Find the domain of 
.
A. all real numbers except x = 8 and x = -4
B. all real numbers
C. all real numbers except x = 4 and x = -8
D. all real numbers except x = -4, x = 4 and x = -8
E. all real numbers except x = -8
Answer: C
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Simplify.(12x6 + 2x2)-2x3
A. -28x9 - 28x5 B. -28x3 C. -24x9 + 2x2 D. -24x9 - 4x5
Solve the problem.A surveyor standing 56 meters from the base of a building measures the angle to the top of the building and finds it to be 36°. The surveyor then measures the angle to the top of the radio tower on the building and finds that it is 50°. How tall is the radio tower?
A. 13.96 meters B. 9.98 meters C. 9.31 meters D. 26.05 meters
Simplify.
A. 
B. 
C. 
D. 
Rationalize the denominator. Simplify, if possible. Assume that any variables represent positive real numbers. 
A. 
B. 
C. 
D. 