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horsena [70]
2 years ago
8

You are playing a game where you flip 3 coins, if you get all tails you lose $15, for each heads you get $3. What is your expect

ed profit from this game?
Mathematics
1 answer:
UkoKoshka [18]2 years ago
6 0

Answer:

expected profit=$-3

Step-by-step explanation:

1 tail=-5

1 head=3

3/2=1.5

1.5*3=4.5

1.5*-5=-7.5

4.5-7.5=-3

$-3

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Jerry started a used parts establishment. He marked up the items 30 percent of the purchase price. If one item sold for $715, wh
jek_recluse [69]

Answer:

Jerry paid $500.50.

Step-by-step explanation:

30 / 100 = 0.3

0.3 x 715 = 214.5

715 - 214.5 = 500.5

round to the nearest hundredth

3 0
2 years ago
5. Write each polynomial in standard form.<br> -X-9x² + 12
givi [52]

Answer:

-9x^2-x+12

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Hey, I'm on the same unit! -9x^2-x+12 is your answer.

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

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3 0
3 years ago
The orbital period, P, of a planet and the planet’s distance from the sun, a, in astronomical units is related by the formula P
mixas84 [53]

Answer:

9.54731702 astronomical units

Step-by-step explanation:

P=a^{\frac{3}{2} }

Substitute this value in the equation above:

29.5=a^{\frac{3}{2} }

⇒ (29.5)^{\frac{3}{2} } =a

⇒ a=9.54731702 astronomical units

Hence, its distance from the sun is 9.54731702 astronomical units.

7 0
3 years ago
Find the slope and the y-intercept of the line.
baherus [9]
What i got was y=-3x-1
4 0
2 years ago
On a particular map of Denmark, 1 inch represents 12 miles. What does 2 in a half inches on the map represent? Write a number se
Rufina [12.5K]

Answer:

30

Step-by-step explanation:

1 inch / 12 miles = 2.5 inch / x        Cross multiply

1*x = 12 * 2.5                                    Combine

x = 30 miles

6 0
2 years ago
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