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 7 in. tall. Round your answer to the nearest pound.
A. 265 lb
B. 161.6 lb
C. 221.5 lb
D. 296.3 lb
Answer: A
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Find the triple scalar product (u x v) ? w of the given vectors.u = -5i - 3j + 4k; v = 5i - 3j + 7k; w = 2i - 5j - 6k
A. -209 B. -473 C. 38 D. -341
Find y: e2y = 101
a. 1.01 b. 1.31 c. 2.00 d. 2.31 e. 3.03
Solve the inequality. Give the solution set in both interval and graph forms.-11 < -3x + 4 ? 1
A. (1, 5]
B. [-5, -1)
C. [1, 5)
D. (-5, -1]
Solve the problem.Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below. Find the equation of the least-squares regression line that models the data.
A. y ? 0.930 - 19.4x B. y ? 19.4 + 0.930x C. y ? -0.930 + 19.4x D. y ? -19.4 - 0.930x