Simplify.
- 
A. 
B. 
C. 
D. 
Answer: A
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Work the problem. Give the answer in scientific notation, rounded to two decimal places, unless otherwise indicated.Assume that a computer can do one calculation in 1.42 × 10-7 seconds. How long would it take the computer to do a trillion (1012) calculations?
A. 1.42 × 105 sec B. 7.04 × 1019 sec C. 1.42 × 1012 sec D. 7.04 × 1018 sec
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions.log4(16x)
A. 2x B. 2 + log4 x C. 2 log4 x D. 8 + log4 x
Suppose ? is an angle in standard position. Given an equation of the terminal side of ?, give the exact value of the indicated trigonometric function(s). Rationalize denominators if necessary.5x + 7y = 0, Quadrant IVFind 
A. - 
B. 
C. 
D. 
Solve the rational equation.
+ 
= 
A. 
B. 
C. 
D. 