Solve the problem.Assume that a person's threshold weight W, defined as the weight above which the risk of death rises dramatically, is given by W(h) = 
3 , where W is in pounds and h is the person's height in inches. Find the threshold weight for a person who is 6 ft 4 in. tall. Round your answer to the nearest pound.
A. 265 lb
B. 221.5 lb
C. 235.9 lb
D. 140.9 lb
Answer: C
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Find the limit of the sequence if it converges; otherwise indicate divergence.an = 
A. 
B. - 
C. 
D. Diverges
Solve. Use ? ? 3.14 when necessary.Find the volume of a tin can with radius 6.5 in. and height 5 in. Round your answer to the nearest tenth.
A. 204.1 in.3 B. 102.1 in.3 C. 663.3 in.3 D. 2653.3 in.3
Write an equation for the ellipse.foci at (0, 11), (0, -11), through the point 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve the problem.If the height of a rectangular solid is held constant, the volume varies jointly with the length and the width. If the volume is 120 cubic inches when the length is 8 inches and the width is 3 inches, find the volume when the length is 7 inches and the width is 4 inches.
A. 160 in.3 B. 112 in.3 C. 105 in.3 D. 140 in.3