If the function is one-to-one, find its inverse. If not, write "not one-to-one."f(x) = 6x2 - 9, x ? 0
A. not a one-to-one
B. f-1(x) = 
, x ? -9
C. f-1(x) = 
D. f-1(x) = 
, x ? -9
Answer: D
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Solve the problem.A cancer patient undergoing chemotherapy is injected with a particular drug. The function 
gives the number of milligrams D of this drug that is in the patient's bloodstream h hours after the drug has been administered. How many milligrams of the drug were injected? To the nearest milligram, how much of the drug will be present after 2 hours?
Fill in the blank(s) with the appropriate word(s).
Solve the equation.
= 2
A. {6, -2} B. {2} C. {-6, -2} D. no real solution
Find the indicated part of the arithmetic sequence.Find term 16 of the sequence that has a first term of 1 and a common difference of 
.
A. - 4
B. 6
C. - 
D. 
Describe the inverse of the statement.Divide x by 2 and subtract 8.
A. Multiply x by 2 and add 8.
B. Divide x by 
and subtract -8.
C. Subtract 8 from x and divide the result by 2.
D. Add 8 to x and multiply the result by 2.