Solve the nonlinear system of equations.y = 
2x - y = -6
A. 
B. 
C. 
D. 
Answer: A
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Evaluate the given double integral by changing it to an iterated integral.
S is the region bounded by the x-axis, the line 
and the curve 
A. 10 B. 8 C. 9 D. 1
Solve the problem.When making a telephone call using a calling card, a call lasting 6 minutes cost $2.00. A call lasting 13 minutes cost $3.75. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that models the cost of a making a call lasting x minutes.
A. y = -0.25x + 3.5 B. y = 4x - 22 C. y = 0.25x - 9.25 D. y = 0.25x + 0.5
Solve the system by the addition method.x + y = -1x - y = 14
A. {(6.5, -7.5)} B. {(1, 6.5)} C. {(1, -7.5)} D. {(6.5, 7.5)}
Graph f by hand by first plotting points to determine the shape of the graph.f(x) = 4x
A. 
B. 
C. 
D. 