Find the unit tangent vector of the given curve.r(t) = (1 + 11t4)i + (9 + 2t4)j + (10 + 10t4)k
A. T = 
i + 
j + 
k
B. T = 11i + 2j + 10k
C. T = 
i + 
j + 
k
D. T = 
i + 
j + 
k
Answer: C
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Find the extreme values of the function subject to the given constraint.
A. Maximum: 48 at 
minimum: 0 at 
B. Maximum: none; minimum: 48 at 
C. Maximum: 48 at 
minimum: -48 at 
D. Maximum: none; minimum: 0 at 
Solve the problem.An SUV weighing 5100 pounds is parked on a street which has an incline of 
Find the force required to keep the SUV from rolling down the hill and the force of the SUV perpendicular to the hill. Round the forces to the nearest hundredth.
A. 745.55 lb and 2438.58 lb B. 1910.49 lb and 4728.64 lb C. 1491.10 lb and 4877.15 lb D. 1060.35 lb and 4988.55 lb
Write the number using digits.one hundred million, six thousand
A. 106,000,000 B. 1006 C. 1,600,000 D. 100,006,000
Use the fundamental identities to find the value of the trigonometric function.Given that sin ? = 
, find 
A. 
B. - 
C. 
D. - 