Factor completely.u2 - 4uv - 21v2

A. (u - 3v)(u + 7v)
B. (u - 3v)(u + v)
C. (u - v)(u + 7v)
D. (u + 3v)(u - 7v)

Answer: D

Mathematics

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Solve and graph. Write the answer in set-builder notation. ? 7 

A. {x |x ? 21}
 
B. {x |x > 21}
 
C. {x |x < 21}
 
D. {x |x ? 21}
 

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Convert as indicated. Express the answer in decimal form when needed.329 feet per second to meters per second (Round to the nearest tenth.)

A. 100.3 ft/sec B. 987 ft/sec C. 365.6 ft/sec D. 109.7 ft/sec

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Simplify the expression involving rational exponents.-4/3

A.
B. Not a real number
C.
D. - 

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Solve the equation by factoring.3x(x - 3) = 8x2 - 10x

A.
B.
C. {0}
D. {0, 5}

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