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Earn +20 ptsQ: What is 81 x 2?
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What is the geometric mean of 4 and 81?
mean = (4 + 81)/2 = 85/2 = 42.5
What is 81 times 2 thirds?
2/3 x 81 = 54
Does 2 times any number equal 81?
2 x 40.5 = 81
What is the value of 9 to the power of 2?
81. (9 to the power of 2 = 9 x 9).
How do you get 81-18x plus xsquared from (9-x)squared?
Because: (9-x)(9-x) = 81-18x+x^2
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