12.6 ...if it was rounded, it was rounded to the nearest tenths.....because ur 6 is in the tenths place
if it was 12.67 rounded, then it would have been rounded to the nearest hundredths place because ur last digit is in the hundredths place
and if it was 12.678 rounded, then it would have been rounded to the nearest thousandths place because ur last number is in the thousandths place
u get it ?
The appropriate choice is probably
none of the above
While the inverse of any irrational number is irrational, their ratio my not be, for example (√8)/(√2) is rational.
There are two such numbers.
One of them is 2 + 9.5 = 11.5.
The other one is 2 - 9.5 = -7.5.
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If we consider "9.5 units from 2" to be 9.5 units in the positive direction, then the appropriate choice is 11.5.
I believe that it is C, mind you I could’ve got it wrong. It’s been awhile since I’ve done that kind of math.