Discussion in 'Community Discussion' started by gregdrummeraz, Jun 10, 2008.

1. ### gregdrummeraz macrumors 6502

Joined:
Jun 7, 2007
Location:
Glendale, az
#1
Each square root is between two integers. Name the two integers.

Which do you think?

5 and 6
6 and 7
4 and 5
7 and 8

I am seriously confused..

"brain fart"!!!

2. ### gregdrummeraz thread starter macrumors 6502

Joined:
Jun 7, 2007
Location:
Glendale, az
#2
I POSTED IT WRONG.. HERES THE PROBLEM.

Each square root is between two integers. Name the two integers.

√27

5 and 6
6 and 7
4 and 5
7 and 8

3. ### richard.mac macrumors 603

Joined:
Feb 2, 2007
Location:
51.50024, -0.12662
#3
yeh i thought the first question was posted wrong, it made no sense.

well sqrt(27) = 5.20 (3sf) so thats between 5 and 6… easy!

4. ### swiftaw macrumors 603

Joined:
Jan 31, 2005
Location:
Omaha, NE, USA
#4
If you don't have a calculator, realize that 25 < 27 < 36, so sqrt(25) < sqrt(27) < sqrt(36)

Therefore

5 < sqrt(27) < 6

5. ### prostuff1 macrumors 65816

Joined:
Jul 29, 2005
Location:
Don't step into the kawoosh...
#5
um, yeah, this is easy

5^2 = 25 and 6^2 = 36

since 27 is between 25 and 36 then the sqrt(27) must be between 5 and 6.

Joined:
Jun 7, 2007
Location:
Glendale, az
7. ### prostuff1 macrumors 65816

Joined:
Jul 29, 2005
Location:
Don't step into the kawoosh...
#7
depend on were the negative in -9 is.

example:

9^2 = 81
(-9)^2 = 81
-(9)^2 = -81

understand?

Edit: for your question though the answer is yes. 9 and -9 are the squares of 81

8. ### richard.mac macrumors 603

Joined:
Feb 2, 2007
Location:
51.50024, -0.12662
#8
^ and the sqrt(-81) = 9i

though that doesnt really apply here

9. ### gregdrummeraz thread starter macrumors 6502

Joined:
Jun 7, 2007
Location:
Glendale, az
#9
What do I press on a calculator to find simplest form of a fraction?

I am def on my macbook... using leopard. so what would it be?