What property of whole-number multiplication justifies the equality?(2 ? 6) ? 7 = 2 ? (6 ? 7)

A. Multiplicative-identity property
B. Commutative property
C. Distributive property
D. Associative property

Answer: D

Mathematics

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Solve the problem.Under certain conditions, the power P, in watts per hour, generated by a windmill with winds blowing v miles per hour is given by P(v) = 0.015v3. Find the power generated by 14-mph winds.

A. 41.16 watts per hr B. 2.94 watts per hr C. 2744 watts per hr D. 0.00004725 watts per hr

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Mathematics

Find the function with the given derivative whose graph passes through the point P.f'(x) = x - 9, P(3, -9)

A. f(x) = x2 - 9x + 9
B. f(x) =  - 9x + 
C. f(x) = x2 - 9x
D. f(x) =  - 9x + 

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Mathematics

Provide an appropriate response.If f(x) = 2x2 - 3x + 4, then f(x + 1) =

A. 2x2  + 4x + 7. B. 2x2  + x + 3. C. 2x2  - 3x + 5. D. 2x2 - 3x. E. 2x2 + x + 6.

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Mathematics

Construct the requested statistical display.The weights of 22 members of the varsity football team are listed below. Draw an ordered  plot for the data. 144 152 142 151 160 152 131 164 141 153 144 175 156 147 133 172 159 135 159 148 140 171 

A.

B.

C.

D.

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Mathematics