Write the expression in expanded form.log 
A. log(2x + z) - 7 log y
B. (log x)2 + log z - (log y)7
C. 2 log x + log z - 7 log y
D. 2 log x ? log z - 7 log y
Answer: C
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (t2 - 3)i + ( 2t - 9)j + 8k
A. a = 
T + 
N
B. a = 
T + 
N
C. a = 
T + 
N
D. a = 
T + 
N
Decide whether the statement is true or false.The corresponding angles of two parallel lines cut by a transversal are always supplementary.
A. True B. False
Translate to a system of two equations, then solve.Justin and Tisha are hiking north along the same trail. Tisha is hiking at a comfortable rate of 2 mph and passes a large hollow hickory tree at 4:36 PM. Justin is speeding along at a brisk rate of 4 mph and passes the tree at 5:06 PM. At what time will Justin catch up to Tisha?
A. 5:31 PM B. 5:36 PM C. 5:51 PM D. 5:46 PM
Rewrite as a single logarithm.logx x + logx y
A. logx xy
B. logx (x + y)
C. logx x ? logx y
D. logx 