4 years ago

Need help with number 5 please

1 answer:

7 0

Well let's pretend that decimal wasn't there, and the question was just asking √81. You should know that the answer to √81 is 9. So now, let's put the decimal back in its place so the question is √.81 again. You just have to do the same thing to the answer by adding a decimal in front of it. Therefore:

√81 = 9

√.81 = .9

Your answer is 0.9 :)

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