Solve the problem. Assume all variables represent nonnegative real numbers.For f(x) = 
and g(x) = 
- 
, find (f ? g)(x).
A. (f ? g)(x) = x6
- x5
B. (f ? g)(x) = x7
- x4
C. (f ? g)(x) = x5
- x5
D. (f ? g)(x) = x46
- x36
Answer: A
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Perform the indicated operation without the use of a calculator and express each answer in decimal notation.
A. 0.00142857 B. 700 C. 100 D. 0.07
Find an equation of the line that contains the given pair of points. Write the equation in the form y = mx + b.(2, -2) and (-10, -2)
A. y = -10 B. x = 2 C. y = -2 D. x = -2
Find the perimeter. Use 3.14 for ? when needed.
A. 9.14 in. B. 11.14 in. C. 14.28 in. D. 12.28 in.
Solve the problem.The body-mass index (BMI) is calculated using the equation BMI = 
, where w is in pounds and h is in inches. Find the rate of change of BMI with respect to weight for Sally, who is 65" tall and weighs 
If both Sally and her brother Jesse gain the same small amount of weight, who will see the largest increase in BMI? Jesse is 69" tall and weighs 190 lbs.
A. 0.166, Jesse B. 0.166, Sally C. 19.967, Sally D. 19.967, Jesse