Solve the problem.A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 6% cement should he mix with 5 bags of 17.2% cement to produce a mix containing 10% cement?
A. 14 bags
B. 9 bags
C. 11 bags
D. 19 bags
Answer: B
Mathematics
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Write an equivalent double integral with the order of integration reversed.
A. 
B. 
C. 
D. 
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Decide whether the given number is a solution of the given equation. Is -20 a solution of 20 + x = 0 ?
A. Yes B. No
Mathematics
Use the trapezoidal rule to approximate the value of the integral defined by the given set of points.
A. 5.33 B. 5.49 C. 5.36 D. 5.27
Mathematics
Provide an appropriate response.Multiply and report the product with the appropriate accuracy: 14.83 cm (12.5 cm)
A. 185.375 cm2 B. 186 cm2 C. 185.4 cm2 D. 185 cm2
Mathematics