Find the length of the curve.x = t3, y = 2t2, 0 ? t ? 1
A. 
B. 
C. 
D. 
Answer: C
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Enrollment at a certain university t years after calendar year 2000 is given by
.
According to the model, for which calendar year is enrollment growing at the fastest rate? Round your answer to the nearest whole number.
?
A. 2006 B. 2009 C. 2010 D. 2004
FInd the tangential and normal components of the acceleration.r(t) = (cosh t)i + (sinh t)j + tk
A. a = (
sinh t)T + N
B. a = (-sinh t)T + N
C. a = (sinh t)T + N
D. a = (- 
sinh t)T + N
Find the length of the arc intercepted by a central angle ? in a circle of radius r. Round your answer to three decimal places when necessary.? = 40°, r = 12 in.
A. 9.216 in. B. 8.378 in. C. 7.54 in. D. 6.702 in.
Find all solutions to the equation. Express the solution in degrees.cot x + 
= 0
A. 150° + 180°n or 330° + 360°n B. 150° + 180°n C. 150° + 360°n D. 330° + 360°n