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BB Math question (p. 311 #15) BB Math question (p. 311 #15)
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Old 06-16-2008, 09:30 PM   #1
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BB Math question (p. 311 #15)
I know the book has an explanation but it's unclear...

The answer in the book is (A) None, but I think it could be (C), III only...

Can't <T be directly below <S and directly right of <R? This would mean the slope of RT is zero and the slope of ST is undefined... Does undefined work in a sum (count as zero)? The sum would be und.+0+1... does that equal 1?

Thanks to anyone who takes the time to answer this.
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Old 06-17-2008, 08:24 PM   #2
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Anyone have any info?
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Old 06-17-2008, 09:47 PM   #3
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You can't add unef. + 1, so the answer is none of the above.
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Old 06-18-2008, 06:29 PM   #4
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Excellent. Thank you.
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