Solve the problem.For small jobs, a contractor mixes concrete from bags of pre-mix. How many bags with 3% cement should he mix with 5 bags of 6.8% cement to produce a mix containing 4% cement?
A. 16 bags
B. 14 bags
C. 24 bags
D. 19 bags
Answer: B
Mathematics
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Solve.Find the area bounded by 
, x = 
, and y = 0. Give your answer in exact form.
A. ln 4
B. ln 2
C. ln 
D. ln 
Mathematics
Subtract.5 - (-14)
A. -19 B. 19 C. 9 D. -9
Mathematics
Perform the indicated operation(s), whenever possible.Let A = 
and B = 
. Find A + B.
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality. Express your answer in set notation.x2 ? 4
A. {x| x ? -2 or x ? 2} B. {x| x ? 2} C. {x| -2 ? x ? 2} D. {x| -2 < x < 2}
Mathematics