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vovikov84 [41]
2 years ago
6

The circumference of a circle is divided into twelve equal arcs. The measure of each arc is

Mathematics
1 answer:
elena-14-01-66 [18.8K]2 years ago
3 0
Circumference of a circle = 2πr
It's divided into 12 parts, so each part = 2πr/12 = πr/6

In short, Your Answer would be πr / 6

Hope this helps!
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In a production process, the probability of manufacturing a defective rear view mirror for a car is 0.075. Assume that the quali
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Answer:

The probability that the 3rd defective mirror is the 10th mirror examined = 0.0088

Step-by-step explanation:

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To find the probability that the 3rd defective mirror is the 10th mirror examined:

Let X be the random variable that follows a negative Binomial expression.

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X \sim  -ve  \ Bin (k = 3 , p = 0.075)\\ \\ P(X=x)= \bigg (^{x-1}_{k-1}\bigg)\times P^k\times (1-P)^{x-k}

= \bigg (^{10-1}_{3-1}\bigg)\times 0.075^3\times (1-0.075)^{10-3}

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= \dfrac{9!}{2!(9-2)!}\times 0.075^3\times (0.925)^{7}

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5 0
2 years ago
5 (10k + 1) + 2 (2 + 8k)
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66k+9

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3 years ago
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this would be your answer hope it helps!

say, if this is correct wouldn't mind hitting that brainliest would ya?

5 0
3 years ago
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