3 years ago

How do you solve a 3x3 system of equations.

1 answer:

7 0

Answer: well it depends on what comes first but 9

Step-by-step explanation:

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Hatshy [7]

Answer:

A batch of 20 semiconductor chips is inspected by choosing a sample of 3 chips. Assume 10 of the chips do not conform to customer requirements.

a) Number of different samples = 20C3 = $\frac{20!}{3!(17!)}$ =1140

b) 2 good and one bad chip

Number of samples = 10C2 * 10C1 = 45 * 10 =450

c) 2 good 1 bad + 1 good 2 bad + 3 bad

Number of samples = 10C2 * 10C1 + 10C1 * 10C2 + 10C3

= $450+450+120=1020$

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3 years ago

posledela

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adelina 88 [10]

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Margaret [11]

A. Prism

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agasfer [191]

This is Q.a

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