2 years ago

3. A rectangular field is 3 times as long as it is wide,

Mathematics

1 answer:

Sphinxa [80]2 years ago

7 0

The answer is A please Mark as brainless

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Step-by-step explanation:

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3 years ago

How do you do this and what would the answer be.

Natali [406]

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Please finish this equation and write the answer

olga55 [171]

Given:

The equation is:

$2540=\dfrac{22}{7}r^2(20)$

To find:

The solution for the given equation.

Solution:

We have,

$2540=\dfrac{22}{7}r^2(20)$

It can be written as:

$\dfrac{2540\times 7}{22\times 20}=r^2$

$\dfrac{17780}{440}=r^2$

$\dfrac{889}{22}=r^2$

Taking square root on both sides, we get

$\sqrt{\dfrac{889}{22}}=r$ [Radius cannot be negative]

$r=6.3568145$

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Therefore, the value of r is about 6.36 cm.

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3 years ago