The given expression is
![3x^2 -8x +5 = 5x^2](https://tex.z-dn.net/?f=3x%5E2%20-8x%20%2B5%20%3D%205x%5E2)
We have to find the discriminant first . And for that, first we need to move whole terms of the left side to right side, that is
![5x^2 -3x^2 +8x -5=0](https://tex.z-dn.net/?f=5x%5E2%20-3x%5E2%20%2B8x%20-5%3D0)
![2x^2+ 8x -5 =0](https://tex.z-dn.net/?f=2x%5E2%2B%208x%20-5%20%3D0)
The formula of discriminant is
![D =b^2 -4ac](https://tex.z-dn.net/?f=D%20%3Db%5E2%20-4ac)
Substituting the values of a,b and c, we will get
![D = 8^2 -4(2)(-5)=64+40 = 104](https://tex.z-dn.net/?f=D%20%3D%208%5E2%20-4%282%29%28-5%29%3D64%2B40%20%3D%20104)
And since the discriminant is greater than 0, or it is positive so we have two real roots.
Therefore the correct option is B .
3000ft will equal 914.4 in meters
A = 1/2 (b x h)
A = 1/2(12.5 x 2.4)
A = 1/2(30)
A = 15
6/x-3=3/x
3x-9=6x
3x=-9
x=-3
☺☺☺☺