State if the vectors a and b are perpendicular, parallel, or neither. If a and b are parallel, state whether they point in the same direction or in opposite directions.a = 
, b = 
A. Parallel, opposite directions
B. Parallel, same direction
C. Perpendicular
D. Neither
Answer: A
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Perform the indicated operation. 
A. -29
B. - 
C. -39
D. 29
The function s gives the displacement (in ft) of an object as a function of time (in seconds). Calculate values of the average velocity for the given values of t and find the instantaneous velocity at the indicated value of t by noting the limit of the average velocities.s = 80t - 18t2 ; when t = 0.5; use values of t of 0.45, 0.49, 0.499, 0.4999
A. Average velocities: 22.9, 22.18, 22.018, 22.0018
v = 22 ft/s
B. Average velocities: 44.9, 44.18, 44.018, 44.0018
v = 44 ft/s
C. Average velocities: 62.9, 62.18, 62.018, 62.0018
v = 62 ft/s
D. Average velocities: 4.9, 4.18, 4.018, 4.0018
v = 4 ft/s
Provide an appropriate response. Simplify the expression: (6x2 + 3x) + (2x2 - 5x)
A. 8x2 - 2x B. 6x3 C. 8x2 - 8x D. 8x4 - 2x2
Determine if the graph of the function is concave up or concave down.y = 4(x + 1)2 + 2
A. Concave up B. Concave down