Subtract.88
A. 86
B. 130
C. 46
D. 42
Answer: C
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Find T, N, and B for the given space curve.r(t) = 
i + 
j + 3tk
A. T = 
(cos 0.571t)i - 
(sin 0.571t)j ; N = (-sin 0.571t)i - (cos 0.571t)j ; B = 
(cos 0.571t)i - 
(sin 0.571t)j - 
k
B. T = 
(sin 0.571t)i - 
(cos 0.571t)j ; N = (-sin 0.571t)i - (cos 0.571t)j ; B = 
(cos 0.571t)i - 
(sin 0.571t)j - 
k
C. T = 
(cos 0.571t)i - 
(sin 0.571t)j + 
k ; N = (-sin 0.571t)i - (cos 0.571t)j ; B = - 
k
D. T = 
(cos 0.571t)i - 
(sin 0.571t)j + 
k ; N = (-sin 0.571t)i - (cos 0.571t)j ; B = 
(cos 0.571t)i - 
(sin 0.571t)j - 
k
Solve the problem.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.
A. 40 mph B. 50 mph C. 80 mph D. 20 mph
Simplify the series of additions and subtractions.16 + (-2) - 6
A. 8 B. -8 C. 20 D. 24
Match the inequality to its graph.y < -1
A. 
B. 
C. 
D. 