3 years ago

Plz help me plzzzzzzz

Mathematics

1 answer:

ycow [4]3 years ago

8 0

Answer:

162.5

Step-by-step explanation:

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A game has an expected value to you of $100. it costs $500 to play, but if you win you receive $100,000 (including your $50

tekilochka [14]

Let $X$ be a random variable denoting the amount of winnings in any given round of the game. There is some probability $p$ of winning where $P(X=99,500)=p$ , while $P(X=-500)=1-p$ , assuming these are the only two possible outcomes. So we have

$\mathbb E[X]=\displaystyle\sum_xxP(X=x)=99,500p-500(1-p)=100$

$100,000p-500=100\implies p=\dfrac3{500}=0.006$

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3 years ago

Find the measure of x.

Ratling [72]

<h3>Answer: B. x = 6</h3>

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Explanation:

Since the vertical lines are parallel, this means the alternate exterior angles shown are congruent.

Set them equal to each other and solve for x.

15(x+2) = 120

15x+30 = 120

15x = 120-30

15x = 90

x = 90/15

x = 6

Or we could have the steps like this

15(x+2) = 120

x+2 = 120/15

x+2 = 8

x = 8-2

x = 6

7 0

2 years ago

20 POINTS! Questions 7-10 please

nignag [31]

The picture is unclear so I cannot really help. I'm sure I could if it was clearer though.

6 0

3 years ago

All I need is the answer. Will be marked brainiest if it is absolutely correct.

NARA [144]

What’s the question?

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3 years ago

What is the solution for the following system of equations?

rosijanka [135]

Answer:

y=2

Step-by-step explanation:

Multiply -3(2) which gives -6, -6+8=2

Thus, y=2

7 0

3 years ago