Rationalize the denominator.
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.A child on a swing initially swings through an arc length of 12 meters. The child stops pushing and sits patiently waiting for the swing to stop moving. If friction slows the swing so the length of each arc is 80% of the length of the previous arc, how far will the child have traveled before the swing stops?
A. 25 m B. The child will travel an infinite distance. C. 24 m D. 60 m
Fill in the blank with one of the words or phrases listed below.
The 
of a polygon is its distance around or the sum of the lengths of its sides.
A. product B. area C. exponent D. perimeter
Multiply or divide.
A. -1.7 B. -17 C. -0.7 D. -7
Identify the row operation that produces the resulting matrix.
? 
A. (-1)R2 ? R2 B. R1 + (-1)R2 ? R2 C. (-1)R1 + R2 ? R2 D. R1 + (-1)R2 ? R1