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Bas_tet [7]
3 years ago
7

What is the the radius of a circle with the circumference of 28

Mathematics
1 answer:
algol133 years ago
5 0

Answer:

4.46

Step-by-step explanation:

The formula for diameter (Yes, diameter, stick with me here.) is d = c/π. Plug in your circumference; d = 28/π, which equals 8.912676813 rounded to the nearest billionth. The formula for radius is d/2. So, 8.91267813/2 is 4.456338407 (rounded to the nearest billionth) generally, you are supposed to round to the nearest hundredth. Unless the question says otherwise, the 6 rounds the 5 up, leaving you with 4.46 as the final answer.

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4 years ago
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A normal distribution has a standard deviation equal to 39. What is the mean of this normal distribution if the probability of s
Naily [24]

Answer:

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Step-by-step explanation:

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

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This means that when X = 209, Z has a pvalue of 1-0.0228 = 0.9772. So when X = 209, Z = 2.

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3 years ago
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shepuryov [24]

Answer:

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