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nadezda [96]
2 years ago
14

If the area of the circle is 225pi what is the diameter

Mathematics
1 answer:
Stells [14]2 years ago
8 0

Answer:

30cm

Step-by-step explanation:

Area is πr²

So,

πr²=225π

r=√225

r=15cm

Diameter=2r=30

Maths is easy peasy

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According to records in a large hospital, the birth weights of newborns have a symmetric and bell-shaped relative frequency dist
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Answer:

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Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 6.8 pounds

Standard Deviation, σ = 0.5

We are given that the distribution of  birth weights is a bell shaped distribution that is a normal distribution.

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P(x < -1) = 0.159 = 15.9\%

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