A game is played using ne die. If the die is rolled and shows 3, the player wins $45. If the die shows any number other than 3, the player wins nothing. If there is a charge of $9 to play the game, what is the game's expected value?

Answers

Answer 1

Answer:

-$13.5

Step-by-step explanation:

Let x be a random variable of a count of player gain.

- We are told that if the die shows 3, the player wins $45.

- there is a charge of $9 to play the game

If he wins, he gains; 45 - 9 = $36

If he looses, he has a net gain which is a loss = -$9

Thus, the x-values are; (36, -9)

Probability of getting a 3 which is a win is P(X) = 1/6 since there are 6 numbers on the dice and probability of getting any other number is P(X) = 5/6

Thus;

E(X) = Σ(x•P(X)) = (1/6)(36) + (5/6)(-9)

E(X) = (1/6)(36 - (5 × 9))

E(X) = (1/6)(36 - 45)

E(X) = -9/6 = -3/2

E(X) = -3/2

This represents -3/2 of $9 = -(3/2) × 9 = - 27/2 = -$13.5


Related Questions

Coach DeCaro records the cross country runners' times compared to their personal best times.
Runner
Gregor
Hiroki
Isabelle
Juan
Karen
3K Times
Time compared to
personal best
+5.6
-11.6
+3.2
0
-5.2
Which runners ran slower than their personal best?
O Juan
O Gregor and Isabelle
Gregor, Isabelle, and Juan
O Hiroki and Karen

Answers

Answer:I think its C but Im not sure

Step-by-step explanation: SMILE MORE!!! :D

Answer: Option B

( ik it's late but i needed the points lol)

Step-by-step explanation:

I got it right on my unit test on edge2021

what does SOH,CAH,TOA mean?​

Answers

Answer:

Use Sin if Opposite Hypotenuse, Use Cosine if Adjacent Hypotenuse, and Use Tangent if Opposite Adjacent

Help meeeeeee! If it’s correct you will get a something good!

Answers

Answer:

24/4=6

Step-by-step explanation:

In the model, there are 4 rows of 6 blocks. 24 total blocks divided by the 4 rows gives you six objects in each row.

HTH :)

|2| + |-13| =

BRAINLIST AND EXTRA POINTS

Answers

Answer:

15

Step-by-step explanation:

|2| + |-13| =

2+13

15

Answer:

I think I might be 15

Step-by-step explanation:

I looked it up on google

Steve is looking up at Godzilla with an angle of elevation of 49 degrees. If Steve is 400 feet away, how tall is Godzilla to the nearest foot?

Answers

9514 1404 393

Answer:

  460 feet

Step-by-step explanation:

The tangent relates the measures to the angle:

  tan(angle of elevation) = (Godzilla height)/(distance away)

  tan(49°) = (Godzilla height)/(400 ft)

  Godzilla height = (400 ft)(tan(49°)) ≈ 460 ft

Godzilla is 460 feet tall.

Answer:

godzilla is 393 foot tall

Step-by-step explanation:

Which of the following sets of side lengths would form a triangle? Check all that apply.

10, 9, 13
6, 13, 8
10, 19, 9
12, 10, 8
6, 4, 15

Answers

Answer:

Step-by-step explanation:

a, b, c

a + b > c

a + c > b

b + c > a

1). Yes, would form.  

2). Yes, would form.

3). No, would not form. 10 + 9 = 19

4). Yes, would form.

5). No, would not form. 6 + 4 < 15

The ratio of two computers is 3:2.

1.If the first computer costs 55000/=,what is the price of the second computer?

2.If the price of 2nd computer is 2000/= more,what is the ratio of. the computers?

Need it for test​......

Answers

Answer:

36666.66 units

Step-by-step explanation:

Let the cost of computer 1 is 3x and that of 2 is 2x.

Cost of first computer = 3x

55000 = 3x

x = 18333.33

Cost of second computer = 2x

= 2(18333.33)

= 36666.66

Henc, the cost of the second computer is 36666.66 units.

Find the third side in simplest radical form:

Answers

Answer:

br515898 avatar

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Step-by-step explanation:

also this not mine O-O

evaluate 5.6t for t = 0.7​

Answers

Answer:

3.92

Step-by-step explanation:

.7*5.6=3.92

hope that helps!

see the image bellow please help 30 points

Answers

The answer is 173 cubic inches

Cody plays an online game that allows users to trade points earned from the game for pieces of gold that could be used as currency to trade among players. The function P(g)=−50g+14,590 represents the number of points, P, Cody has after purchasing g pieces of gold. What does the y-intercept of P(g) represent for this situation?

