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Calculate -3²
1 answer
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16000000=10r-r^2. Calculate the maximum value of r.
0 answers
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John has $6000 to invest. He invests part of it at 5% and the rest at 8%. How much should be invested at each rate to yield 6%
1 answer
452 views
Organizer of school graduation does have three sections of chairs. 1120 chairs are arranged for graduates, 1400 for invited
1 answer
658 views
