Try It!
Evaluate.
a. √27

The value of mgf of x \(M(t) = exp( M(t) = (λ(e^{t-1} ))\) and E[X] = 1

To calculate the moment generating function (MGF) of a Poisson distributed random variable X with parameter λ = 1, and then find E[X].

Step 1: Identify the Poisson distribution MGF formula.
The MGF of a Poisson distribution is given by: \(M(t) = exp( M(t) = (λ(e^{t-1} ))\)

Step 2: Plug in the parameter λ = 1.
\(M(t) = exp( M(t) = (λ(e^{t-1} ))\)


Step 3: Find the expectation E[X].
The expectation of a Poisson distributed random variable is equal to its parameter: E[X] = λ

Step 4: Plug in λ = 1.
E[X] = 1

So, the MGF of X, which follows a Poisson distribution with parameter λ = 1, is  \(M(t) = exp( M(t) = (λ(e^{t-1} ))\)
, and E[X] = 1.

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Answer:

4/10

Step-by-step explanation:

Since the denominators are the same, add the numerators (3 + 1)

and you are smart

The exponent tells you how many times you multiply the number before it. So 2^3 is equivalent to 2*2*2. 2^3 is 8, and 3^2 is 9, 8*9 is 72.

Answer:

72

Step-by-step explanation:

simply use calculator if you want to get the answe faster

2^3 x 3^2

= 8 x 9

= 72

Answer:

Sierra=2songs

Matt=7songs

Yun SIl=14songs

step-by-step explanation:

Step 1

Let,The number of songs YunSil added = x

Number of songs Matt added = y

And number of songs Sierra added = z

Such that Matt has 5more than Sierra =y = 5 +z

Yun SIl has 2 times more thann Matt, x = 2y

x =2(5+z)=10 +2z

Step 2

The expression used to determine number of songs on each player given that the total of songs added on the three players =15 +z^3

Such that

YunSil+Matt+Sierra==15 +z^3

10+2z+ 5+z +z = 15 +z^3

4z +15 = 15 +z^3

4z=15-15+z^3

4z=+z^3

4=z^3/z

4=z^2

Z=√4 =2

Therefore Sierra has z=2songs

Matt has 5+z=5+2=7songs

YunSil has 2(5+z)= 2x7=14songs

The song that are on each person player are as follows;

matt song = 7

Yung Sil song = 14

Sierra song = 2

Let

a = Matt song added

b = Yun Sil song

c = Sierra song =

Therefore,

b = 2a

a = c + 5

(c + 5 + 2a + c)  - c³ = 15

(2c + 2(c + 5) + 5) - c³ = 15

2c + 2c + 10 + 5 - c³ = 15

4c + 15 - c³ = 15

4c - c³ = 0

c³ = 4c

c² = 4

c = √4

c = 2

a = 2 + 5 = 7

b = 2(7) = 14

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Answer:

B would equal 9

Step-by-step explanation:

take 3/2 you get 1.5

multiple what b is now x 1.5

6*1.5 = 9

Find ratio

\(\\ \sf\longmaosto \dfrac{x}{B}=\dfrac{2}{6}\)

\(\\ \sf\longmaosto \dfrac{x}{B}=\dfrac{1}{3}\)

Put x=3

\(\\ \sf\longmaosto \dfrac{3}{B}=\dfrac{1}{3}\)

\(\\ \sf\longmaosto B=3(3)\)

\(\\ \sf\longmaosto B=9\)

Answer:

No, because each output of altitude has more than one input of time. ... No, because the altitude is constant between 60 minutes and 130 minutes

Step-by-step explanation:

look at the graph

Answer: C

Step-by-step explanation:

answer:

10:03 am

explanation:

9:00 am + 1 hour (60 min) + 3 min = 10:03 am.

Jake had $1200 of money initially, and he gave $200 to his mother.

What is Algebraic expression ?

In mathematics, an algebraic expression is a combination of variables, constants, and mathematical operations, such as addition, subtraction, multiplication, and division, that represents a quantity or a relationship between quantities.

Let's assume that Jake had M dollars of money initially.

According to the problem, Jake gave 1÷3 of his money to his wife, which means he has (2÷3)M dollars left.

Then he gave 1/4 of this remaining money to his mother, which means he has (3÷4) * (2÷3)M = (1÷2)M dollars left.

Since we are given that Jake had $600 left after giving the money to his wife and mother, we can set up the following equation:

(1÷2)M = 600

Solving for M, we get:

M = 2 * 600 = 1200

Therefore, Jake had $1200 of money initially, and he gave (1÷4) * (2÷3)M = (1÷4) * (2÷3) * 1200 = $200 to his mother.

