Find a symbolic representation for f-1(x).f(x) = 
A. f-1(x) = (x - 9)2
B. f-1(x) = 
C. f-1(x) = x2 + 9, x ? 0
D. Not a one-to-one function
Answer: C
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Solve.A machinist must cut 9 strips of metal that are each 2 ft 
in. long. What is the total length of metal needed in inches?
Fill in the blank(s) with the appropriate word(s).
Find the sum Sn of the first n terms of the geometric sequence.3, 
, 
, 
, . . . ; n = 8
A. 
B. 
C. 
D. 
Without graphing the function, state the shift(s) that are applied to the graph of 
to graph the given function. If the graph of 
must be rotated about the x-axis, state this.f(x) = (x + 50)2 - 90
A. left 50 units, down 90 units B. right 90 units, up 50 units C. right 50 units, down 90 units D. left 90 units, up 50 units
Rewrite the radical expression using rational exponents. Assume all variables represent nonnegative real numbers.
4
A. (5xy)8/3 B. (5x2y)3/4 C. (5x2y)12 D. (5x2y)4/3