Find the length of the curve.x = t3, y = 2t2, 0 ? t ? 1
A. 
B. 
C. 
D. 
Answer: D
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Use Newton's Law of Cooling to solve the problem.A dish of lasagna baked at 375°F is taken out of the oven into a kitchen that is 74°F. After 7 minutes, the temperature of the lasagna is 309.6°F. When will its temperature be 258°F? Round your answer to the nearest minute.
A. 14 minutes after it was taken out of the oven B. 24 minutes after it was taken out of the oven C. 12 minutes after it was taken out of the oven D. 21 minutes after it was taken out of the oven
Decide whether the statement is true or false.For every real number p, p2 is positive and p < p2.
A. True B. False
Solve the problem.Find the volume of the solid bounded by the paraboloid 
+ 
= 
and the planes 
and 
(The area of an ellipse with semiaxes a and b is ?ab)
A. 
units3
B. 
? units3
C. 27? units3
D. 
?2 units3
Write the function in terms of its cofunction. Assume that any angle in which an unknown appears is an acute angle.cos 46.7°
A. cos 133.3° B. sin 43.3° C. sec 133.3° D. sin 46.7°