Solve the problem.Find an equation for the least squares 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), (73, 198), (74, 206).
A. 64.6 inches
B. 68.2 inches
C. 63.2 inches
D. 65.7 inches
Answer: D
Mathematics
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Mathematics
Identify the interval where f is increasing or decreasing, as indicated. Express your answer in interval notation.f(x) = -5x2 + 10x - 7; decreasing
A. [1, ?) B. (-?, -1] C. (-?,1] D. [-1, ?)
Mathematics
Use a sum-to-product identity to rewrite the expression.sin (7t + 8) + sin (2t + 4)
A. 2cos 
cos 
B. 2cos 
sin 
C. 2sin 
cos 
D. 2sin 
sin 
Mathematics
Match the rational function with the appropriate graph.f(x) = 
A. 
B. 
C. 
D. 
Mathematics