Solve the problem.A load L (in N) is distributed along a beam 10 m long such that L = 24x - 0.4x2, where x is the distance from one end of the beam. Find the expression for the instantaneous rate of change of L with respect to x.

A. 24 - 0.8x
B. 24x - 0.8x2
C. -0.8x
D. 24 - 0.4x


Answer: A

Mathematics

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Round the number to the given place value.In a laboratory course in veterinary biology, fleas gathered from Princess, a volunteered pet dog, averaged 0.168858 inch in length. Round this amount to the nearest thousandth.

A. 1 inch B. 0.168 inch C. 0.170 inch D. 0.169 inch

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Provide an appropriate response.The position of a digit in a decimal determines its:

A. size B. location C. value D. place

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Solve the system of equations.x2 + y2 = 21y2 = 2x + 13

A. (2, ), (-3, ), (2, -), (-3, -)
B. (3, ), (-4, ), (3, -), (-4, -)
C. (2, ), (-4, ), (2, -), (-4, -)
D. (2, 3), (-4, 3), (2, -3), (-4, -3)

Mathematics

Add or subtract. +  - 

A.
B.
C.
D.

Mathematics