A design for a traffic cone is shown below. In order for it to have a solid foundation the designers want to make the base and cone out of solid plastic. If the plastic is $0.75 per cubic cm, how much will it cost them to make 5 cones? Show all of your work, and approximate pi using 3.14.)

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.

answer: 8

step-by-step explanation: if you add the possibilities 5 different flavor and 3 different sizes 5+3=8

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