Determine whether the given lines are parallel, perpendicular, or neither.y = 6x + 3y = -6x + 2
A. Neither
B. Parallel
C. Perpendicular
Answer: A
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Find the length of the curve.The spiral r = 2?2, 0 ? ? ? 2
A. 
?5
B. 
C. 
((?2 + 1)3/2 - 1)
D. 
Write a linear inequality in two variables to represent the situation.An office manager is buying used filing cabinets. Small file cabinets cost $6 each and large file cabinets cost $11 each, and the manager cannot spend more than $114 on file cabinets. Let x represent the number of small file cabinets bought and let y represent the number of large file cabinets bought.
A. 6x + 11y ? 114 B. 6x + 11y ? 114 C. 6x + 11y + 114 ? 0 D. 11x + 6y ? 114
Solve the problem. If necessary, round to the nearest tenth or as indicated. An airplane is cruising at an altitude of 21,120 ft. What is the plane's altitude in miles?
A. 4 mi B. 3 mi C. 5 mi D. 8 mi
Determine where the function is increasing and where it is decreasing.f(x) = -4x2 - 2x - 3
A. decreasing on 
increasing on 
B. increasing on 
decreasing on 
C. increasing on 
decreasing on 
D. increasing on 
decreasing on 