gretzu

Pi is the ratio of a circle's circumference to its diameter.

You can.

For example. take (-5) - (-3)

subtracting a negative number, like above, is the same as adding.. so the problem becomes

-5+3 which is -2.

It does, thanks! :3

Do you have a specific math problem you need help with??

If not, the best answer I can give is to practice often. Math is a learned skill, and the best way to really cement it in is to practice practice practice.

Good luck to you!

Decrease = Original Number - New Number

Decrease = 95 - 75.8 = 19.2

% Decrease = Decrease ÷ Original Number × 100
% Decrease = (19.2/95) * 100 = 20.21%

so about a 20.21% reduction.

Huzzah! haha 

Good, haha, i'm not as concerned about it now :P

Yes, got 1/4m^2. You??

The least common denominator of 17 and 21 (the denominators above) is 357.

17 goes into 357 21 times, so you multiply 1 by 21 and get that you had 21/357.

21 goes into 357 17 times, so you multiply 7 by 17 abd get that your friend had 119/357.

Your friend had more.

Pretty sure its b, but don't hold me to that...

Fantastic, those are the same answers I just came up with.. So that's comforting haha :) thank you!

1.010101010101 x 10^(-6)

To get this, count from your decimal point to the right until you get to the spot right after the first number that is not a 0 (in this case, its a 1).

You will see that you have to count to 6 to get to that spot. Since you moved to the right 6, its negative. 

So you put your decimal after that number, and write the rest of the number after the decimal, and than multiply that 10^(-6) AKA 10 to the number you got previously.

So your answer in scientific notation would be 1.010101010101 x 10^(-6).

57.95 - 23.87 + 3 * 41.97 - (-10.37) = 170.36