Can I get some help please

The new estimator θ^3 is also an unbiased estimator with an expectation equal to θ.

(a) The values of E(θ^1) and E(θ^2) are unknown without further information. Being unbiased estimators means that, on average, they provide estimates that are equal to the true population parameter θ. Therefore, we have:

E(θ^1) = θ

E(θ^2) = θ

(b) To find the expectation E(θ^3), we can use the linearity property of expectations:

E(θ^3) = E(aθ^1 + (1 - a)θ^2)

Since θ^1 and θ^2 are unbiased estimators, their expectations are equal to θ:

E(θ^3) = E(aθ^1 + (1 - a)θ^2) = aE(θ^1) + (1 - a)E(θ^2)

Using the values from part (a), we have:

E(θ^3) = aθ + (1 - a)θ = θ(a + 1 - a) = θ

Therefore, the new estimator θ^3 is also an unbiased estimator with an expectation equal to θ.

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Answer:

Step-by-step explanation:

L = w+8

P = 2L + 2w

256 = 2(w+8) + 2w

256 = 2w + 16 + 2w

256 = 4w + 16

240 = 4w

w=60

Length is 60+8 = 68

width is 60

Answer:

668054.9

Step-by-step explanation:

5.49 x 10^4 = 51054.9

6.17 x 10^5 = 617000

61000 x 51054.9 = 668054.9

I could be wrong but hope this helps

Answer:

x=2.8

Step-by-step explanation:

Simplify

3(3) = 9

0.75(2) =1.5

Add

9+1.5=10.5

Simplify again

(3+0.75)x= 3.75x

Divide each side by 3.75

10.5=3.75x

3.75 cancels out and you're left with 2.8

Answer:

a(7b + 1)

Step-by-step explanation:

7ab + a ← factor out the common factor a from each term

= a(7b + 1)

Answer:

no neither of them are correct they both got the answer wrong because they didn't get the correct number because they didn't do the right steps to get the right answer.

Step-by-step explanation:

well it =141328480. Conner's work equals out to be 1013. Jana's works out to be 338800. Making them both wrong but Jana being the closet to the right answer because since there is no symbol telling you what to do and it is in () then you would be multiplying the two numbers in the ().

Answer: 1: 17-5x4/2=17-10=final answer is 10

2: 40-32/8+5x-2

divide 40-4+5x(-2)

multiply 40-4-10

calculate the difference

40-4-10=26

3.35-14/2+8^2

divide 35-7+8^2

evaluate the power

35-7+64

calculate =92

4.(4-7)-6x7+20

calculate the difference

(-3)^2-6x7+20

multiply the numbers

(-3)^2-42+20

evaluate the power

(-3^)2-42+20

9-42+20

-13

did some hope this helps

Step-by-step explanation:

pemdas so you keep the 17 and then you multiply the 5x4 which gives you 20 divide that by two and you get 10

Answer: 3n - 1 = n + 5

Step-by-step explanation:

If needed to solve 3n-1=n+5

3n-n=5+1

2n=6

n=3

This is extra information. I hope this helped you

To prove that W = {au + Bula,8 € R} is a subspace of vector space V, we need to show that W satisfies the three conditions for being a subspace: closure under addition, closure under scalar multiplication, and contains the zero vector.

Closure under addition: Let x, y be arbitrary vectors in W. We can write    x = au + Bula and y = cu + Cvla, where a, b, c, d are scalars. Now, let's consider the sum of x and y: x + y = (au + Bula) + (cu + Cvla).

By applying the distributive property, we can simplify this to

(a + c)u + (b + d)ula.  Since (a + c) and (b + d) are scalars, we see that x + y    is also in the form of       au + Bula, which means it belongs to W. Therefore, W is closed under addition.

Closure under scalar multiplication: Let x be an arbitrary vector in W and k be a scalar. We have x = au + Bula. Now, let's consider the scalar multiple of x: kx = k(au + Bula). Applying the distributive property, we get kx = (ka)u + (kbl)a. Since (ka) and (kbl) are scalars, we can see that kx is also in the form of au + Bula, indicating that it belongs to W. Thus, W is closed under scalar multiplication.

Contains the zero vector: The zero vector can be expressed as 0 = 0u + 0ula. Since 0 and 0 are scalars, we can see that the zero vector is in the form of au + Bula and therefore belongs to W.

Since W satisfies all three conditions for being a subspace, we can conclude that W is a subspace of V.

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Answer:

The price of the drink is: $4

and the bag of popcorn costed $5.5

Step-by-step explanation:

Let b=the price of each bag of popcorn

Let d=the price of each drink

One bag of popcorn costs $b, so 10 bags of popcorn cost 10b. One drink costs $d, so 6 drinks cost 6d. The total cost 10b+6d equals \$79:

10b+6d=79

Likewise, if 3 bags of popcorn and 5 drinks cost $36.50, then:

3b+5d=36.50

Write System of Equations:

10b+6d=79

3b+5d=36.50

Answer:

Perpendicular Lines

Step-by-step explanation:

Hope this helps really not much to explain since its vocab!

Answer:x=-2

Step-by-step explanation:

Distribute 5 and 7 so you’ll get

30x+20+7x+42, then combine like terms

37x+62, then subtract 62 on both sides

-74=37x, then divide both sides by 37

-2=x

Answer:

240 = 50 + 20x

Answer:

The answer is positive one or '1'

Step-by-step explanation:

Answer:

x = - 1/2

Step-by-step explanation:

x - 2 = 3x - 1    We have to subtract x from both sides of the equation and we    have to add 1 to both sides of the equation.

