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Daniel [21]
3 years ago
9

Two rectangles are similar. If the height of the first rectangle is 3 inches, and the height of the second rectangle is 9 inches

, by what factor was the first rectangle changed?
a.) 1
b.) 3
c.) 6
d.) 9

(HINT:: it's NOT choice C) Thanks!! :)
Mathematics
2 answers:
Mrac [35]3 years ago
8 0
The answer is B.) 3

I hope this helped!
SCORPION-xisa [38]3 years ago
5 0
Yes b......................
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Step-by-step explanation:

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90.67% probability that John finds less than 7 golden sheets of paper

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For each container, there are only two possible outcomes. Either it contains a golden sheet of paper, or it does not. The probability of a container containing a golden sheet of paper is independent of other containers. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

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This means that p = 0.3

14 of these containers of paper.

This means that n = 14

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P(X < 7) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6)

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P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

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P(X = 1) = C_{14,1}.(0.3)^{1}.(0.7)^{13} = 0.0407

P(X = 2) = C_{14,2}.(0.3)^{2}.(0.7)^{12} = 0.1134

P(X = 3) = C_{14,3}.(0.3)^{3}.(0.7)^{11} = 0.1943

P(X = 4) = C_{14,4}.(0.3)^{4}.(0.7)^{10} = 0.2290

P(X = 5) = C_{14,5}.(0.3)^{5}.(0.7)^{9} = 0.1963

P(X = 6) = C_{14,6}.(0.3)^{6}.(0.7)^{8} = 0.1262

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