = 4√6 /√3

LK = Cos 60 *  4√6 /√3

= 1/2 * 4√6 /√3

LK = 2√6 /√3

Thus the missing parts have been filled in by the use of the trigonometric ratios.

Learn more about trigonometry:https://brainly.com/question/29002217

#SPJ1

In mathematics, an expression is a combination of numbers, variables, and operators (such as +, -, x, /, and ^) that represents a value or a relationship between values.

An expression can be as simple as a single number or variable, or it can be a more complex combination of terms and operators.

Given expression: (5/2) * 476 * 10^(-9) * 0.86 / (0.39 * 10^(-6))

Step 1: Calculate 5/2
5/2 = 2.5

Step 2: Replace the given values in the expression
(2.5) * 476 * 10^(-9) * 0.86 / (0.39 * 10^(-6))

Step 3: Multiply the constants
2.5 * 476 * 0.86 = 1079

Step 4: Multiply the exponents
10^(-9) / 10^(-6) = 10^(-9 + 6) = 10^(-3)

Step 5: Combine constants and exponents
1079 * 10^(-3)

Step 6: Express the answer in scientific notation
1.079 * 10^(3-3) = 1.079 * 10^0

The final answer is 1.079 since any number raised to the power of 0 is 1.

To learn more about “expression” refer to the https://brainly.com/question/1859113

#SPJ11

In mathematics, an expression is a combination of numbers, variables, and operators (such as +, -, x, /, and ^) that represents a value or a relationship between values.

An expression can be as simple as a single number or variable, or it can be a more complex combination of terms and operators.

Given expression: (5/2) * 476 * 10^(-9) * 0.86 / (0.39 * 10^(-6))

Step 1: Calculate 5/2
5/2 = 2.5

Step 2: Replace the given values in the expression
(2.5) * 476 * 10^(-9) * 0.86 / (0.39 * 10^(-6))

Step 3: Multiply the constants
2.5 * 476 * 0.86 = 1079

Step 4: Multiply the exponents
10^(-9) / 10^(-6) = 10^(-9 + 6) = 10^(-3)

Step 5: Combine constants and exponents
1079 * 10^(-3)

Step 6: Express the answer in scientific notation
1.079 * 10^(3-3) = 1.079 * 10^0

The final answer is 1.079 since any number raised to the power of 0 is 1.

To learn more about “expression” refer to the https://brainly.com/question/1859113

#SPJ11

To fit a geometric model for determining the number of zeros on a roulette wheel without looking at the wheel, we need to use the probability distribution of a geometric random variable.

(a) Let p be the probability of observing a zero slot on the wheel. Since there are 36 non-zero slots, we have p = 1/37. Let X be the number of non-zero slots observed before the first zero slot. Then X follows a geometric distribution with parameter p.

If we observe r odd/even bets being paid before we see a bet not being paid, then we have observed r+1 spins in total, and the number of non-zero slots observed is X = r. The maximum likelihood estimate of p is the sample proportion of zero slots observed, which is p = 1 - r/(r+1) = 1/(r+1).

The number of slots on the wheel is 36/p, so the maximum likelihood estimate of the number of slots on the wheel is 36(r+1).

(b) The reliability of this estimate depends on the sample size, which is r+1 in this case. As r increases, the sample size increases and the estimate becomes more reliable. However, if r is too small, the estimate may not be accurate due to sampling variability.

(c) If we watch the wheel k times and observe ri odd/even bets being paid before we see a bet not being paid in the ith experiment, then the total number of non-zero slots observed is X = r1 + r2 + r3.

The maximum likelihood estimate of p is p = 1 - X/(k+X), and the maximum likelihood estimate of the number of slots on the wheel is 36(p/(1-[)).

As k increases, the sample size increases and the estimate becomes more reliable. However, we need to be careful not to overestimate the number of slots on the wheel, since there could be some overlap in the observed non-zero slots across different experiments.

(a) To determine the maximum likelihood estimate of the number of slots on the wheel, let p be the probability of landing on a non-zero slot. Since there are 36 non-zero slots, the probability p = 36/n, where n is the total number of slots. The likelihood function is L(p) = p^r * (1-p), where r is the number of odd/even bets paid. To maximize L(p), we take the derivative dL(p)/dp and set it to 0. Solving for n, we get the estimate n = 36 + r.

(b) The reliability of this estimate depends on the value of r. The larger r is, the more confident we can be in our estimate. However, for small values of r, the estimate may not be very reliable as the sample size is too small to make a confident prediction.

(c) To determine the maximum likelihood estimate using k experiments, we need to consider the joint likelihood function of all experiments: L(p) = p^(r1+r2+r3) * (1-p)^k. Similar to part (a), we take the derivative dL(p)/dp and set it to 0. Solving for n, we get the estimate n = 36 + (r1+r2+r3)/k.


In summary, the maximum likelihood estimates for the number of slots on the wheel can be calculated using the given formulas. However, the reliability of the estimates depends on the number of observations and the total number of odd/even bets paid.

Visit here to learn more about geometric model brainly.com/question/27575903

#SPJ11

The amount paid as a car loan is $19,500 at 6% compounded annually of the principal amount of $15,000.

The Amount is calculated by [tex]A=P(1+\frac{r}{n} )^{nt}[/tex]

where A is the Amount

P is the Principal

r is the Interest rate (in decimals)

n is the frequency at which the interest is compounded per year

t is the Time duration

According to the question,

Principal = $15,000

interest rate = 6% compound annually

Since interest is compounded annually, n =1

Time duration = 6 years

Therefore,

[tex]A= 15,000*(1+\frac{0.06}{1})^{1*5}\\ = 15,000*(1+0.06)^{5}\\= 15,000*(1.06)^{5}\\= 15,000*1.3\\= 19,500[/tex]

Hence, the amount paid is $19,500.

