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Mathematics, 04.07.2020 14:01 Daruk
Wilma can mow a lawn in 60 minutes. Rocky can mow the same lawn in 40 minutes. How long does it take for both Wilma and Rocky to mow the lawn if they are working together?
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Mathematics, 21.06.2019 15:00
Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2
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Mathematics, 21.06.2019 19:20
1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?
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Wilma can mow a lawn in 60 minutes. Rocky can mow the same lawn in 40 minutes. How long does it take...
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