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There is no question here!

inverse sin is the same as arc sine

So use asin on the forum calc.  :)

Anyway, you can not find asin(1.29) it does not exist!

sine rations must be between -1 and 1 inclusive. 

What are you talking about?

Parentheses really matter. The answer could be:  

$${\mathtt{7.8}}{\mathtt{\,\times\,}}{{\mathtt{10}}}^{{\mathtt{5}}} = {\mathtt{780\,000}}$$

Or:

$${\left({\mathtt{7.8}}{\mathtt{\,\times\,}}{\mathtt{10}}\right)}^{{\mathtt{5}}} = {\mathtt{2\,887\,174\,368}}$$

$${\mathtt{7.8}}{\mathtt{\,\times\,}}{{\mathtt{10}}}^{{\mathtt{5}}} = {\mathtt{780\,000}}$$

haha .. sorry its by mistake 

I think it is an old fashioned window.  Squash up  1+1 so it is all touching then finish the square around the outside.   That makes a little 'french window'. 

the may not be a negative dragon.

6--8=6+8=14

-2--5=-2+5=3

-8--1=-8+1=-7

There is not a balanced number of brackets so I do not know what the question is.  

$$\\5000=5\times7^{0.5}x\\\\
5000=5\times \sqrt7\;x\\\\
1000= \sqrt7\;x\\\\
x= \frac{1000}{\sqrt7}\\\\
or\\\\
x=\frac{1000\sqrt7}{7}$$

I think that you left out a plus sign Angelica  

$$\frac{1}{100,000,000,000}$$

I put the commas in so I could count the zeros.  there are 11 zeros so there is no perfect square root (because it is an odd number.)

$$\sqrt{\frac{1}{100,000,000,000}}\\\\
=\sqrt{\frac{1}{10,000,000,000\times 10}}\\\\\
=\frac{1}{\sqrt{10,000,000,000\times 10}}\\\\
=\frac{1}{\sqrt{10,000,000,000}\times \sqrt{10}}}\\\\
=\frac{1}{100,000\sqrt{10}}}\\\\
=\frac{1}{100,000\sqrt{10}}}\times\frac{\sqrt{10}}{\sqrt{10}}\\\\
=\frac{\sqrt{10}}{1,000,000}}\\\\$$

You don't get what? Tell us and we would help.

you are welcome Dragon 

Adrienne if you want to do these you can use the 'calculation ' button above .

It is like the forum version of the calculator.

$${{\mathtt{399}}}^{{\mathtt{3}}}{\mathtt{\,\times\,}}{\mathtt{23}} = {\mathtt{1\,460\,987\,577}}$$

That way it is a bit clearer what you have done.     

Ah hA Quinn,  I have seen this question before.  

When you have to use an equation you can look at it if you need to, BUT NEVER look at it as you write it unless you are just committing it to memory.  If you actually need to use it.  LOOK, take it away, write it THEN check you got it right.

It is not really physics but we do not have a chemistry category.

No ,I think there are 2 pints in a quart so 6 pints in 3 quarts.  :)

I just had to "write more" or it wouldn't accept my answer.  

I assume this is:

(5/3)(y+5)=(1/2)-y   multiply both sides by the common denominator of 2 and 3, i.e., 6....so we have

10(y +5) = 3 - 6y   simplify

10y + 50 = 3 - 6y     add 6y to both sides and subtract 50 from both sides

16y = -47                divide both sides by 16

y = -47/16

I'm not sure what you mean by "4 x 4" problems.....can you give us an example of what you're referring to???

36% = 36/100 = 9/25

There's nothing to "solve"... just to evaluate...    note.... 1 + 1/6 = 7/6 ..... so we have

(7/6) * (-5/6)  = -35/36

And that's it !!!

Yes I had fun with this problem quinn.

But it is better if you get the question right in the first place.  I liked the Extra brackets that you put in second time round, then we know we have not misinterpreted.

I have included this problem in the next "End of Day Wrap" that i  write.  I invite you to read my wrap.  I write one most nights.

Here is the address of yesterday's one.  They are kept in with the sticky topics.  :)

It IS fun, quinn.......just don't make them too difficult......otherwise, it makes us look bad........

P.S  ....I even had to "cheat" off Melody a bit to get that problem correct!!!!  (Shhh!!!...don't tell her)