Answers

Answer:

The y intercept is 1450

Step-by-step explanation:

Given

[tex]P(g) = -50g + 14590[/tex]

Required

Determine the y intercept

To answer this question, we need to understand the general form of a linear equation.

This is:

[tex]f(x) = mx + b[/tex]

Where b represents the y intercept

By comparing [tex]f(x) = mx + b[/tex] to [tex]P(g) = -50g + 14590[/tex], we have that:

[tex]b = 14590[/tex]

This implies that the y intercept is 1450

What is the equation of the line with a slope of 1/2 that passes through the point (-8, -2)?

Answers

Answer:

The answer is

[tex]y = \frac{1}{2} x + 2 \\ [/tex]

Step-by-step explanation:

To find an equation of a line when given the slope and a point we use the formula

[tex]y - y_1 = m(x - x_1)[/tex]

From the question we have

[tex]y + 2 = \frac{1}{2} (x + 8) \\ y + 2 = \frac{1}{2} x + 4 \\ y = \frac{1}{2} x + 4 - 2[/tex]

We have the final answer as

[tex]y = \frac{1}{2} x + 2 \\ [/tex]

Hope this helps you

Can someone help me please

Answers

The correct answer is:

b. 2.8

Kevin bought 5 tickets to a concert for $115. How much will it cost for 8 tickets to the concert if all tickets have the same unit price? Use the table below to help determine the missing value:

Answers

$184 for 8 tickets!

To find the unit price you divide 115/5 to get 23. $23 is the price of each ticket. You then times 23 by 8 to get $184.

Answer:

184$

Step-by-step explanation:

23$ per ticket

8 tickets = 184$

HOPE THIS HELPS

PLZZ MARK BRAINLIEST

175+14.25x=200+11z solve the problem

Answers

Answer:

x = 7.69

Step-by-step explanation:

We need to solve the given problem. It is as follows :

175+14.25x=200+11x

Here, x is a variable. We can take on one side of an equation and constants to the other side such that,

14.25x-11x = 200-175

3.25x=25

x = 25/3.25

x = 7.69

Hence, the solution of the given equation is 7.69.

5. Jessica rode her bike 3 miles on Thursday and 4 miles on Friday. On Saturday, she rode twice as many miles as she rode on the first two days. How many miles did Jessica ride her bike on Saturday?
A. 7 miles
B.9 miles
C. 14 miles
D.6 miles

Answers

Answer:

C : 14 miles

Step-by-step explanation:

3 + 4 =7

7 × 2 = 14

Answer:

c. 14 miles

Step-by-step explanation:

you add the 3 miles plus the 4 miles and multiply it by 2

3*4= 7 *2

PLEASE HELP ASAP!! AND PLEASE SHOW ALL WORK THANK YOU!! 10x + 5 + 3x +1 =

Answers

Answer:

13x + 6

Step-by-step explanation:

10x + 3x + 5 + 1

13x + 5 + 1

13x + 6

You just combine like terms

Answer:

The answer is 53

Step-by-step explanation:

= 10x*5+3x*1

= 50x+3x*1

= 50x+3x

= 53x

Which of these sets of measurements represents the lengths of the sides of a right triangle?

a. (10, 24, 26)

b. (5, 12, 24)

c. (12, 18, 30)

d. (1, 2, 9)

Answers

Answer: The answer is B, just had this answer today, teacher said it was correct.

there a 158 beats per minute in a certain taylor swift song. if the song is 3 minutes and 30 seconds long, how many total beats are there

Answers

Answer:

553 beats

Step-by-step explanation:

What is the equation in slope-intercept form for the line that passes through the points (−2, −1) and (1, 5)?
A. y = 2x − 3
B. y = 2x + 3
C. y = −2x − 3
D. y = −2x + 3

Answers

Answer:

y=2x+3

Step-by-step explanation:

we know the slope is 2

now we are going to find b

-1=2(-2)+b

-1=-4+b

-1+4=3

3=b

in the circle shown, chords AC and BD intersect at E . if AE=8, EC=6, and BE=4. how long is DE?

