Answer:
From the answers you provided the best answer is B.52
Step-by-step explanation:
It starts past 32 so there's no way it can ever be that value as the graph is continuously increasing.
Simply solve for x:
-x^2 + 9 = 0 => x = 3 and x = -3;
plug x = 3 and x = -3 into the original equation you get 3 = 3 and -9 = -9, respectively;
So, the two intersecting points are (-3, -9), (3, 3).
And of course, the parabola opens down since its square term is minus.
Hey You!
0.90 × 8 = 7.20
Susan will need 7.2 gallons of paint to paint 8 walls.
I think x = 46 and y = 18. 8y - 102 is vertical to 2y + 6 so you would make them equal each other. You would solve and end up with 18. To find 3x, you would see that 8y - 102 is supplementary to it and they would have to equal 180. If you substitute 18 into 8y - 102 it would be 42. 180 - 42 is 138 so you would divide and do 138/3 which would leave you with 46.