Write an equivalent expression by factoring.(m + 3)(a - 2) + (m + 3)(a + 1)
A. (m + 3)(a - 3)
B. (m + 3)(a + 3)
C. (m + 3)(a2 - 1)
D. (m + 3)(2a - 1)
Answer: D
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Find the intervals on which the function is continuous.y = 
A. discontinuous only when x = -4 B. discontinuous only when x = -4 or x = 4 C. discontinuous only when x = -16 or x = 16 D. discontinuous only when x = 16
Solve the problem.The growth rate of a certain tree (in feet) is given by y = 
+ e-t2/2 , where t is time in years. Estimate the total growth of the tree through the end of the second year by using Simpson's rule. Use 2 subintervals. Round your answer to the nearest hundredth.
A. 5.11 ft B. 3.68 ft C. 2.34 ft D. 3.41 ft
Solve the problem.The size of a population of mice after t months is P = 100(1 + 0.2t + 0.02t2). Find the growth rate at 
months.
A. 56 mice/month B. 112 mice/month C. 212 mice/month D. 224 mice/month
Simplify the radical.
A. 18 B. 49 C. 7 D. not a real number