2 years ago

7,920 yd = mi ?? but, as a fraction.

Mathematics

1 answer:

frosja888 [35]2 years ago

4 0

Hi! There are 4.5 miles in 7,920 yds

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What is 0.85714286 rounded to the nearest hundredth

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Answer:

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Step-by-step explanation:

Rounding rules.

4 and below, round down.

5 and above, round up.

We are going to look at the thousandths place to round to the hundredths place.

0.857 -> 0.86

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The following equation is being multiplied by the LCD. Complete the multiplication to eliminate the denominators

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find the circumference and the area of the circle with the radius 9m use the value 3.14 for it do not round your answer be sure

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Explanation:

The circumference and the are of a circle with radius r

are:

$\begin{gathered} A=\pi r^2 \\ C=2\pi r \end{gathered}$

If we use pi = 3.14 and the radius is 9m:

$A=3.14\cdot(9m)^2=3.14\cdot81m^2=254.34m^2$ $C=2\cdot3.14\cdot9m=56.52m$

Answers:

• Area: ,254.34 m²

• Circumference: ,56.52 m

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