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:
(3/2) and (-7/3)
Step-by-step explanation:
6x^2+5x-21 factor
6*21=126
14*9=126 and 14-9=5
( 2x-3)(3x+7)
0= 2x-3 0=3x+7
3=2x -7=3x
3/2 =x -7/3=x
It would be 5.5y because y equals 1.
-6 - (-1 + 8)
-6 - ( 7)
= -13
