Please help i have to turn this in today

Mathematics

2 answers:

kondaur [170]3 years ago

8 0

The formula for the area of a circle is πr^2. Plug in the given radius for r. You now have π*2.2^2. Square the 2.2 first. 2.2^2 is 4.84. Now take that answer of 4.84 and multiply it by π or 3.14 as indicated in the directions for the problem. 4.84 * 3.14 = 15.1976
Now round that answer to the nearest tenth as the directions said to.

Your answer should be:
15.2 ft.^2

Xelga [282]3 years ago

4 0

The area of the circle is 0.5.

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Convert all the equations to slope-intercept form:
$2y-4x=3 \ \ \ |+4x \\
2y=4x+3 \ \ \ |\div 2 \\
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$A. \\
-2y+4x=1 \ \ \ |-4x \\
-2y=-4x+1 \ \ \ |\div (-2) \\
y=2x-\frac{1}{2} \\ \\
B. \\
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$C. \\
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y=2x+3 \\ \\
D. \\ 
-2y-4x=3 \ \ \ |+4x \\
-2y=4x+3 \ \ \ |\div (-2) \\
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Lines A, B and C have the same slope as the line 2y-4x=3, so they are parallel and don't intersect it.
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The answer is D.

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