Factor the difference of two squares.81x2 - 25
A. (9x + 5)2
B. (9x - 5)2
C. (81x + 1)(x - 25)
D. (9x + 5)(9x - 5)
Answer: D
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Find the domain of the rational function.f(x) = 
A. All real numbers except 0 B. All real numbers except 6 and 8 C. All real numbers except -6 and -8 D. All real numbers except 2 and -2
Solve the problem.The length of the base of an isosceles triangle is 42.59 meters. Each base angle is 34.17°. Find the length of each of the two equal sides of the triangle. Round your answer to the hundredths place.
A. 51.48 m B. 37.92 m C. 31.37 m D. 25.74 m
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 3csc x, y = 3
, 
? x ? 
A. ?2 + 6? B. 3?2 - 9? C. 9?2 + 18? D. 9?2 - 18?
The graph of the given function is drawn with a solid line. The graph of a function, g(x), transformed from this one is drawn with a dashed line. Find a formula for g(x).f(x) = 
A. g(x) = 
- 2
B. g(x) = 
C. g(x) = 
D. g(x) = 2x3