Solve the system by elimination.5 x - y = 114x + y = 16
A. (3, 4)
B. (3, 5)
C. (4, 3)
D. No solution
Answer: A
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Solve the problem.Find the mass of the lamina covering the region inside the curve 
if 
.
A. 
?
B. 875?
C. 
?
D. 375?
Determine whether the vectors v and w are orthogonal.v = < 32, -1 >, w = < 2, 32 >
A. Orthogonal B. Not orthogonal
Solve the problem.The annual population density of a species of insect after n years is modeled by a sequence. Suppose that the initial density of insects is 620 with r = 1.9. Write a recursive sequence that describes this data, where an denotes the insect density during year n.Find the terms a1 , a2 , a3 , ...., a5 . Round to two decimal places, if necessary.
A. a1 = 1178.00, a2 = 2238.20, a3 = 4252.58, a4 = 8079.90, a5 = 15,351.81 B. a1 = 620, a2 = 62.00, a3 = 6.20, a4 = 0.62, a5 = 0.06 C. a1 = 620, a2 = 1178.00, a3 = 2238.20, a4 = 4252.58, a5 = 8079.90 D. a1 = 620, a2 = 620, a3 = 620, a4 = 620, a5 = 620
Simplify.
A. 28 B. 50 C. 27 D. 25