10

12

14

16

Answers

Answer:

[tex] DE = 12 [/tex]

Step-by-step explanation:

Given:

AE = 8,

EC = 6,

BE = 4.

Required:

Length of DE

SOLUTION:

According to the Intersecting Chords Theorem, [tex] DE \times BE = AE \times EC [/tex]

Plug in the values into the equation. We would have:

[tex] DE \times 4 = 8 \times 6 [/tex]

[tex] DE \times 4 = 48 [/tex]

Divide both sides by 4

[tex] DE = \frac{48}{4} [/tex]

[tex] DE = 12 [/tex]

Answer:

12

Step-by-step explanation:

ANSWER QUICK PLEASE!!!! BRAIN LIST AND POINTS

Find the measure of x
Q
s
15(x+1)
150
T
Ox=1
Ox=9
-Ox=10
Ox=11

Answers

Answer:

x = 9

Step-by-step explanation:

The two angles are alternate exterior and has same measurement

15(x+1) = 150 divide both sides by 15

x + 1 = 10 subtract 1 from both sides

x = 9

Question 12. How much more will her shirt cost in Union City than in River 10 points
City? A $0.01 B $0.05 C $0.10 D $25.80 *

Answers

Step-by-step explanation:

we need the whole question

Answer:

Need more explanation

Step-by-step explanation:

Can someone please help me out

Answers

Answer:

1.5 lb/person

Step-by-step explanation:

All that is shown is a 12-lb turkey being used for 8 people.

Since you want the unit rate of pounds per person, divide the number of pounds by the number of people.

12 lb / 8 people = 1.5 lb/person

find the two partial products in the multiplication problem.
230x33
Plz help me and take your time on this i'm in no rush <3

Answers

Answer:

690 and 6,900

Step-by-step explanation:

     230

x      33

______

     690

+   6,900

________

    7590

Can someone help me find x.

Answers

Answer:

Step-by-step explanation:

6x+9=63

6x=63-9

6x=54

x=54/6

x=9

I encourage you to figure out the justification yourself.

question is in png pls some1 help !

Answers

Answer:

Triangle x = 30. Pentagon x = 50

Step-by-step explanation:

For the triangle,

Find the angle which is beside x in the triangle,

let's name that angle y, so 55 + 55 + y = 180 ( we find 55 by subtracting both angles 125 from 180)

110 + y = 180

Y = 180 - 110

y = 70

Now that we have find Y, we can easily find x by subtracting 70 from 180 which would be, 70 + X = 180

x = 180 - 70

x = 30

For the pentagon,

Again find the angle which is beside x in the pentagon,

let's name that y again, 90 + 120( by subtracting 60 from 180) + 110( by subtracting 70 from 180)  + 90 + y = 540

210 + 200 + y = 540

410 + y = 540

y = 540 - 410

y = 130

Now that we have find y, we can easily find x by subtracting 130 from 180 which would be, 130 + x = 180

x = 180 - 130

x = 50

Hope this helps!

The person above me is right, brainliest her/ or him

An equation is a mathematical statement composed of algebraic and/or numeric expressions set equal to each other.

True
False

Answers

Answer:

True,

Definition of equation for you: a statement that the values of two mathematical expressions are equal (indicated by the sign =).

A student wants to graph his earnings for each week during the next calendar year. He wants to see how his earnings change
from week to week as the year goes on. Which type of graph is the most appropriate?
line graph
O circle graph
box-and-whisker plot

Answers

Answer:

Step-by-step explanation:

Line graph

The line graph is the most appropriate.

What is graph?

In mathematics, a graph is a visual representation or diagram that shows facts or values in an ordered way.

The relationships between two or more items are frequently represented by the points on a graph.

To monitor changes over both short and long time periods, line graphs are utilized. Line graphs perform better than bar graphs when there are smaller changes. Line graphs can be used to compare changes for multiple groups over the same time period.

Therefore, the line graph is the most appropriate.

To learn more about the line graph;

https://brainly.com/question/23680294

#SPJ5

Enter the desimal equivalent of 6
Plz hurry

Answers

Answer:

0.06*

Step-by-step explanation:

*Assuming you mean 6%

6 percent can be written as 6/100, or six hundredths.

In decimal form, six hundredths is .006.

HTH :)

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