please help will mark as brainliest pls show work

Finding the sum of each outcome multiplied by it's respective probability, it is found that the expected value of guests in a room is of 1.85.

The expected value of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability.

In this problem, the distribution is:

[tex]P(X = 1) = 0.35[/tex]

[tex]P(X = 2) = 0.5[/tex]

[tex]P(X = 3) = 0.1[/tex]

[tex]P(X = 4) = 0.05[/tex]

Hence:

[tex]E(X) = 0.35(1) + 0.5(2) + 0.1(3) + 0.05(4) = 1.85[/tex]

The expected value of guests in a room is of 1.85.

A similar problem is given at https://brainly.com/question/24855677

Answer:

It's B

Step-by-step explanation:

The original equation is y - (y intercept)= slope(x-(x intercept))

Answer:

the answer is 1.3x + 2 ≥ 20

Step-by-step explanation:

the tree is already 2ft which mean it would need to be added to the rate of growth, 1.3 by the amount of year to find out the height. The question is saying however that I can be at least 20ft. so no less than 20 which is why the greater or equal to sign is used (≥)

Answer:

2,900

Step-by-step explanation:

i times 50 x 58

Answer:

x1=2-radical 34/5 x2=2+radical 34/5

Step-by-step explanation:

Answer:

327,52

Step-by-step explanation:

301,3*2100/92=327,52

Answer:

150 votes

Step-by-step explanation:

If Lucy got 5/6, we can do the following.

(5/6) * 180 = 150

So, Lucy got 150 votes.

Answer:

150

Step-by-step explanation:

We can first divide 180 by 6:

180/6 = 30

Then multiply that by 5:

5 × 30 = 150

Step-by-step explanation:

Formula for surface of sphere is 4 X pi X radius squared.

4 x 4squared = 64 pie = 201.0622498

so your answer is

64 pie or 201.0622498

(Either would work)

Answer:

2x - 4 is the answer

Step-by-step explanation:

Combine the like terms

The sum of -4x+1 and 6x-5 is 2x -4.

The result of "adding two or more numbers".

According to the question,

(- 4x + 1) + (6x-5)

= -4x + 1 + 6x -5

= 2x -4

Hence, the sum of  - 4x+1 and 6x-5 is 2x -4.

Learn more about Sum here

https://brainly.com/question/22412096

#SPJ2

Answer:

badge showing an astronaut's boot touching down on the moon.

Step-by-step explanation:

Answer:

it's a

Step-by-step explanation:

I did this quiz. your welcome

Answer:

my friend, I would have to go with B: -3/4n + 3/8

Answer: 128178718

That should be answer

Answer:

A. y = −x^2 + 2

Step-by-step explanation:

Answer:

Statement Reason

WV ≅ YV definition of midpoint

XV ≅ ZV definition of midpoint

Statement Reason

△VZY ≅ △VXW SAS (Side-Angle-Side)

Step-by-step explanation:

Answer:

It is the first answer

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

The result is 29/12 = 2 5/12 ≅ 2.4166667 = twenty-nine twelfths (

Step-by-step explanation:

Answer:

4 9/20

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

16-9=7

Answer:

  √10

Step-by-step explanation:

Integers, fractions, and repeating decimal numbers are all rational. The square root of an integer that is not a perfect square is irrational.

  √10 is irrational

Answer:

y = (-1 / 3 ) * x - 5

Step-by-step explanation:

Slope Intercept form is  y = mx + b

y = y coordinate

m = slope

x = x coordinate

b = y intercept

y intercept is where line touches the y axis

here b = -5

slope m = (y2 - y1 ) / (x2 - x1)  -----   (-6, -3) (6, -7)

m = (-7 - (-3) ) / (6 - (-6) )

m = (-7 + 3 ) / (6 + 6)

m = -4 / 12

m = - 1 / 3

y = (-1 / 3 )* x + (-5)

Answer:

(a+2)(a+6)

Step-by-step explanation:

Given expression ,

=> a² + 8a + 12

=> a² + 6a + 2a + 12

=> a(a+6) + 2(a+6)

=> (a+2)(a+6)

The possible graph of the question is a histogram with a vertical axis of Annual Tons of GHG, and MPG on the horizontal axis.

Reasons:

The given information are;

Price of gasoline per gallon = $2.454

GHG produced by the car that gets 20 miles per gallon = 8.8 tons

8.8 tons = 8.8 × 2,000 pounds = 17,600 pounds

GHG produced by the car that gets 20 miles per gallon = 17,600 pounds

Number of gallons of gasoline = [tex]\displaystyle \frac{17,600 \ pounds}{20 \ pounds/gallon} = 880 \, gallons[/tex]

Cost of gasoline for car A = $2.454 × 880 = $2,159.52

GHG produced by the car that gets 40 miles per gallon = 4.4 tons

8.8 tons = 4.4 × 2,000 pounds = 8,800 pounds

GHG produced by the car that gets 20 miles per gallon = 8,800 pounds

Number of gallons of gasoline = [tex]\displaystyle \frac{8,800\ pounds}{20 \ pounds/gallon} = 440 \, gallons[/tex]

Cost of gasoline for car B = $2.454 × 440 = $1,079.76

Learn more here:

https://brainly.com/question/21470991

Answer:

250

Step-by-step explanation:

because there is a chance and 1/2*100=250 which is the answer for the chance

fifty million two thousand seven.

- BRAINLIEST answerer

Answer:

f(3) = -10

g(-5) = 65

Step-by-step explanation:

Hi there!

[tex]f(x)=-3x-1[/tex]

To find f(3), replace x with 3:

[tex]f(3)=-3(3)-1\\f(3)=-9-1\\f(3)=-10[/tex]

[tex]g(x)=2x^2-3x[/tex]

To find g(-5), replace x with -5:

[tex]g(-5)=2(-5)^2-3(-5)\\g(-5)=2(25)+15\\g(-5)=50+15\\g(-5)=65[/tex]

I hope this helps!

Answer: 60°

Step-by-step explanation: A straight angle is 180°

180°- 120° = 60°

Answer:

Nickaul's dog is 33.284 pounds heavier than Kaila's.

Step-by-step explanation:

find the difference;

46.38 - 13.096 = 33.284