If possible, simplify the expression. If any variables exist, assume that they are positive.8
- 3x
A. 11
B. 5x
C. 5x
D. 8
- 3x
Answer: C
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Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log5
A. 3log5x + 6log5y
B. 6log5y - 3log5x
C. 3log5x - 6log5y
D. 
log5
Solve.The velocity v of a falling object (ignoring air resistance) is directly proportional to the time t of the fall. If, after 4 seconds, the velocity is 128 feet per second, what will its velocity be after 9 seconds?
A. 
foot/second
B. 288 feet/second
C. 133 feet/second
D. 285 feet/second
Solve quadratic equation by factoring.3x2 - 17x - 6 = 0
A. -3, 6
B. - 
, 6
C. 
, - 
D. - 
, 3
Determine the approximate area of the given circle, using 3.14 for ?. Round the answer to the nearest hundredth.
A. 78.5 ft2 B. 1962.5 ft2 C. 157 ft2 D. 490.63 ft2