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Answer:

x=2, y=1

Step-by-step explanation:

4x+8y=16

4x-8y=0

Add the two equations together:

8x=16

Divide both sides by 8:

x=2

Plug this back into one of the original equations to find y:

4(2)-8y=0

8-8y=0

y=1

Hope this helps!

Answer:

x, y = (0, 0)

Step-by-step explanation:

photo math broo

Answer:

10.6 hours

Step-by-step explanation:

Answer:

it the second one

Step-by-step explanation:

the pizza is 10 bucks. The 3 drinks all together cost 9 dollars. 3 times 3 is nine.

The correct representation is (b)

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given:

Total cost of a pizza and 3 drinks is 19$.

If pizza cost 10.

Then, remaining drinks costs = 19-10

                                                 = 9$

If each drinks carry equal price, so

= 9/3

= 3$

Each drinks cost $3.

Hence, the correct representation is (b): 10, d, d, d.

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x = 1.20 (correct to at least 3 decimal places)

To find the value of x such that P(X>x) = 0.12,

we need to use the cumulative distribution function (CDF) of the random variable X.

We can use the inverse of the CDF or use tables to find the value of x such that P(X>x) = 0.12.

Here's the solution:

We know that P(X>x) = 1 - P(X≤x)We are given P(X>x) = 0.12

.Substituting the values in the above formula,

we get:

P(X≤x) = 1 - 0.12 = 0.88

The CDF of the random variable X is given by:

F(x) = P(X≤x) = 0.88

Using tables or inverse CDF,

we can find the value of x such that F(x) = 0.88.

Using tables, we find the value of x such that F(x) = 0.88 is x = 1.20 (rounded to 2 decimal places).

Therefore,

x = 1.20 (correct to at least 3 decimal places).

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Answer:

22

Step-by-step explanation:

B racket

I ndices

D division

M multiplication

A addition

Subtraction

Work out answer using the BIDMAS order

Pitcher holds 75 in³ of liquid, more than enough to completely fill a vase with a 72 in³ rectangular prism shape.

A rectangular prism is a polyhedron in geometry that has two parallel and congruent bases.

It also goes by the name cuboid.

Six faces, each with a rectangle shape and twelve edges, make up a rectangular prism.

So, the volume of the rectangular prism is:

V = h*w*l

Now, insert values as follows:

V = h*w*l

V = 4.5*4*4

V = 72 in³

Pitcher has 75 in³ of water which is more than enough to fill the vase.

Therefore, the pitcher holds 75 in³ of liquid, more than enough to completely fill a vase with a 72 in³ rectangular prism shape.

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Answer A

Took the quiz

Answer:

only D as the correct answer

Step-by-step explanation:

The correct quadratic could not be B or C, because the negative sign in each indicates that the parabola opens down, which is not what we see here.

A is not appropriate either, because of the (x + 2)^2; that + sign tells us that the vertex lies 2 units to the left of the y-axis.

This leaves only D as the correct answer.

The answer to the question is 'False.'

Raw scores that have been mathematically transformed to have a designated mean and standard deviation are called standardized scores.

Standardized scores are scores that have a mean of 0 and a standard deviation of 1. This means that all standardized scores are expressed in standard deviation units above or below the mean. By using standardized scores, we can compare scores from different tests or distributions that may have different units of measurement or different means and standard deviations. Standard scores are represented by z-scores. Z-scores represent the number of standard deviations from the mean that a particular score falls. Z-scores help in comparing different scores on different scales and determine where a particular score stands in relation to the rest of the scores. A z-score of 0 indicates that the score is at the mean, while a positive z-score indicates that the score is above the mean and a negative z-score indicates that the score is below the mean.

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Answer:

When the shape reflects about the x-axis, the x-coordinate is unchanged but the y-coordinate becomes negative. When the shape reflects about the y-axis, the y-coordinate is unchanged but the x-coordinate becomes negative.

Step-by-step explanation:

Directly from edmentum

Answer:

When the shape reflects about the x-axis, the x-coordinate is unchanged but the y-coordinate becomes negative. When the shape reflects about the y-axis, the y-coordinate is unchanged but the x-coordinate becomes negative.

Step-by-step explanation:

this is the Plato/edmentum sample answer so change it up a bit

Each DVD cost is $17.80

This is a simple equation

From the question we have the following information :

1. Total spent for 2 dvd ( before tax ) = $17.80

2. Sales Tax for those spending = $2.85

Let's call the cost of each DVD "x".

The total cost of both DVDs would be 2x.

We know that the total cost of both DVDs and the sales tax was $38.45, so we can set up an equation:

2x + $2.85 = $38.45

Solving for x:

2x = $38.45 - $2.85 = $35.60

x = $35.60 / 2 = $17.80

Hence from explanation above, each DVD cost $17.80.

