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Harlamova29_29 [7]

2 years ago

13

Karen and Bill collect coins. Karen has x coins. Bill has 9 coins fewer than two times the number of coins Karen has. Write and

simplify an expression for the total number of coins Karen and Bill have.

1 answer:

Eduardwww [97]2 years ago

6 0

Karen = x
bill = 2x - 9
total = x + 2x - 9 = 3x - 9

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Suppose that the probabilities are 0.4, 0.3, 0.2, and 0.1, respectively, that 0, 1, 2, or 3 power failures will strike a certain

defon

Answer:

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Step-by-step explanation:

Since the mean is computed as

mean = E(x) = ∑ x * p(x) for all x

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since the variance can be calculated through

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but easily in this way

variance = E(x²) - [E(x)]² , then

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7 0

3 years ago

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Mamont248 [21]

From right triangle trigonometry, we have the following:

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Dmitriy789 [7]

Answer:

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Urgent Please Help!!

Alenkinab [10]

I believe it’s X = 4

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