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Colt1911 [192]
2 years ago
6

Mariah is playing a simple game of dice. For every 1, 4, or 6 rolled, Mariah will

Mathematics
1 answer:
Verdich [7]2 years ago
3 0

Answer:

Correct option: B -> win $1

Step-by-step explanation:

Mariah will win for the values of 1, 4 or 6.

These are 3 out of 6 possible values of the die, so the probability of winning is 3/6 = 50%, and the probability of losing is 100% - 50% = 50%

The expected value for winning cases is the value times the probability, so:

E(win) = 4 * 0.5 = 2

The expected value for losing cases is:

E(lose) = -2 * 0.5 = -1

So the final expected money is:

E(total) = E(win) + E(lose) = 2 - 1 = 1

So she can expect to win $1

Correct option: B

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fredd [130]

Answer:

f(x) = -3(x+3)(x-1)

Step-by-step explanation:

x = -3 & 1; f(x) = 9

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f(0) = a(x-r1)(x-r2) = 9; 9 = a(0-(-3))(0-1)

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2 years ago
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The second question
stich3 [128]

2)

A: 5

B: 9a & a (from a/6)

C: -5 & ÷4

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definitions:

term: something separated by a sign/symbol (÷, ×, - +) (a/6 are two separate terms, ÷)

constant terms: variables that can be solved.

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Hope this helps :)
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Carry learning!

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