Homework Statement
Find the vertex of the parabola y = (a-b)(a+b)
Homework Equations
x = -b/2a
The Attempt at a Solution
This question was extra credit on my Pre-Calc test today. I got the answer and it took almost a page to do it. But I'm very anxious and I just can't wait until i get my...
Yes it is a homework problem. Don't get the idea that I'm trying to get people to do my homework for me. Haha.
Below are the law of cosines:
[PLAIN]http://www.ies.co.jp/math/java/trig/yogen1/yogen-moji.gif
Find the weight of a pumpkin hanging from two scales, if scale one reads 33 N, scale two reads 49 N, and the angle θ between the strings coming from the two scales is 131 degrees.
http://a1.educog.com/res/msu/plough/physlibrary/graphics/pumpkin.gif
I attempted to do this. I used law of cosines...