2 years ago

Greatest common factor 3a^3+9a^2

Mathematics

1 answer:

BaLLatris [955]2 years ago

7 0

Answer:

27A+81A =108

Step-by-step explanation:

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Step-by-step explanation:

Let X be the random variable denoting the net gain(in dollars) for a single trial(one bet).

Assuming that each number in the wheel is equally likely, probability of the outcome being a victory is $\frac{1}{38}$ and probability of failure is $\frac{37}{38}$ . For a win, X takes value 35 and for a loss X takes value -1. So the model is,

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$P(X=i) = 0 \;if\; i \neq 38, i\neq -1$

The mean for one bet is $E(X) = \sum xP(X=x) = 35\times\frac{1}{38} - 1\times\frac{37}{38} = -0.0526$

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Greatest common factor 3a^3+9a^2​

Greatest common factor 3a^3+9a^2