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Thanks Civonamzuk,

It is really best NOT to change these into improper fractions like that.

This way is better

$$\\3\frac{1}{4}-2\frac{7}{8}\\\\
=3+\frac{1}{4}-2-\frac{7}{8}\\\\
=3-2+\frac{1}{4}-\frac{7}{8}\\\\
=1+\frac{1}{4}-\frac{7}{8}\\\\
=\frac{5}{4}-\frac{7}{8}\\\\
=\frac{10}{8}-\frac{7}{8}\\\\
=\frac{3}{8}\\\\$$

I suppose in this instance it didn't make much difference but often it is much easier :)

thanx for trying to help anyway! Melody has had so much experience with all sorts of math problems. so it doesnt take her long! lol

And thanks for the resized cookie

Thanks Alan, why didn't I think of that :)

You can verify by yourself, sqrt(sqrt(6,sqrt(2,-1)^sqrt(9)))=1296

I tried to help u, but al these people had helped u...

I don't understand the question - sorry  :(

You need to show your working Einstein :/

$$\sqrt[-1]{2}$$    I can guess at what it might mean but I have never seen an expression like this before !

HINT: Since a=b, what is a-b ?

Real number solutions:

And here's the resized cookie (copy and save for the future)!

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3 1/4 - 2 7/8 = 26/8 - 23/8 = 3/8

I do not think that you have explained what i wrong with the logic :/

I cannot understand this question at all :/

a=b

axa=axb

a^2=ab

a^2+a^2=a^2+ab

a^4=a^2+ab

2a^2-2ab=a^2-ab

2a^2-2ab=1a^2-1ab

the correct answer is to this part is: 2a^2-2ab=a^2-ab

so the final answer is a=square root of ab

Exactly: The answer is 64 and not 11 because 30 divide by 1/2 isn't 30 divide by 2, but 30*2=60, because a/b=a*(1/b). And 60-(-4) isn't 60-4 but 60+4=64.

Ok well thanks for the cookie I shall put it aside for later. :)

Perhaps you could find a little gold star for next time (I should be on a diet anyway)

The huge pic is a bit distracting in the middle of a thread but it was a really nice gesture :)  

omg, melody!!! thanks! u once again saved my life! LOL

sixty four

30/0.5-(-4)=64

The angle is anti-clockwise from the positive x axis so that is     7pi/4

The distance out the front is from the origin so it is    $$\sqrt{4+4}=\sqrt{8}=2\sqrt2$$

so the answer is  D

ikr. this one's tough. ive been working on it for about an hour. :/

D**N! i have no clue brah

I tried to shrink the image, but it appears I can't.

I was actually hoping that maybe Alan could show me how to get the other answer :/

Can you please Alan ?

Thanks but I already ate far too much tonight.

Don't you know how to make that image smaller?