Answer:
how do u know how many extraneous solutions there is?
Step-by-step explanation:
To find whether your solutions are extraneous or not, you need to plug each of them back in to your given equation and see if they work. It's a very annoying process sometimes, but if employed properly can save you much grief on tests or quizzes.
Answer:
choice 1) ON = 22
Step-by-step explanation:
28/42 = ON/33
42ON = 924
ON = 22
You can put this solution on YOUR website!
(2x+5)(6x-1)=120
2x(6x-1)+5(6x-1)=120
12x^2-2x+30x-5=120
12x^2+28x-5-120=0
12x^2+28x-125=0
Find the roots of the equation by quadratic formula
The exterior angles of a triangle always add up to 360, so 360 - 130 - 134 = 96
X=96