Solve the problem.Use linear regression to find a line representing weight, in pounds, as a function of height, in inches, of men. Then, predict the height of a man who is 145 pounds to the nearest tenth of an inch. The following data are the (height, weight) pairs for 8 men: (66, 150), (68, 160), (69, 166), (70, 175), (71, 181), (72, 191), 
(74, 206).
A. 68.2 in.
B. 63.2 in.
C. 65.7 in.
D. 64.6 in.
Answer: C
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Sketch the graph of the pair of functions. Use a dashed line for g(x).f(x) = 
, g(x) = 
- 2
A. 
B. 
C. 
D. 
Find the slope.Find the slope of a line perpendicular to the line -9x - 5y = -3.
A. - 
B. 
C. -3
D. undefined
Suppose that a 1000-L water tank takes 20 min to drain and that after t minutes, the amount of water remaining in the tank is V(t) = 
(20 - t2) liters. What is the average amount of water in the tank during the time it drains?Enter a reduced fraction of form 
(no units)
Fill in the blank(s) with the appropriate word(s).
Find any x- or y-intercepts for the graph of the equation 
.
?
A. x-intercepts: (0, 12)y-intercepts: (2, 0), (6, 0) B. x-intercepts: (-2, 0), (-6, 0)y-intercepts: (0, 12) C. x-intercepts: (2, 0), (6, 0)y-intercepts: none D. x-intercepts: (0, 2), (0, 6)y-intercepts: (12, 0) E. x-intercepts: (2, 0), (6, 0)y-intercepts: (0, 12)