Find the domain and range of the inverse of the given function.f(x) = 
A. Domain and range: all real numbers
B. Domain: all real numbers; range: [0, ?)
C. Domain: [4.9, ?); range: [0, ?)
D. Domain: all real numbers; range: [4.9, ?)
Answer: A
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Solve. Give an exact answer unless indicated otherwise.It can be shown that if the angle of elevation from an observer to the top of an object is A and the angle of elevation d ft closer is B, then the height of the object is given by h = 
ft.Find A if 
and 
Give an answer in degrees to the nearest hundredth.
A. 19.53° B. 35.36° C. 30.60° D. 25.32°
Determine the largest open intervals of the domain over which the function is increasing, decreasing, and constant.
A. Increasing never; Decreasing (-?, -2) ? (2, ?) B. Increasing (-2, 2); Decreasing (-?, -2) ? (2, ?) C. Increasing (2, ?); Decreasing (-?, -2) D. Increasing (-?, -2) ? (2, ?); Decreasing never
Solve.12.6 is 28% of what number?
A. 450 B. 45 C. .45 D. 4.5
Solve the problem.Let f(x) = 
. Find a function y = g(x) so that (f ? g)(x) = x.
A. g(x) = 
B. g(x) = 
C. g(x) = 
D. g(x) = x(x - 4)