1. A sample of 4 different calculators is randomly selected from a group containing 20 that are defective and 10 that have no defects. What is the probability that all four of the calculators selected are defective? Give your answer as a percent rounded to the nearest tenth of a percent.

Q: 2p=18

A:

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A:

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A:

Q: Find the area of the shaded region. The graph to the right depicts IQ Scores of adults, and those…

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Q: 5 1 1 + 2r dr

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Q: 7 11

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Q: Todt 5(-37+4)

A: Given,   ∫  -3t+410dt

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Q: 1 +1

A: Given  1+1=

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A: ∫x39+x8dx

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A: Given: x+9=12

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A: given e2z=3+i to find the value of z, take log on both sides

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A: The given integral is √(4-x2) limit from 0 to 2.

Q: 1+n=15

A: -1+n=15

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Q: Find fre dz |2e*dx

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A: We need to find the sum of 7 and 9

Q: 47 19

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Q: n=5 II

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Q: 7k = 91

A: We will find the value of k in the following step.

Q: 2t2 – 100 = 0 %3D

A: The solution is, t = ±5√2  The detailed solution is as follows below:

Q: Answer 2

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Q: dx 4е2я — 8ет + 5

A: This question can be solved using the concept of special integrals.

Q: 6 √275

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Q: 300÷2

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Q: -4c +2 ≥10

A: The given inequality is: -4c+2≥10

Q: find 4 j! j30

A: Simply expand the summation and add all values after calculation.

Q: N 11 9

A: Here given that N/9=11

Q: 6z=36

A:

Q: D-G please

A: Given information- Population mean, μ = 8 minutes Sample size, n = 14 Sample mean, x-bar = 9.1…

Q: x – 1 Find + C

A: The given integral, ∫x-1x2dx

Q: -2/80 ->

A: Given: -2, ∠30

Q: コェ tx

A: we have to divide the following