The surface area of a cylinder with circular bases of radius <em>r</em> and height <em>h</em> is equal to the sum of the areas of the two circular faces and the area of the rectangular lateral surface:
<em>A</em> = 2π<em>r</em>² + 2π<em>rh</em>
If you know the height <em>h</em>, then you can solve the quadratic equation for <em>r</em>.
Answer:
-20n^2-39n-15
Step-by-step explanation:
Answer:
2 + 2 = 4
Step-by-step explanation:
91$ per day you divid 455$ by the 5 days and get 91$
Answer:
C
Step-by-step explanation:
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