Solve the problem.The forearm length in centimeters, A, can be approximated by a linear function of the foot length in centimeters, f. Use the points (25, 24) and (33, 33) to find a linear model for the data in the table below. 

A. A = f - 1
B. A = 1.125f + 4.125
C. A = 0.889f + 1.775
D. A = 1.125f - 4.125


Answer: D

Mathematics

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Solve. Write the answer as a mixed number in simplest form.A pair of boards needs adjustment. One board is 49 inches and the other is 37 inches. Find how much the longer board should be shortened to make both boards the same length.

A. 12 in.
B. 5 in.
C. 86 in.
D. 11 in.

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Write the partial fraction decomposition of the rational expression.

A.  +  + 
B.  + 
C.  + 
D.  + 

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Find the derivative of the function.y = ln (7 + x2)

A.
B.
C.
D.

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Perform the indicated operation and simplify the result. +  - 

A. x - 3
B.
C.
D. x + 7

Mathematics