Does .9 repeating equal 1?
138330
.9 repeating does in fact equal 1, and here is the easiest way to explain it.\n\nx = .9999999999999999999.....(so on and so forth)\nMultiply both sides by 10.\n10x  9.9999999999....(so on and so forth)\nSubtract the 2 equations from each other\n10x - x = 9x; 9.9999.....-.999999999..... = 9\nSolve for x by dividing 9 on both sides\n9x/9 = x; 9 / 9 = 1\nTherefore, .9 repeating does equal 1\n\n(And if you study Calculus, you will find that the limit of .9999.. as it approaches infinity does equal 1).
191788
basic numbers are numbers 0-9
329588
0.207+0.093+0.031+0.020 = 0.561\n\nor\n\n1-0.439 = 0.561
600709
every time i've asked a teacher this, they've told me that its an even number.  The only reason i can come up with is that it is found between  two odd numbers. (-1 and 1)
546845
The previous responders have given you the answer for a terminating decimal. (That means a decimal that has a certain number of decimal places, and then all the rest of it is zeroes. For example, .9187 is a terminating decimal, which could be extended with zeroes as .918700000000000000000....)\n\nBut you may be asking about repeating decimals. These are more interesting. Here's how you convert them to fractions.\n\nIf there is only a single digit that repeats (such as .3333333333....), you take that digit and put it over 9:\n.3333333333.... = 3/9 = 1/3. (Note that you should put the fraction in lowest terms (1/3, in this case) after you put the digit over 9.)\n\nIf there are 2 digits that repeat, you put them over 99. For example, .636363636363636363.... = 63/99 = 7/11.\n\nAnd if there are lots of digits that repeat, you put them over the same number of 9's. For example, .71237123712371237123.... = 7123/9999.\n\nThere are other tricks, such as a decimal that doesn't repeat until after the first few decimal places (e.g., .7633333...), but the above rules should handle most of the situations you encounter.
525843
Numbers 1 - 9 are spelled out, once you get to10 and above, you can just use the numerals. Here's a web site to prove my point...\n\nhttp://www.grammarbook.com/numbers/numbers.asp
483147
1/rt3 *1/rt2-1/rt3\n[1/rt3](1/rt2-1)\n[1/rt3](1-rt2/rt2)\nrationalising\n[(1-rt2)*rt6]/6
210255
Can we only use the number once?\n\n9+5+26-26=14\n\n9*5-26-5=14
578881
It's rational and it's 2.\n\nI think you answered your own question, 1.9999... is a repeating decimal, so it is a rational. \n\nI think some of the confusion comes from the fact that some repeating decimals, like .33333..., come out of repeated long division. But there isn't any long division that will give you 1.99999...\n\nThe thing to remember is that either you accept that 1.9999... represents a number, or you don't. And if you accept that it represents a number, then 2 is the only value it can take that won't break all of your rules of arithmetic.
423211
I would assume that one of your .01s in column A is something like 0.012.\n\nChange your number  format to General and see what happens.
532647
Simply multiply\n9 * 8 * 7 * 6\nBecause the first number can be 1-9 but not zero and the second number can be 1-9 but one number has already been used and so on and so forth.\nHope it helps.
229064
794.1/7.61=\n104.34954=\n104.35=\nB
529089
9+6         6+69          69+60\n9-6          6-9             69-6\n9+69       6-69           60-9\n9-69        6+60          60-6\n9-60        6-60           \n\n60/6\n\ncan you go so far as to do (60+6)/6\nif so... its a very long list... \nbut 9*6 is the only outright multiplication one\n\ncan you have negative #s as well thatare 2-digit?
640878
Actually the above "proof" is misleading. \n\nx=0.999...99\n\n10x=9.999...90 (as anything x10 adds a zero to the end as the decimal place shifts, even if the number is infinite)\n\n9x=10x-x\n=9.999...90-0.999...99\n=8.999...81\n\nx=9x/9=8.999...81/9=0.999...99\n\nTherefore 0.999...99 does not equal 1....mathematics isn't independent of logic. Beware of those who try to make it so.
77859
1-.42^7=0.99769460666752\n\nboris had the right idea but made an arithmetic error.
298515
If you add up all the letters in his name (A=1, B=2, etc) you get 169. And if you turn the 9 upside down you get another six. and if you add 500 to that you get 666, so I think you might be on to something.
665093
The answer is:\n115740.74074074074074074074074074 etc.\n\nthe 740s after the decimal repeats forever.