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Vadim26 [7]
3 years ago
10

Will give brainliest answer

Mathematics
2 answers:
NemiM [27]3 years ago
4 0

Answer:

A = 3.13841

Step-by-step explanation:

Circumference: C = 2πr

Area of a Circle: A = πr²

Step 1: Find <em>r </em>using circumference formula

6.28 = 2πr

r = 6.28/2π

r = 0.999493

Step 2: Plug in <em>r </em>in area formula

A = π(0.999493)²

A = 3.13841

saw5 [17]3 years ago
3 0

Answer:

3.52

Step-by-step explanation:

6.68 = c

6.68/2 = 3.34

3.34/3.14 = 1.06

1.06^2 * 3.14 = 3.52

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Step-by-step explanation:

The area of a rectangle is calculated using the following formula.

A = Lx   (1)

Where L is the length and x is the width of the rectangle

In this case we know that the length of the rectangle is 5 inches greater than its width. This means that:

L = x + 5   (2)

Also The area of a rectangle can be represented by the equation x^2 + 5x = 300

so to find the width x we solve the equation

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In this case note that:

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x=\frac{-5\±\sqrt{(5)^2-4(1)(-300)}}{2(1)}

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x_1=\frac{-5+35}{2}  →  x_1=15

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We take the positive solution x=15\ in

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