Daniel wants to predict how far he can hike based on the time he spends on the hike. He collected some data on the time hours) and distance in kilometers) of some of his previous hikes. A line was fit to the data to model the relationship

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.

apex answer is: true.

15 / 2 = 7.5

100 / 7.5 = 13.