Learn more about compound interest:

https://brainly.com/question/30364118

#SPJ4

The probability of B from k is 0.655

The probability tree of the distribution is given as

A = 0.5k

B = 7k - 0.15

C  = 2.5k

By definition, we have

Sum of probabilities = 1

This means that

A + B  C = 1

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

0.5k + 7k - 0.15 + 2.5k = 1

When evaluated, we have

10k - 0.15 = 1

So, we have

10k = 1.15

Divide

k = 0.115

Recall that

B = 7k - 0.15

So, we have

B = 7(0.115) - 0.15

Evaluate

B = 0.655

Hence, the probability of B is 0.655

Read more about probability at

https://brainly.com/question/24756209

#SPJ1

Answer:

SA = [2π(1.4)² + 2.8π(4.2)] ft²   (Answer B)

Step-by-step explanation:

d = 2.8 ft; r = 1.4 ft

h = 4.2 ft

SA = area of 2 circular bases + lateral area

SA = 2πr² + 2πrh

SA = 2π(1.4)² + 2π(1.4)(4.2)

SA = 2π(1.4)² + 2.8π(4.2)

Given values satisfy the Distributive property of multiplication by -4=-4.

The Distributive Property of multiplication says that the multiplication of a group of numbers that will be added or subtracted is always equal to the subtraction or addition of individual multiplication.

To verify the given Distributive property of multiplication,

Given a = 4, b = (-2) and c = 1

The expression for the Distributive Property of multiplication is A(B+C) = AXB + AXC. So by substituting those values in the equation we get,

4((-2)+1) = 4x(-2) + 4x1

4(-1) = -8 + 4

-4 =  -4

So, by the above verification, we conclude that the given values satisfy the Distributive Property of Multiplication.

To know more about the Distributive Property of Multiplication,

https://brainly.com/question/28490348

The initial simplex tableau of the corresponding dual problem is:
[ 2  2  1  0  0  5
 5  3  0  1  0 15
-1 -2  0  0  1  0 ]

To find the initial simplex tableau of the dual problem, first transform the minimization problem into its dual form, which will be a maximization problem.


1. Rewrite the minimization problem as:
  Minimize P = 5w₁ + 15w₂
  subject to:
  2w₁ + 5w₂ ≥ 1
  2w₁ + 3w₂ ≥ 2

2. Transform the problem into its dual form (a maximization problem):
  Maximize Q = y₁ + 2y₂
  subject to:
  2y₁ + 2y₂ ≤ 5
  5y₁ + 3y₂ ≤ 15

3. Write down the initial simplex tableau for the dual problem:
  [ 2  2  1  0  0  5
    5  3  0  1  0 15
   -1 -2  0  0  1  0 ]

To know more about simplex tableau click on below link:

https://brainly.com/question/31325287#

#SPJ11

Answer:

d

Step-by-step explanation:

Answer:

A) Changing the measurement unit.

Step-by-step explanation:

"Changing the measurement unit" is the correct answer because when you convert from feet to inches, you are essentially changing the unit of measurement from a larger unit (feet) to a smaller unit (inches) within the same system of measurement (length or distance). It involves multiplying the value in feet by a conversion factor to obtain the equivalent value in inches. This process is commonly used in math, science, and everyday life when dealing with different units of measurement.

The graph of the given inequality is as attached below.

The general formula for the equation of a line in slope intercept form is:

y = mx + c

where:

m is slope

c is y-intercept

We are given the inequality equation:

y > ¹/₄x - 2

Using the slope intercept form, we have the slope as 1/4 and the y-intercept as -2.

Read more Inequality Graph at: https://brainly.com/question/11234618

#SPJ1

Approximately 34.13% of fly balls go between 250 and 300 feet.

To find the percentage of fly balls that go between 250 and 300 feet, we'll use the z-score formula and standard normal distribution table

Calculate the z-scores for both 250 and 300 feet:

For 250 feet (the mean):
z = (X - μ) / σ
z = (250 - 250) / 50
z = 0

For 300 feet:
z = (X - μ) / σ
z = (300 - 250) / 50
z = 1

Use the standard normal distribution table to find the probability between these z-scores:

P(0 < z < 1) = P(z < 1) - P(z < 0)
P(z < 1) ≈ 0.8413 (from the table)
P(z < 0) = 0.5 (since it's the mean)

Subtract the probabilities:

Percentage = (0.8413 - 0.5) × 100

Percentage ≈ 34.13

for such more question on percentage

https://brainly.com/question/24877689

#SPJ11

E(Z³) = 0.

Expected value of X E(X) is equal to its mean, μ.

We have two parts to answer:

(a) Calculate E(Z³), which is the third moment of Z
(b) Calculate E(X)

(a) Since Z ~ N(0, 1), it is a standard normal random variable. For standard normal random variables, all odd moments are equal to 0. This is because the standard normal distribution is symmetric around 0, and odd powers of Z preserve the sign, causing positive and negative values to cancel out when calculating the expectation. Therefore, E(Z³) = 0.

(b) To calculate E(X), recall that X = σZ + μ, where Z is a standard normal random variable, and X is a normal random variable with mean μ and variance σ². The expectation of a linear combination of random variables is equal to the linear combination of their expectations:

E(X) = E(σZ + μ) = σE(Z) + E(μ)

Since Z is a standard normal random variable, its mean is 0. Therefore, E(Z) = 0, and μ is a constant, so E(μ) = μ:

E(X) = σ(0) + μ = μ

So, the expected value of X is equal to its mean, μ.

Learn more about Expected value.

brainly.com/question/29574962

#SPJ11