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Ok so the equation is 10-8

OK so you have 10 candy bars and you eat 8

So you have 2 left

So 10-8=2

That would be pretty awesome! but I don't know! I wish Pi was cupcake... that would fricken awesome

Meh~

I'm ok.

Idk why dont u tell me.....next time put a complete question??

5/7*35

you can do this on the site calc on the home page. 

Which bit is repeating?

Gotta' slightly disagree with (f)...we have......

 w = re^(-r)   ...... " r " must be a variable or else w' would just be "0"

So we have, using the product rule

w' = e^(-r) + (-1)re^(-r) =   e^(-r)* [ 1 - r]

OK...we have

225/100 = x/15     where x is the dsicount

So...cross-multiplying, we have.....

225*15 = x*100      divide both sides by 100

225*15/100 = x =  $33.75 = the discount

The square root of a negative number is an "imaginary" quantity

Slightly modifying geno's answer, we have

√(-11300) =√(-1)* √100 *·√113 = i * 10 * √113   ...or just.....10i√113

[Remember that i^2 = -1  .....so......i = √(-1) ]

Thanks so much Genos!

4 hahah funy stupid

Glad we could help........positive comments are always appreciated.

Oh, Phil is so right; I forgot a few at the start!

Sorry!

I think you mean you want to express 1 billion in terms of 10 raised to an exponent.

This is given by....... 10⁹

If you have access to a calculator such as TI-84+, use it.

You can also you a spreadsheet, such as Excel.

You can also do it by hand, using a formula such as found at

(1, 2, 3, 4)

The number of possible permutations of these digits is given by P(4,3) = 24

10 numbers are less than 240

123, 124, 132, 134, 142, 143, 213, 214, 231, 234

And 14 are greater than 240

241, 243, 312, 314, 321, 324, 341, 342, 412, 413, 421, 423, 431, 432

You are aking:  What is the diameter of planet X?

But, in the next line, you are saying:  The diameter of planet X is 5235.98.

So, the diameter of planet X is 5235.98.

Start with 312,

        then 314,

        then 321,

        then 324,

        then 341,

        then 342,

        then 412,

       then ...

I'm just taking a stab at this; so, if anyone else has a better answer ...

natural logs are logs to the base e where e ≈ 2.7182818285... {an irrational number).

ln(212) / ln(5) is the quotient of ln(212) divided by ln(5)

This number would be the solution to the equation:  5^x  =  212.

I would suggest using the calculator at this site to get a decimal approximation.

Brackets in an equation are handled as if they are parentheses. If you have parentheses inside of other parenthese, it is easier to read if a set of parentheses is replaced with a set of brackets.

Now, there are situations where brackets can have other meanings; for instance, if you are using matrices, brackets can represent matrices, but if you aren't using special functions, they just work like parentheses.

If you have the product of an odd number of negative numbers, the product will be negative.

If you have the product of an even number of negative numbers, the product will be positive.

Do you have an odd number or an even number of negative numbers?

y² = 1/49

y  = ±√(1/49)  =  ±√1 / √49  =   ±1/7

√11300 = √100·√113 = 10√113 

√113 can't be simplified because 113 is a prime number.

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