1. what is the volume of a pyramid with base area b = 8 ft2 and height h = 12 ft?

a.
64 ft3

b.
32 ft3

c.
96 ft3

d.
24 ft3

2. the base of a square pyramid has a side length of 7 inches. the height of the pyramid is 19 inches.

what is the approximate volume of the pyramid?

a.
133 in3

b.
177 in3

c.
310 in3

d.
931 in3

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.

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b