Add or subtract horizontally.Add 4p2 - 2q2 + 3p2q, 8pq + 8p2 - 5q2 + 4pq2, and -2pq + 3pq2 - q2.
A. 12p2 + 10p2q + 6pq - 8q2
B. 12p2 + 3p2q + 6pq + 7pq2 - 8q2
C. 12p2 + 3p2q + 6pq - 7pq2 - 6q2
D. 12p2 + 3p2q - 6pq + 7pq2 - 8q2
Answer: B
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Solve the problem.The capsize screening value C is an indicator of a sailboat's suitability for extended offshore sailing. C is determined by the function C = 4D-1/3B, where D is the displacement of the boat in pounds and B is its beam (or width) in feet. The International Offshore Rules require that the capsize screening value be less than or equal to 2 for safety. What is the maximum allowable beam (to the nearest inch) for a boat with a displacement of 
A. 13 ft 8 in. B. 71 ft 3 in. C. 27 ft 3 in. D. 6 ft 10 in.
Write the given statement as an equation.The surface area of a sphere S varies directly as the square of its radius r.
A. S = kr2
B. S = 
C. S = 
D. S = k2r
Decide whether the proportion is true or false.
= 
A. True B. False
Determine whether the statement is true or false. ?A sequence with terms has n-1 second differences. ?
A. False B. True