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Paraphin [41]
2 years ago
9

The circumference of a circle is 64 pi. What is the radius of the circle?

Mathematics
1 answer:
marysya [2.9K]2 years ago
8 0

Answer:

maybe 8

Step-by-step explanation:

BRAINLIEST PLEASE!!!!!!!

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PLEASE HELP, ACT PRACTICE ​
vagabundo [1.1K]
3/2? I’m not much of a math person so I don’t know for sure !!
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2. Al and Ike decide to drive to Sandy Shores Lake. As they leave home in Summerville, they notice that the car odometer reads 1
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When they leave home, odometer reads 12,544.....when they arrive in Winterton, the odometer reads 12,671.....this means they have already driven (12,671 - 12,544) = 127 miles.....and now they have 48 more miles to go......so the trip to Sandy Shores from Summerville is (127 + 48) = 175 miles
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Can someone help me with this please
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63.6

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\sqrt{45^{2} + 45^{2}} = \sqrt{4050}

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Ronald is 26 years old and starting an IRA (individual retirement account). He is going to invest $200 at the beginning of each
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The formula for the future value A, given annual interest rate r, number of years t, and deposit amount P can be written as

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... A = 200(1+.0275/12)((1+.0275/12)^(12·39) -1)/(.0275/12) ≈ 167,868.30

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6 0
3 years ago
A survey conducted in July 2015 asked a random sample of American adults whether they had ever used online dating (either an onl
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Answer: (0.081,\ 0.163)

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Let \hat{p} be the sample proportion.

As per given , we have

n= 411

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Critical value for 99% confidence : z_{\alpha/2}=2.576

Confidence interval for population proportion :-

\hat{p}\pm z_{\alpha/2} (se)\\\\=0.122\pm (2.576)(0.016)\\\\=0.122\pm0.041216\\\\=(0.122-0.041216,\ 0.122+0.041216)\\\\=(0.080784,\ 0.163216)\approx(0.081,\ 0.163)

Hence, the 99% confidence interval for the proportion of all US adults ages 55 to 64 to use online dating : (0.081,\ 0.163)

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3 years ago
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