Solve the system by the substitution method.xy = 116x - y = -6
A. 
B. 
C. 
D. {(-8, 8), (2, -2)}
Answer: B
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Solve the problem.A lake lies between A and C, and lines AB and DE run north-south. If 
and 
how far is it from A to C? Round to the nearest tenth.
A. 11.4 mi B. 5.0 mi C. 3.5 mi D. 4.8 mi
Solve the problem.The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. If V = 352.0 in.3 when T = 320° and P = 10 lb/in.2, what is the volume when T = 280° and P = 15 lb/in.2?
A. 185.3 in.3 B. 245.3 in.3 C. 175.3 in.3 D. 205.3 in.3
Apply row operations to the augmented matrix to find the solution to the linear system.
A. x = -3, y = 4 B. x = -4, y = 3 C. x = 3, y = -4 D. x = 4, y = -3
Use the graph to determine the x- and y-intercepts.
A. y-intercepts: -8, 8 B. x-intercepts: -5, 5; y-intercepts: -8, 8 C. x-intercepts: -5, 5 D. x-intercepts: -8, 8; y-intercepts: -5, 5