The function f is one-to-one. Find its inverse.f(x) = x2 - 3, x ? 0
A. f-1(x) = 
+ 3, x ? 0
B. f-1(x) = 
, x ? 3
C. f-1(x) = 
, x ? -3
D. f-1(x) = 
+ 3, x < 0
Answer: C
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The following table shows, for males ages 55 to 64, the number of heart disease deaths H per 100,000 at time t years after 2000.
t 0 3 4 7 H 380 336 320 283?
A: Use the average rate of change from 2004 to 2007 to estimate the value of 
for 2004. Round your answer to two decimal places.B: Explain in practical terms the meaning of the number you found in part A. Round your answer to two decimal places.C: Use your answer from part A to estimate the number heart disease deaths per 100,000 males in 2006. Round your result to the nearest whole number.
What will be an ideal response?
Solve the problems.A small farm field is a square measuring 350 ft. on a side. What is the perimeter of the field? If you double the length of each side of the field, what is the new perimeter?
A. 1,400 ft., 2,800 ft. B. 700 ft., 1,400 ft. C. 350 ft., 1,400 ft. D. 700 ft., 2,800 ft.
Use the graph to find the requested value.Find x when f(x) = -2.
A. 2
B. 3
C. 0
D. 
Write in expanded notation.5147
A. 5,147,000 B. 5000 + 100 + 40 + 7 C. 500 + 40 + 1 D. 7000 + 400 + 10 + 5