Solve by the method of elimination by substitution.7x + 3y = -362x + 9y = 6
A. x = 6, y = 2
B. x = -12, y = 4
C. x = -6, y = 2
D. Inconsistent
Answer: C
Mathematics
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Graph the inequality.y < 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Using the floor plan below, find a path that starts in room A and passes through each doorway exactly one time.
A. A ?D ? E ? C ? B B. A ?C ? E ? D ? A ? C ? B C. A ?D ? E ? C ? A D. No such path exists.
Mathematics
Subtract.-20 - 41
A. 21 B. -61 C. 61 D. -21
Mathematics
Find the derivative.s = t3 cos t - 14t sin t - 14 cos t
A. 
= t3 sin t - 3t2 cos t + 14t cos t
B. 
= - t3 sin t + 3t2 cos t - 14t cos t - 28 sin t
C. 
= - 3t2 sin t - 14 cos t + 14 sin t
D. 
= - t3 sin t + 3t2 cos t - 14t cos t
Mathematics