Decide whether or not the ordered pair is a solution of the system.(-4, -5)3x = -17 - y4x = -31 - 3y
A. No
B. Yes
Answer: B
Mathematics
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Evaluate the integral.
A. 
ln2(sinh x) + C
B. cosh x ln(sinh x) + C
C. 
ln2(cosh x) + C
D. coth2x + C
Mathematics
Work the problem. Give the answer in scientific notation, rounded to two decimal places, unless otherwise indicated.Assume that a computer can do one calculation in 1.42 × 10-7 seconds. How long would it take the computer to do a trillion (1012) calculations?
A. 1.42 × 105 sec B. 7.04 × 1019 sec C. 1.42 × 1012 sec D. 7.04 × 1018 sec
Mathematics
Simplify.If P(x) = -4x2 - 6x - 7 and Q(x) = -3x2 + 4, find 3[P(x)] + Q(x).
A. -15x2 - 18x - 17 B. 15x2 - 18x - 17 C. -15x2 - 18x + 17 D. -15x2 + 18x - 17
Mathematics
Find the indicated term for the sequence.an = 
; a9
A. 
B. 
C. 
D. 81
Mathematics