Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.x4 + 16x2 - 225
A. (x + 3)(x - 3)(x2 + 25)
B. (x - 3)2(x2 + 25)
C. (x2 - 9)(x2 + 25)
D. (x + 3)(x - 3)(x + 5)(x - 5)
Answer: A
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Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round to four decimal places.log1020
A. 0.3010 B. 2.3010 C. 0.7686 D. 1.3010
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log5
A. 
log5x - 2
B. - 2log5x
C. log5x - 2
D. 10 - 
log5x
Solve the problem.Is there origin symmetry for the rational function f(x) = 
?
A. Yes B. No
Solve.One end guy wire is attached to the top of a 17-foot pole and the other end is anchored into the ground 14 feet from the base of the pole. Find the length of the guy wire. Round to the nearest tenth foot.
14 feet
A. 31 feet B. 21.4 feet C. 22 feet D. 31.6 feet