Use the given graph of a rational function r(x) to solve the problem.Find r(-2). 
A. 0
B. -1
C. 3
D. 1
Answer: A
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Integrate the function f over the given region.f(x, y) = 
+ 
over the trapezoidal region bounded by the x-axis, y-axis, line 
and line 
A. 60 B. 30 C. 25 D. 40
Use Cramer's Rule, if possible, to solve the system of linear equations. 
A. (5, 1, 2) B. (5, -1, -2) C. (6, -1, 2) D. (1, 2, 1)
Solve graphically. Round solutions to the nearest tenth.3x2 - 9x - 8 = 0; x between 3 and 4
A. 3.9 B. 3.7 C. 3.8 D. 3.6
Solve the problem. Use an annual percentage rate table if necessary.Enrique has a 60-month fixed installment loan, with a monthly payment of $50.69. The amount he borrowed was $2500. Instead of making his 36th payment, Enrique is paying the remaining balance on the loan. How much interest will Enrique save (use the actuarial method)?
A. $96.86 B. $103.90 C. $95.72 D. $91.73