A hemisphere. The formula for a hemisphere is V = (2 / 3)πr^3<span>. r is the radius. if you are given a radius, plug it into the formula to find the answer if a radius is given. </span>
Try this: x³+4x²+x-6=0 1) To re-write the equation into form: 1*x³+4*x²+1*x-6=0, the note 1+4+1=6, it means x=1 2) to re-write the equation into form: (x-1)(x²+5x+6)=0 (x-1)(x+2)(x+3)=0 3) Answer: -3;-2;1.