3 years ago

The area of a circle is 100 square miles. What is the diameter?

Mathematics

1 answer:

adell [148]3 years ago

5 0

Answer:

The diameter of a circle with an area of 100 square miles is 20/√π miles.

Step-by-step explanation:

Area =100 = πr^2.

diameter = d = 2r.

100 = πr^2.

100/π = r^2.

√(100/π) = r.

10/√π = r.

d = 2r.

d = 2 * 10/√π.

d = 20/√π

You might be interested in

Help needed : <img src="https://tex.z-dn.net/?f=%20%5Cquad%20%5Csf%20%5C%3A%20%7Bx%7D%5E%7B2%7D%20%3D%201%20-%2037" id="

zzz [600]

Answer:

x = 6i, -6i

Explanation:

x² = 1 - 37 (subtract)

x² = -36 (square root both sides)

x = ±√-36 (breakdown)

x = +√-36, -√-36 (simplify)

x = 6i, -6i

3 0

2 years ago

Read 2 more answers

A bag contains 5 red, 4 green, and 3 blue marbles. What is the probability of randomly picking a green marble, replacing it, and

DIA [1.3K]

Answer:

1/12 is the correct answer on edge

Step-by-step explanation:

9 0

3 years ago

Read 2 more answers

Someone please help me answer this!!

aivan3 [116]

Answer:

8 units is the answer.

Step-by-step explanation:

Pythagorean theorem can be written as,

$d=\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\\\d=\sqrt{(9-9)^2 + (-7-1)^2}\\\\d=\sqrt{(0\\)^2+(-8)^2} \\\\d=\sqrt{64} \\\\d=8$

∴ d = 8 units

3 0

3 years ago

a prop for a school musical is cut from a sheet of cardboard. the shape is shown in the picture, what is the area of the shape?

Ulleksa [173]

Answer:

Step-by-step explanation:

area of rectangle: 6*4=24

area of top triangle: 4*2=8

24+8=32 total area

8 0

3 years ago

Please Help!

Deffense [45]

Answer:

Step-by-step explanation:

7 0

3 years ago