72 if your needing to times them
A=6
B= -1/2
C= 11
I had this one on my test and I got it right have a good day
Note that the 2nd equation can be re-written as y=8x-10.
According to the second equation, y=x^2+12x+30.
Equate these two equations to eliminate y:
8x-10 = x^2+12x+30
Group all terms together on the right side. To do this, add -8x+10 to both sides. Then 0 = x^2 +4x +40. You must now solve this quadratic equation for x, if possible. I found that this equation has NO REAL SOLUTIONS, so we must conclude that the given system of equations has NO REAL SOLUTIONS.
If you have a graphing calculator, please graph 8x-10 and x^2+12x+30 on the same screen. You will see two separate graphs that do NOT intersect. This is another way in which to see / conclude that there is NO REAL SOLUTION to this system of equations.
The first two are correct because you have to understand and the questions are right good job w8th it
10 20 15 18
---- ----- ------ ------ (ratio 1:4)
40 80 60 72
15 3 9 10
------ -------- ------- ------- (ratio 1:2)
30 6 18 20
