Question

Two car washers, Michelle and Nancy, are working on your car. Michelle can complete the work in 6 hours, while Nancy can complete the work in 3 hours. How many hours does the car washing take if they work together?
3
2
six eighths
four thirds

Question 36 (Multiple Choice Worth 1 points)

(04.07)

Use the table of the function f(x) = x4 - 4x to answer this question:

x

f(x)
-2

24
-1

5
0

0
1

-3
2

8


What is the average rate of change from x = -1 to x = 2?

-3
-1
1
3

Question 37 (Multiple Choice Worth 1 points)

(02.08)

Simplify (4x2+ 12x