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ludmilkaskok [199]
2 years ago
8

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

Mathematics
2 answers:
Nataly_w [17]2 years ago
6 0
The radius of the circle would be 1 mile.
The diameter is 2r(pi), so the answer would be 2\pi
Ann [662]2 years ago
5 0
Your answer would be 2r.


hope that helped
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The area of a rectangular wall of a barn is 100 square feet. It’s length is 10 feet longer than twice it’s width. Find the lengt
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Answer:

The length would be 30 and the width would be 20

Step-by-step explanation:

For the purpose of this, we'll set the width as x. We can then define the length as x + 10 since we know it is 10 ft longer than the width. Now we can use those along with the perimeter formula to solve for the width.

P = 2l + 2w

100 = 2(x + 10) + 2(x)

100 = 2x + 20 + 2x

100 = 4x + 20

80 = 4x

20 = x

Now since we know that the width is 20ft, we can add 10ft to it to get the length, which would be 30ft.

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One last question, Line segment XZ has endpoints X(-2, 4) and Z(-8, -6). If Y is the midpoint of XZ, find the length of XY. Roun
Natasha_Volkova [10]
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Firstly, we need to find where midpoint Y is. Plug in points X and Z into the midpoint formula to solve as such:

Y=(\frac{-2+(-8)}{2},\frac{4+(-6)}{2})\\\\Y=(\frac{-10}{2},\frac{-2}{2})\\\\Y=(-5,-1)

Now that we have the coordinates of Y, plug in points X and Y into the distance formula to find out their lengths as such:

XY=\sqrt{(-2-(-5))^2+(4-(-1))^2}\\XY=\sqrt{3^2+5^2}\\XY=\sqrt{9+25}\\XY=\sqrt{34}\approx 5.8

<u>XY is approximately 5.8 units.</u>

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Answer:

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Step-by-step explanation:

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1 year ago
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