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Answer:

The answer is 8

Step-by-step explanation:

The length of a side must be less than the sum of the other two sides. Here, that means x < 10+13, or x < 23.

In addition, remember that the length of a side must be greater than the difference of the other two sides. That means x > 13 - 10, or x > 3.

Therefore we have two limits for the value of x: 3 and 23.

3 < x < 23

Answer:

We can find the expected value of C(w) as follows:

E(C) = ∫[0,1] C(w) dw + ∫(1,∞) C(w) f(w) dw

where f(w) is the probability density function of w outside the interval [0,1].

Since C(w) is a constant function in the interval [0,1], we have:

∫[0,1] C(w) dw = -a ∫[0,1] dw = -a

Using the fact that the integral of a probability density function over its entire domain is equal to 1, we can find f(w) as:

∫(1,∞) f(w) dw = 1 - ∫[0,1] dw = 1 - 1 = 0

Therefore, we can write:

E(C) = -a (0 - 1) + ∫(1,∞) (w - 1 - a) f(w) dw

Simplifying, we get:

E(C) = a - ∫(1,∞) (w - 1 - a) f(w) dw

To find the value of a that makes E(C) = 0, we need to solve the equation:

a - ∫(1,∞) (w - 1 - a) f(w) dw = 0

Multiplying both sides by -1 and rearranging, we get:

∫(1,∞) (w - 1 - a) f(w) dw = -a

Expanding the integrand, we get:

∫(1,∞) wf(w) dw - ∫(1,∞) f(w) dw - a ∫(1,∞) f(w) dw = -a

Since the integral of f(w) over its entire domain is equal to 1, we can simplify further:

∫(1,∞) wf(w) dw - 1 - a = -a

Rearranging, we get:

∫(1,∞) wf(w) dw = 1

This means that f(w) is a probability density function over the entire real line, not just outside the interval [0,1].

To find the value of a that satisfies this condition, we need to find the probability density function f(w) that integrates to 1 over the entire real line.

Since f(w) is a probability density function, it must be nonnegative and integrate to 1 over its entire domain.

One possible choice for f(w) that satisfies these conditions is:

f(w) = (1 - a) e^(-w) for w ≥ 1

Using this choice for f(w), we can verify that:

∫(1,∞) f(w) dw = ∫(1,∞) (1 - a) e^(-w) dw = (1 - a) e^(-1) = 1

Therefore, a = 1 - e^(-1) ≈ 0.6321 is the value that makes E(C) = 0.

Answer:

(0,-3)

Step-by-step explanation:

Answer: See Explanation

Step-by-step explanation:

You didn't really say what you want to calculate but based on the information, I'll assume that you want to calculate the total cost.

Since he expression 4(a+12)+5(8) represents the total cost of the tickets. Therefore, the total cost will be:

= 4(a+12)+5(8)

= 4a + 48 + 40

= 4a + 88

The closest option is D. $-0

To determine the gain or loss on the repurchase of stock, we need to compare the repurchase price with the original sale price.

Original sale price: 500,000 shares * $50 per share = $25,000,000

Repurchase price: 12,000 shares * $40 per share = $480,000

To calculate the gain or loss, we subtract the repurchase price from the original sale price:

Gain or Loss = Original Sale Price - Repurchase Price

            = $25,000,000 - $480,000

            = $24,520,000

Since the result is a positive value, it represents a gain. Therefore, the company will recognize a gain of $24,520,000 on its income statement.

The given options do not include this exact amount, so the closest option is D. $-0-. However, it is important to note that the gain is not zero but rather $24,520,000.

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for the ball to get to the ground the h=0 no hight it is now in the base point.

substitute the value t=0 into the equation we get 64.

since we want to know the time in seconds then we should subtract 60 from 64 (64-60=4)

then my answer is 0-4.

I'm not sure it's correct just wait for others to respond

Answer:

0.0036 i think this is the answer. I don't really know.

Answer:

J

Step-by-step explanation:

assuming the 2 is a squared s a*a is a2 2*a*-b is -2ab

and -b* -b is b2

Answer:

if the condition of the son is very critical

a surgeon will say NO

Because after a successful operation, the son will become like a vegetable

and there's no point of doing so.

It's a torture to the son for the rest of his life.

The reflection of the point (-11, 30) across the y-axis is (11, 30)

Reflection of a point is a type of transformation

To find  the reflection of the point (-11, 30) across the y-axis, we proceed as follows.

For any given point (x, y) being reflected across the y - axis, it becomes (-x, y).

So, given the point (- 11, 30), being reflected across the y-axis, we have that

(x, y) = (-x, y)

So, on reflection across the y - axis, we have that the point (- 11, 30) it becomes (-(-11), 30) = (11, 30)

So, the reflection is (11, 30).

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