69

When I was in the 7th grade, my math teacher was a 108 year old Catholic nun. (talk about dried out). Anyway, I can remember the day in class she taught us how to calculate a square root. Of course with calculators, it's now a totally worthless exercise, but it was interesting.

I remember trying to do simple calculations with an abacus and a slide rule back in grade school. Both of those were sorta fun, too.

And, CJ, shouldn't that be "Ate something?" *g*

O....U812 Crazy?

I gave my 17 yo grand daughter a t-shirt that reads "I haven't used algebra all day". She loves wearing it to school.

"I haven't used algebra all day".

I wonder how her teachers in school felt about that t-shirt - at least mildly pissed?

Let's 68, you blow me and I'll owe you one!

"I haven't used algebra all day"

That's just wrong.

http://youtu.be/pXtFSE7VlL0

I got it figured out.
https://www.youtube.com/watch?v=CACQmiaU…

I use algebra every day. Lack of math skills is what causes so many professional athletes to end up broke.
http://en.wikipedia.org/wiki/Personal_fi…

8.30662, using the estimate, divide and average method, three iterations.

Just thought you all needed to know .... ;-D

69 is not perfect square.

64 is the perfect square of 8. 81 is the perfect square of 9.

But numbers which are not perfect squares always have irrational numbers as their square roots. So most people are familiar with 2, 3, and 5, all having irrational square roots.

SJG

What a great site! Sex AND math lessons! Who'd have thunk it? ;-D

Integers or whole numbers which are not perfect squares have irrational numbers as their square roots. But there can be other non-integer rational numbers which are the perfect squares of other non-integer rational numbers.

I stand corrected.

SJG