1. ## Pre-Alg questions.

I received a pre-alg worksheet in class a while back, but have forgotten/never learned two of the problem methods. They are both because i forgot what the symbol means...

I don't know how to write these questions, so i scanned them. i don't understand what the 3 means on the right one, and i think i got the left one right... that check-mark symbol just means to find the square root, right?

And this one. What does the / part mean?

2. Originally Posted by Nightfire
I received a pre-alg worksheet in class a while back, but have forgotten/never learned two of the problem methods. They are both because i forgot what the symbol means...

I don't know how to write these questions, so i scanned them. i don't understand what the 3 means on the right one, and i think i got the left one right... that check-mark symbol just means to find the square root, right?

And this one. What does the / part mean?

I'm not clear on what problem a) is.

For problem b) $\displaystyle \sqrt[3]{n}$ indicates the "cube root" of n. You problem is asking you "What number, when cubed, gives 27?" Note that:
$\displaystyle \sqrt[3]{27} = \sqrt[3]{3^3} = 3$

-Dan

3. on problem a), i just added the .25 . if i was right in the check mark thing wanting the square root of the given number, then .25 would be it.

4. Originally Posted by Nightfire
on problem a), i just added the .25 . if i was right in the check mark thing wanting the square root of the given number, then .25 would be it.
The square root of 1 is not 0.25, if that is what you are trying to say.

-Dan

5. i see what i did wrong.
i was thinking of the original mistakes i made when i was first learning square roots, because it's been so long...
i was thinking along the lines of "Square = four sides, four corners. The center of the square is the number i want, and the corners must have all the numbers that add up to it."
it was because of a diagram the teacher made that i misinterpreted. ok, i see now. thanks.