-1 = 2x           Divide 2 from both sides of the equation

x = - 1/2           <-- This is your answer

Hope this helps!

Answer:

first one linear

second one quadratic

linear

Step-by-step explanation:

Answer:

f(x)=2x+3 is linear and polynomial

f(x)=x^2+2x= -3 quadratic and polynomial

f(x)=3^3 - 2 is exponential

Step-by-step explanation:

Answer:

[tex]\boxed {z = 6}[/tex]

Step-by-step explanation:

Solve for the value of [tex]z[/tex]:

[tex]\frac{1}{4} = \frac{1}{12} + \frac{1}{z}[/tex]

-The variable [tex]z[/tex] cannot equal to [tex]0[/tex] since division by zero is undefined. SO, you multiply both sides by [tex]12z[/tex], which is the least common multiple of [tex]4[/tex], [tex]12[/tex], and [tex]z[/tex]:

[tex]3z = 12z \times (\frac{1}{12}) + 12[/tex]

[tex]3z = z + 12[/tex]

-Take [tex]-z[/tex] and subtract it from [tex]3z[/tex]:

[tex]3z - z = z - z + 12[/tex]

[tex]2z = 12[/tex]

-Divide both sides by [tex]2[/tex]:

[tex]\frac{2z}{2} = \frac{12}{2}[/tex]

[tex]\boxed {z = 6}[/tex]

So, the value of [tex]z[/tex] of [tex]6[/tex].

Answer:

true  

Step-by-step explanation:

Answer:

True

Step-by-Step-Explanation: Because Consecutive Interior Pairs are pairs of angles on one side of the transversal but inside the two lines

Answer:

False

V(cylinder 1) = π(6^2)(8) = 288π

V(cylinder 2) = π(4^2)(18) = 288π

S(cylinder 1) = 2π(6^2) + 2π(6)(8) = 168π

S(cylinder 2) = 2π(4^2) + 2π(4)(18) = 176π

Answer:

[tex]\boxed {x = 623}[/tex]

Step-by-step explanation:

Solve for the value of [tex]x[/tex]:

[tex]-377 = x - 1,000[/tex]

-Switch sides:

[tex]-377 = x - 1,000[/tex]

[tex]x - 1,000 = -377[/tex]

-Add [tex]1,000[/tex] on both sides:

[tex]x - 1,000 + 1,000 = -377 + 1,000[/tex]

[tex]\boxed {x = 623}[/tex]

Therefore, the value of [tex]x[/tex] is [tex]623[/tex].

Answer:its 623

Step-by-step explanation: 1000+ -377 will equal to 623

Answer:

Step-by-step explanation:

let x = present age

x+7 = age 7 years from now

x-3 = age 3 years ago

After 7 years, Raj will be twice as old as he was 3 years ago

x+7=2(x-3)

x+7=2x-6

2x-x=7+6

x=13

Answer:

y = 3

Step-by-step explanation:

I will assume you want to put this in slope intercept form.

We need to solve for b in y = mx + b since we are given a point and the slope.

y = 0x + b

y = b

3 = b

y = 3

Note that since the slope is 0, there will be nothing to represent m.

Best of Luck!

9x=5x+20

9x-5x=20

4x=20

x=5

Answer:

-7

Step-by-step explanation:

Isoquants for f(K, L) = 1/2 min{K, L} that produce exactly 10 goods and 25 goods can be graphed, with labeled points.

For function f(K, L) = 1/2 min{K, L}, we can graph the isoquants that represent the combinations of capital (K) and labor (L) that produce exactly 10 goods and 25 goods.

An isoquant represents all the combinations of inputs (K and L) that yield the same level of output. In this case, the isoquants will be curves that connect different combinations of K and L, where the output is constant at either 10 goods or 25 goods.

To graph the isoquant for 10 goods, we plot points where f(K, L) = 10. For example, if we let K = 4 and L = 4, the minimum of K and L is 4, so f(K, L) = 1/2 * 4 = 2 goods.

Since this is less than 10, we need to increase either K or L. We can try K = 8 and L = 4, where the minimum of K and L is still 4, and f(K, L) = 1/2 * 4 = 2 goods. Again, this is less than 10, so we increase K or L further.

Continuing this process, we can plot a few more points and connect them to obtain the isoquant for 10 goods.

Similarly, we can graph the isoquant for 25 goods by plotting points where f(K, L) = 25. For each point, we determine the minimum of K and L, multiply it by 1/2, and check if the result is equal to 25. By plotting and connecting several such points, we obtain the isoquant for 25 goods.

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Answer:58

Step-by-step explanation:

Answer 58

Answer: the answer is 325.32

Answer:

D. Two angles are vertical angles if and only if their sides form two pairs of opposite rays

Step-by-step explanation:

A conditional statement is a statement that is is not truely ascertain except a particular condition is also true. This is done by using an IF statement. When a statement is biconditional, it means it is combined form of a conditional statement. The later is written by combining "two ifs" i.e IF and only IF. The statement is trying to ascertain two conditional statements at a time.

Given the statement "Two angles are vertical angles when their sides form two pairs of opposite rays.", we can see that it is made up to two statements.

1) Two angles are vertical angles

2) their sides form two pairs of opposite rays.

To ascertain the truthfulness of both statements, we will use the biconditional statement " if and only if". Hence the statement will become "Two angles are vertical angles if and only if their sides form two pairs of opposite rays"

Hence, option D is correct