The viera family is traveling from philadelphia to orlando for vacation the equation y = 1000 - 65x represents the distance in miles remaining in their trip after x hours.

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.

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half

answer: 1475

step-by-step explanation:

becuase you have to know what they are asking you

step-by-step explanation:

a'(12.5,11.25)

slope=(y1-y2)/(x1-x2)