Posted by Jmiah on October 03, 2002 at 10:16:06:
This is the deal. Me and the answer key don't agree, and so my mom wants me to figure it out another way, to make sure which is right. Now, remember the double negative.
(11-4)^2 / 7-(3-9)=14(r-2r)
[that's not a 2/7 exponent, its squared, divided by 7]
(7^2)/7-(3-9)=-14r
49/7-(-6)=-14r
7-(-6)=-14r
13=-14r
-13/14=r
They got -1/14, becuase they forgot the double negative. I'm just making sure I remember double negatives well enough.