Substitute the given values into the formula and then evaluate to find the unknown quantity. Label units in your answer. If the answer is not exact, round your answer to the nearest hundredth.S = 0.5h - 23.5 ; h = 72

A. 27
B. 14
C. 60
D. 13


Answer: D

Mathematics

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Find the work done by F over the curve in the direction of increasing t.F = - i + j + k; C: r(t) = i + j  + 7tk, 0 ? t ? 

A. W =  + ?2
B. W =  + ?2
C. W =  + ?2
D. W =  + ?2

Mathematics

Find the derivative.y = 9 - 5x3

A. 9 - 15x2 B. -10x2 C. -15x D. -15x2

Mathematics

Solve. Round your answer to three decimal places if necessary.4x = 

A.
B. 3
C. -3
D.

Mathematics

Find the indicated matrix.Let A = . Find 3A.

A.
B.
C.
D.

Mathematics