What is the approximate volume of a tree trunk if the trunk is 13 feet tall with a circumference of 4.5 feet?
a.17.16 ft^3
b.21.17 ft^3
c.33.09 ft^3
d.27.14 ft^3

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

i do not know the answer

step-by-step explanation: