at shelby`s closet, 7/12 of the clothes are white and another 1/12 are black. what fraction of the clothes are either black or w
2 answers:
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Answer:
a) true
Step-by-step explanation:
The bottom-line numbers from synthetic division <em>alternate signs</em>, indicating that -2 is a lower bound. The given statement is true.
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If the signs were all positive, it would indicate the proposed zero is an <em>upper bound</em>.
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A graph shows all real zeros are greater than -2.
