Which situation can be represented by the expression below? (-400) (2) Maggie hiked downhill 400 feet in 2 hours. Maggie hiked 400 feet uphill and then 400 feet downhill. Maggie hiked uphill less than 400 feet every hour for 2 hours. Maggie hiked downhill approximately 400 feet every hour for 2 hours.

Maggie hiked downhill approximately 400 feet every hour for 2 hours.

Step-by-step explanation:

The best situation which represents the solution is that which says Maggie hiked downhill approximately 400 feet every hour for 2 hours. This is so because as she descends down the hill it represents a negative unlike when she climbs which is positive.

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.