Solve the problem.A contestant in a 30-mile race finished in 4 hours. What was her average rate during the race? Use the formula d = rt. (Round to the nearest tenth, if necessary.)

A. 7.5 mph
B. 26 mph
C. 120 mph
D. 0.1 mph

Answer: A

Mathematics

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Express the integrand as a sum of partial fractions and evaluate the integral.

A.  - 6x + 9 ln -  + C
B.  - 6x - 27 ln +  + C
C.  - 6x + 27 ln +  + C
D. 27 ln +  -  + C

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Mathematics

Simplify.

A.
B.
C.
D. p2 - 6p + 9

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Mathematics

Solve the system. Express the solution in the form (x, y, z, w).4x + y - 4z + w = 1-x + 4y + z - 4w = -144x - y + 4z + 4w = 29  x + y - 4z - w = -10

A. {(5, -5, 3, -2)} B. {(-5, -3, 6, 2)} C. {(5, -10, 0, 2)} D. {(-5, 4, 4, 1)}

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Mathematics

Provide an appropriate response.Simplify and express your answer in terms of positive exponents:

What will be an ideal response?

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Mathematics