Solve the problem.
-Assume that a person's critical weight W, defined as the weight above which the risk of death rises dramatically, is given by , where W is in pounds and h is the person's height in inches.
Find the tcritical weight for a person who is 6 ft 11 in. tall. Round to the nearest tenth.
A) 377.4 lb
B) 221.5 lb
C) 212.4 lb
D) 339.3 lb

Question

Solve the problem.
-Assume that a person's critical weight W, defined as the weight above which the risk of death rises dramatically, is given by  , where W is in pounds and h is the person's height in inches.
Find the tcritical weight for a person who is 6 ft 11 in. tall. Round to the nearest tenth.
A) 377.4 lb 
B) 221.5 lb 
C) 212.4 lb 
D) 339.3 lb

Quizplus · Accepted Answer

First, convert the height to inches:

6 ft 11 in. = (6 x 12) + 11 in. = 83 in.

Next, substitute 83 for h in the given formula:

W = 11ebb6d7_48e1_98ce_b437_b14c4cd5d1e4_TB8593_11 = 44.9((83)/(70))² = 339.3 lb

Rounding to the nearest tenth, the critical weight for a person who is 6 ft 11 in. tall is approximately 339.3 lb. Therefore the answer is D.

Solve the Problem. -Assume That a Person's Critical Weight W, Defined as the Defined