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3 years ago

10

One circular table has a diameter of 9 ft, and another circular table has a diameter of 20 ft. How much greater is the area of t

he larger table? Round to the nearest whole number.

2 answers:

Nat2105 [25]3 years ago

7 0

I got that it was about 2 times bigger.

Lubov Fominskaja [6]3 years ago

3 0

1) try to find the area of both cylinders
$\pi r^2 h$

2) subtract

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Salsk061 [2.6K]

She has to score at least 86 on her fifth test.

Further explanation:

We will use the average formula to find the fifth value.

Given

$Average\ required=80\\x_1=81\\x_2=73\\x_3=84\\x_4=76\\x_5=?$

We have to find x5

The formula for average is:

$x=\frac{Sum\ of\ values}{Total\ number\ of\ values}\\Here,\\n=5\\So,\\x=\frac{x_1+x_2+x_3+x_4+x_5}{5}\\Putting\ values\\80=\frac{81+73+84+76+x_5}{5}$

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She has to score at least 86 on her fifth test.

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