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True or false. If two lines are perpendicular, their slopes are negative reciprocals.
asked
Jul 2, 2018
Mathematics
high-school
2
answers
1
vote
90.8k
views
Which is greater -20 or -100
asked
Apr 11, 2018
Mathematics
middle-school
1
answer
5
votes
174k
views
Larry is 10 years old and his sister is 7 years old. In how many years time will there total age be 25 years?
asked
Mar 9, 2016
Mathematics
middle-school
2
answers
1
vote
167k
views
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