Solve the problem.The distance D that a spring is stretched by a hanging object varies directly as the weight W of the object. If a 28-kg object stretches a spring 89 cm, how far will a 10-kg weight stretch the spring?

A. 31.79 cm
B. 3.1461 cm
C. 127 cm
D. 3.17857143 cm


Answer: A

Mathematics

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A.  
B.  
C.  
D.  

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Solve the inequality. Express your answer using interval notation.|3x + 3| + 9 > 4

A. (- )
B. (-?, - ) or (, ?)
C. (-?, ?)
D. no solution

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Perform the indicated operations and simplify the result. Leave the numerator and denominator in your answer in factored form.

A. , x ? -a, x ? a
B. , x ? -a, x ? a
C. , x ? -a, x ? a
D. , x ? -a, x ? a

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A. (x + 3)(x - 8) B. -(x - 3)(x + 8) C. -(x - 3)(x - 8) D. Prime

Mathematics