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Earn +20 ptsQ: What is x8 plus x9?
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The mean of 10 observations is 21 If each score is divided by 3 find the new mean?
The new mean would be 7. The mean is the average of the data. (x1+x2+x3+x4+x5+x6+x7+x8+x9+x10)/10=21 [(x1/3)+(x2/3)+(x3/3)+(x4/3)+(x5/3)+(x6/3)+(x7/3)+(x8/3)+(x9/3)+(x10/3)]/10=? [(1/3)(x1+x2+x3+x4+x5+x6+x7+x8+x9+x10)]/10=? [(x1+x2+x3+x4+x5+x6+x7+x8+x9+x10)/10]/3= 21/3=7
Is x8 plus x plus 1 a monomial?
No.
What is 7x(3x plus x) when x8?
36
Factor completely x8-87 plus 166?
Assume that the expression is x8 - 87 + 166 or x8 + 79. The expression is not factorizable since 79 is not the perfect 8th number!
What is 3x plus 2y if x8 and 10y?
If x = 8 and y = 10 then it is 44.
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