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ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.0You can see and tell that it is \(\pm 13\)

Jamierox4ev3r
 one year ago
Best ResponseYou've already chosen the best response.0just divide 169 by 13 because 13*13 equals 169.

Jack1
 one year ago
Best ResponseYou've already chosen the best response.0for another way, look up "NewtonRaphson" method... long winded but will work out all square roots for you, eg sqrt 3, sqrt 168

JamesR4494
 one year ago
Best ResponseYou've already chosen the best response.0How would I find out that it's 13x13?

Jamierox4ev3r
 one year ago
Best ResponseYou've already chosen the best response.0square roots are just something i memorize

JamesR4494
 one year ago
Best ResponseYou've already chosen the best response.0Is that the only way? to memorize?

Jamierox4ev3r
 one year ago
Best ResponseYou've already chosen the best response.0or there is also jack's way, but it is very long winded

Jack1
 one year ago
Best ResponseYou've already chosen the best response.0guesstimating you know 10^2 = 100, so must be bigger you know 15^5 = 225, so must be smaller, leaves a range of 4 possibilities

Hunus
 one year ago
Best ResponseYou've already chosen the best response.0Also, you know that it must end with either a three or a seven. And since you know it has to be greater than 10 and less than 15 your only choice is 13

Jack1
 one year ago
Best ResponseYou've already chosen the best response.0or you could get a pile of 169 rocks, and see how many even piles of the same number of rocks as piles you can split them in to...?

Jamierox4ev3r
 one year ago
Best ResponseYou've already chosen the best response.0jack that would take a lot of time lol :)
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