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Verizon [17]
3 years ago
11

Help me out please fast

Mathematics
2 answers:
luda_lava [24]3 years ago
6 0

Answer:

2\sqrt{21}

Step-by-step explanation:

10^{2} - 4^{2} = 84

\sqrt{84} = 2\sqrt{21}

Advocard [28]3 years ago
4 0

Answer: 6 guess

Step-by-step explanation:

Sqrt 84

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An aircraft seam requires 24 rivets. The seam will have to be reworked if any of these rivets are defective. Suppose rivets are
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Answer:

Step-by-step explanation:

a)

p(d) - probability of a rivet being defective

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The probability of the seem needing to be reworked is equal to the probability that ANY of 24 rivets is defective

Thus the probability that none of the 25 rivets is defective is 1-p(r)

p(r) = 16%, thus 1-p(r) = 84%

1-p(r) = (1-p(d))^24

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0.84^(1/24) = 1-p(d)

==> 1-p(d) = 0.9927615998

==> p(d) = 1-0.9927

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b) given p(r) = 8%, thus 1-p(r) = 92%

1-p(r) = (1-p(d))^24

0.92 = (1-p(d))^24

0.92^(1/24) = 1-p(d)

==> 1-p(d) = 0.99653179446

==> p(d) = 1-0.9965

==> p(d) = 0.0035

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