Equal sides and equal angles
The answer is nine .nine is not a perfect square.
I don’t understand the question, it says “if my cost is the same, what should my new price be”, if your cost is the same… there shouldn’t be a new price.I don’t know if this will help but when im trying to find the answer, i use the butterfly method (part over total times percentage over 100).
A.
Use technology to plot the graph.
Here it is using wolframalpha.com.
http://www.wolframalpha.com/input/?i=y+%3D+-5;+y+%3D+3x+-+2+for+-2%3C%3Dx%3C%3D2
B.
The solution is where the graphs of the lines intersect. It is at point (-1, -5).
C.
y = -5
y = 3x - 2
-5 = 3x - 2
3x = -3
x = -1
The solution is (-1, -5) which is the same as with the graph.
