Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither. 4x - 6y = -8 8x + 8y = -8
A. Perpendicular
B. Parallel
C. Neither
Answer: C
Mathematics
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Find the average value of the function f over the region R.f(x, y) = 4x + 10yR is the region bounded by the coordinate axes and the lines 
and 
.
A. 13
B. 
C. 26
D. 
Mathematics
Use the substitution method to solve the system.5x - 7y = -212x + 2y = 6
A. (-1, 4) B. (0, 4) C. (0, 3) D. No solution
Mathematics
Use the LCD to simplify and solve.
x - 
x = 3
A. {24} B. {-24} C. {-21} D. {21}
Mathematics
Use the information given about the angle ? to find the exact value of the indicated trigonometric function.tan ? = 3, ? < ? < 
Find tan 
.
A. 
B. 
C. 
D. 
Mathematics