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3 years ago

The radius of a circular clock is 10.5 inches. Which measrement is closest to the circumference of the clock in inches

Mathematics

2 answers:

Anvisha [2.4K]3 years ago

8 0

Answer:

66 in approx

Step-by-step explanation:

Given data

Radius= 10.5 inches

The circumference is given as

C= 2πr

Substitute

C=2*3.142*10.5

C=65.982

Hence the Circumference is 66 in approx

allsm [11]3 years ago

3 0

Answer:

65.9734457254 or 65.97

Step-by-step explanation:

c= pi x diameter

c= pi x (10.5 x 2)

c= pi x 21

= 65.9734457254

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A survey of 400 non-fatal accidents revealed that 268 involved a distracted driver using some kind of electronic device. Constru

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$CI=0.67\pm 1.96\sqrt{\frac{0.67(1-0.67)}{400} }\\CI=0.67\pm 1.96\sqrt{\frac{0.67(0.33)}{400} }\\CI=0.67\pm 1.96(0.0235)\\CI=0.67 \pm 0.0461\\CI=(0.67-0.0461, 0.67+0.0461)\\CI=(0.624, 0.7161)\\CI = (62.4 \%, 71.61 \%)$

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Learn more on confidence interval here: brainly.com/question/17212516

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