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Earn +20 ptsQ: How do you write the number 81 as a power?
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Use exponents to write the number 81 three different ways?
3 to the power of 4 9 to the power of 2 81 to the power of 1 I'm on this problem in my notebook too ;)
How do you write the number 54 as a power?
you could write it as 233*3
What is 3 to the 4th power in standard form?
81
Is the root of 81 an irrational number?
No. The square root of 81 is 9, which is a rational number.
What is y to the third power multiplied by x to the negative 2 power?
It depends on what number y and x are. If y is the number, say...2 than you would multiply 2 to the third power like this: 2x2x2=8 and the x would be 9: 9x-9=-81 multiply 8 and 81 and that will be your answer. Hope that helps in Math Class! :0)
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