Math Problems

[Mercutio]

You're answers so far are all correct.

With the cake problem though...remember that for the upper (top of each layer) surface area you only need to calculate one thing - the upper area of the biggest tier. Imagine looking at the cake from directly above. You see all of the top layer, a ring of the second, a ring of the third, etc. If you smushed it all it would be a single layer equal to the bottom.

If you understood that it makes it easier.

[Count Comfect]

Yes, but if I'm actually icing it, I need to put the icing on in those volumes at those times

Good point though. Shoulda thoughta that.

I'm afraid I don't understand what this one is asking:

If x^2 + 1/(x^2) and x is greater than 0,
find x^5 + 1/(x^5)

[Mercutio]

Originally Posted by Count Comfect

I'm afraid I don't understand what this one is asking:

Whoops. My mistake.

If x^2 + 1/(x^2) = 7 and x is greater than 0,
find x^5 + 1/(x^5)

[dragon child]

Originally Posted by Sminty_Smeagol

well... if a= -6 and it was -a, would that mean 6 (double negative)? or was that a typo or something?

if double negative, 26, right?

What's 1+2+3+4+5+........... all the way to +100?

your wrong the answer would be 30 -a(x-3), a=-6 x=8,
-(-6)(8-3)
6*5
30 or
6(8-3) distributive property
48-18=30 lvl 1 algebra come on 1 learned that in 6th grade of course im in 8th now sorry newcomer