Question

An architect drew a figure on a coordinate grid as shown to represent a scaled model of the front view of a garage.

http://assets.openstudy.com/updates/attachments/506490efe4b0583d5cd3e670-renee99-1348769041002-46482588201182430am43442745.gif

What is the length of the segment PQ of the roof rounded to the nearest hundredth?

6.71 units
7.00 units
8.49 units
9.00 units

Answer 1

Okay, I got 5.19?

Here's what I did:
d=sqrt(6-0)^2+(3-6)^2
d=sqrt(6)^2+(-3)^2
d=sqrt(36+-9)
d=sqrt(27)
d=5.19??

What did I do wrong, can someone please explain this to me? Please?

Answer 2

can anyone help? I really don't know what I did wrong?

Answer 3

did I use the wrong formula?

Answer 4

right formula, but you did it wrong. gimme a sec and i'll show you

Answer 5

okay

Answer 6

-3^2 = 9. you put -9. -3 x -3 = 9. when you multiply/divide two negative numbers, the answer is positive

Answer 7

ohh okay, let me change it


d=sqrt(36+9)
d=sqrt(45)
d=6.71!! :)

Answer 8

yes!

Answer 9

yay! thank you! :)

Answer 10

no problem :)

Answer 11

you did \[d=\sqrt{(6-0)^{2}+(3-6)^{2}}\]
\[d=\sqrt{(6)^{2}+(-3)^{2}}\]
\[d=\sqrt{(36+9)}\]
\[d=\sqrt{(45)}\]
\[d=6.71\]

Answer 12

thanks for working it out!

Answer 13

np!

Answer 14

:D

Answer 15

btw i typed all that out. i know how to work out the latix \[ \_]

Answer 16

Yeah, it confused me, so I just typed it normally lol