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mash [69]
3 years ago
6

Find the perimeter of the figure.

Mathematics
2 answers:
daser333 [38]3 years ago
8 0

Answer:

d. 78 in

Step-by-step explanation:

Perimeter of the figure = Perimeter of parallelogram - 14 + Perimeter of semicircle

= 2(21 + 14) - 14+  \frac{1}{2}  \times \pi \: d \\  \\  = 2 \times 35 - 14 +  \frac{1}{2}  \times 3.14 \times 14 \\  \\  = 70 - 14 + 3.14 \times 7 \\  \\  = 56 + 21.98 \\  \\  = 77.98 \:  \\  \\   \approx \: 78 \: in

Aleksandr-060686 [28]3 years ago
7 0

Answer:

Option : D

Step-by-step explanation:

Hope it helps you!

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Answer:

You should claim 10.5325 years on your warranty.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 13, \sigma = 1.5

Want's to replace no more than 5% of the products.

This means that the warranty should be 5th percentile, that is, the value of X when Z has a pvalue of 0.05. So X when Z = -1.645.

Z = \frac{X - \mu}{\sigma}

-1.645 = \frac{X - 13}{1.5}

X - 13 = -1.645*1.5

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Step-by-step explanation:

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Step-by-step explanation:

Hope this helps let me know :)

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Read 2 more answers
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