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Pie is a dessert.

Pi is the name of the mathematical fraction created when the circumference of any circle is divided by its diameter. Because its an irrational number, you can't write all the digits -- it never ends and it never repeats.

Significant digits do not depend upon the location of the decimal point; the significant digits are 1535.

When you are rounding to 3 significant digits, look at the fourth digit (in this case, the last 5). If this digit is 5 or more, round up the third digit; if this digit is smaller than 5, leave the third digit alone. In both cases, drop the fourth digit, and any that are after it.

So, round 0.01535 to 0.0154.

Since an equilateral triangle has three equal sides, divide the perimeter by 3 to get the length of each side:

(15x + 21) ÷ 3  =  15x/3 + 21/3  =  5x + 7.

This thread is great!

I'm positive it's 

19

Search on google: answer to life, the universe, and everything

MmmmmmmmmmmmmmmmMMMMm mmmmm

Enjoy it while you still can. You can figure out many cool things during your life.

I'm not exactly sure what you are looking or as a solution.

a particular method or system of calculation or reasoning.

Source: Google

10+2-5+7-22x3+2=-22

Because. No normal person would give you problems that have these mysterious things called "Numbers" (Really demon imps) that you have to answer in the way they want.

$${\frac{{\mathtt{z}}}{{\mathtt{1.2}}}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}$$

I thought both would be 9 but I guess I am wrong. I am extremely confused now.

Oh.., yeah. I'm not sure. Somebody else should answer this. Sorry about that

First, you distribut the x on the right side.

So, it would be 8x-5=3x+21. You want to get rid of one x on either side.

Take away the smaller one so you don't end up with negatives (which is harder to solve) So, 5x-5=21.

Add 5 to both sides. 5x=26.

Divide by 5. You get x=5 1/5. 

but is it not like this?

(-3)^2=9  

-3^2= -9

or is that wrong?

press 2nd and then asin

I don't think its possible since :

(12/2)=6 and

43-28+6=21

Is pavel a person? If so, does Katie have the 3 or 8 in the ratio? I'll help after I get these facts that must be known to answer. Or am I just missing something? 

Any integer is denoted by n. It will be even if we multiply by 2... That is 2n is an even integer. It will be odd if we add 1 to it... That is 2n+1 is an odd integer. Product of 2 odd integers is (2n+1)(2m+1)=4mn+2n+2m+1=2(2mn+m+n)+1=2p+1 where p is an integer. Hence by the above logic the product is an odd integer. 

Source: algebra.com