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1+1=9808978478452746571624756716471239657123649712985894758475981/9808978478452746571624756716471239657123649712985894758475981*2

arc tan is  atan

I assume you mean "pi". Using the site calculator, we get:

$${\sqrt{{\mathtt{\pi}}}} = {\mathtt{1.772\: \!453\: \!850\: \!905\: \!515\: \!9}}$$

Only if it is in fraction form...p^20 / p^-8 = p^12...you can subtract exponents to get 12.

But, p^20 + p^-8 does not equal p^12...Suppose p = 2...try it out with the calculator.

As a general rule, make sure the exponents are the same: x^3 + x^3 = 2x^3, but you cannot apply this to x^3 + x^5.

i believe you can?

is 8/3 suppose to be a fraction??

I believe you meant 88.1 grams and not moles. To solve this, you would simply need to divide the grams by the molar mass of Magnesium which can be found on any periodic table. Note that molar mass is in grams/mol so grams will cancel out leaving you with mol. For instance, Oxygen has a molar mass of 16 grams/mol, but O₂ has a molar mass of 32 grams/mol since you have a molecule containing 2 O's.

i would understand this more if this had some kind of letters that reprsent numbers but in this case i dont know what to say.

i think the error was suppose to be like a space? if not then its just an error.

The elipses prevent me from fully understanding the problem. Did you add the elipses yourself, or were those already in the problem?

sorry about that!

opps i meant 12....

im so dumb!

1+6=7

13-7=6

2[6]

(2)(6)=12

6+1=7 13-7=6 2*6=12 answer 12

If you want the definition of absolute value, it is defined how far a number is away from zero.

Geno's answer should help you to understand specific examples.

use pemdas which stands for p().Exponates.Multiplication.Division.Addition.Subtraction

 1+6=7...

13-7=6...

6(12)=72...

72 should be your answer.

When we say "half of 5/9", we mean "$$\left({\frac{{\mathtt{1}}}{{\mathtt{2}}}}\right){\mathtt{\,\times\,}}\left({\frac{{\mathtt{5}}}{{\mathtt{9}}}}\right)$$", because "of" is multiplication in math.

Multiplying fractions is simple: you just multiply the numerators and the denominators together and the products are the new and numerators and denominators.

Then you simplify.

i know right... lol at least you cant find out who i am....or can you??? but anyways lol....

Google can tell you a lot.

Absolute value dosn't really effect positive integers seeing as they become the same number. Negative integers, though, are changed to their positive. For example, /-24/=24, /35/=35 /14-15+12-5.5-6/=0.5

If the number is zero, its absolute value is zero.                  |0| = 0

If the number is positive, leave it as it is.                           |3| = 3

If the number is negative, turn it into a positive number.    |-5| = 5

yup and you searched the school huh?

So, you're a Huskie?

well it depends on what the number is... but lets say you have 3450, so you woould do..

 3000⋅400⋅50⋅0... that would be your answer if your like in 5th grade but if your in algerbra one its harder than that.