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Nezavi [6.7K]
3 years ago
10

Find the expected value of the winnings

Mathematics
1 answer:
adelina 88 [10]3 years ago
3 0

Multiply each payout by the corresponding probability and take the total:

E[X] = 0×0.5 + 5×0.2 + 8×0.15 + 10×0.1 + 15×0.05 = 3.95

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A bike rental company charges a $5 service fee and $1 per hour. If this situation is represented as a function, what would be th
Elenna [48]
Write as a function equation: where f(x) is the same as "y"

f(x) = 5 + 1x   ------  y = 1x + 5

Use:  y = mx + b  (Where m = slope and b is y intercept)

Slope is 1 and y intercept is +5 

Remember slope is rise over run so 1 can be written as 1 / 1 and interpreted as rise 1 and run 1 both in the positive direction. 



4 0
3 years ago
Read 2 more answers
Please help, I really need help
7nadin3 [17]
So the teacher bought 1/4 of the brownie pan. And it came out to $4.
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5 0
3 years ago
How did you fine the answer. The answer that I have is correct but how do you get to it . I need 1a 1b and 2
Anna71 [15]

1a:

580 - (580 × .1) - 20

580 - (58) - 20

522 - 20

502

1b:

990 - (990 × .25) - 20

990 - (247.5) - 20

742.5 - 20

722.5

I'm not sure how to solve #2.

6 0
3 years ago
The distances between three cities on a map are 45 miles, 56 miles, and 72 miles. Do the positions of
ollegr [7]

Answer:

The position of the three cities do not form a right-triangle.

Step-by-step explanation:

There are three cities on a map (say A, B, and C).

Now, the distances between them are 45 miles, 56 miles, and 72 miles.

i.e. AB= 45 miles, BC= 56 miles and CA =72 miles.

If the three cities A, B, C form a right-angled triangle on the map, then applying Pythagoras Theorem AB² +BC² =AC²

or, AC= √(AB² +BC²) must be satisfied.

Now, right-hand side of the above equation =√(45²+56²) =71.84 ≠ 72 (AC)

Hence, Right-hand side ≠ Left-hand side.

Therefore, the positions of the three cities do not form a right triangle. (Answer)  

6 0
4 years ago
A water sprinkler sends water out in a circular pattern. How large is the watered area if the radius of the watering pattern is2
Mamont248 [21]

Answer:

Step-by-step explanation:

Simply put, it is similar to finding the area of a circle.

Therefore, a=pi*r^2

a=pi*23^2

a=529pi

a=1661.9 ft^2

6 0
2 years ago
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