UMM. i NEED help ummm help me find three different ways to do 729 AND 15,625 in a POWER!!!!!
2007-09-07 10:23:34 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
729 = 27^2
= 9^3
= 3^6
15625 = 125^2
= 25^3
= 5^6
2007-09-07 10:46:20 · answer #1 · answered by mohanrao d 7 · 0⤊ 0⤋
To figure out the power, find the square root of the number.
sqrt(729)
= 27^2 <--You could simplify this to 9^3 if you want.
sqrt(15625)
= 125^2
2007-09-07 17:30:53 · answer #2 · answered by Brad 2 · 0⤊ 0⤋
729 = 9*9*9 = 9^3
15,625 = 25*25*25 = 25^3
2007-09-07 17:34:23 · answer #3 · answered by harry m 6 · 0⤊ 0⤋
Take the log of each number using different bases. If you get a whole number for the answer, then your answer is the base to that power.
For example, if you want to express 1000000 as a power, take log(10) of 1000000 and you should get 6, so 1000000 = 10^6. If you try log(5) 125, log(5)125 = 3, so 5^3 = 125, right?
2007-09-07 17:38:11 · answer #4 · answered by Mr. Payne 3 · 0⤊ 1⤋
The opposite of a power is a square root, try messing around with those first.
2007-09-07 17:32:45 · answer #5 · answered by kd5pzz 2 · 0⤊ 0⤋
9³ = 729, 81^1.5 = 729, (531,441)^.5 =729
2.5³ = 15.625, 6.25^1.5 = 15.625,
244.14063^.5 = 15.625
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2007-09-07 17:32:06 · answer #6 · answered by Robert L 7 · 0⤊ 0⤋