Solve.A man rode a bicycle for 12 miles and then hiked an additional 8 miles. The total time for the trip was 5 hours. If his speed when he was biking was 10 mph faster than his speed when he was hiking, then at what speed was he biking?
A. 11.5 mph
B. 12 mph
C. 13 mph
D. 14.5 mph
Answer: B
Mathematics
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A. a(2a - 3)2 B. a(2a + 3)(2a - 3) C. (2a2 + 3)(2a - 3) D. a(4a + 1)(a - 9)
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Translate to a proportion. Do not solve.What is 46% of 70?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
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Without using a calculator, determine the value of the trigonometric function or state that the value is undefined.sin (18?)
A. 1 B. -1 C. 0 D. undefined
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Rationalize the denominator.
A. 5
B. 10
C. 
D. 
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