Use the inverse of the coefficient matrix to solve the system of equations.5x + 12y = 7,2x + 5y = 8; A-1 = 
A. (-49, 54)
B. (-122, -108)
C. (-61, 26)
D. (61, -54)
Answer: C
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Find all real numbers that satisfy the equation. Round approximate answers to 2 decimal places.3 = 5 cos(x) + 2
A. 0.98 + 2k? or 5.30 + 2k? where k is any integer B. 1.37 + k? or 4.91 + k? where k is any integer C. 1.37 + 2k? or 7.65 + 2k? where k is any integer D. 1.37 + 2k? or 4.91 + 2k? where k is any integer
Graph the equation by plotting points.y = x3 + 2
A. 
B. 
C. 
D. 
Solve the problem. Round money to the nearest cent, rate to the nearest tenth of a percent, and time to the nearest day.Find the maturity value of a loan at 10.4% for 10 months if the principal is $12,005.
A. $12,941.39 B. $13,149.48 C. $13,045.43 D. $13,140.02
Answer the question.True or False: An equation of the type y = c (c is a constant) produces a line parallel to the 
A. False B. True