Decide which property of addition is illustrated.(1 + 8) + 8 = (8 + 1) + 8
A. Commutative
B. Associative
Answer: A
Mathematics
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Determine if the given function y = f(x) is a solution of the accompanying differential equation.y' + y = e2xy = 3e- x + 
e2x
A. Yes B. No
Mathematics
Solve the problem.The following graph shows a weight and height chart. The weight w is listed in pounds and the height h in inches. The shaded area is a recommended region. 
Weight (pounds)Use the graph to estimate the recommended weight range for a person 65 inches tall.
A. 120 lb to 155 lb B. 120 lb to 165 lb C. 110 lb to 160 lb D. 110 lb to 155 lb
Mathematics
Find the LCM of the expressions.9x2y4z5, xy2z4
A. 9x4y8z20 B. 9xy2z4 C. 9x2y4z5 D. 9x3y6z9
Mathematics
Simplify, if possible. If the answer is undefined, state so.
A. 1 B. 2 C. -2 D. 0
Mathematics