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3 years ago

The circumference of a circle is 15 ft. find its area writing 3.14 for pi PLS

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

3 0

Answer:

17.9140127389 FT²

Step-by-step explanation:

Circumference is found using the formula 2πr.

15=2πr

r=15/(2*3.14)

r=2.38853503185

Area is found using the formula πr²

A= πr²

=3.14( 2.38853503185²)

=17.9140127389

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3 years ago

10-d = -34-5d solve this equation

algol13

<h3><u>Explanation</u></h3>

Given the equation.

$10 - d = - 34 - 5d$

Solve the equation for d-term.

Because we cannot subtract or add up constants and variables, we simply move the same variable term to the same side and constant term to the same constant side.

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Answer Check

Substitute d = -11 in the equation.

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The equation is true for d = -11.

<h3><u>Answer</u></h3>

<u> $\large \boxed{d = - 11}$ </u>

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