Simplify
7x^2 - 2x + 19 + 2x^2 - 7x + 4
Collect like terms;
(7x^2 + 2x^2) + (-2x - 7x) + (19 + 4)
Simplify
<u>9x^2 - 9x + 23</u>
<h3><u>Radius as function of volume is:</u></h3>
<em><u>Solution:</u></em>
<em><u>The volume of cone is given as</u></em>:
Where,
r is the radius
h is the height
From given,
height = 20 inches
From formula,
Rearrange , so that r is alone in left side of equation
Substitute h = 20
Thus, radius as function of volume is:
8! = 8 x 7 x 6 x 5 x 4 x 3 x 2 = 40320.