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kirill [66]
3 years ago
8

What is the exact area of a circle with radius 5?

Mathematics
2 answers:
shutvik [7]3 years ago
7 0

<em>t</em><em>h</em><em>e</em><em> </em><em>r</em><em>a</em><em>d</em><em>i</em><em>u</em><em>s</em><em> </em><em>o</em><em>f</em><em> </em><em>t</em><em>h</em><em>i</em><em>s</em><em> </em><em>q</em><em>u</em><em>e</em><em>s</em><em>t</em><em>i</em><em>o</em><em>n</em><em> </em><em>2</em><em>5</em><em>p</em><em>i</em>

natali 33 [55]3 years ago
4 0

Answer:

Step-by-step explanation:

(1) The formula for the area of a circle of radius r is A = πr².

If the radius is 5 units, then the exact area of the circle is A = π(5 units)², or A = 25π units².

The third possible answer is the correct one.

(2) To solve -2x > -10, we must isolate x.

Divide both sides by -2, remembering that if we divide an inequality by a negative number, we must reverse the direction of the inequality sign:

-2x > -10

-----   -------  →  x < 5

 -2      -2

The first possible answer is the correct one:  Divide both sides by -2.

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