In the standard form of quadratic

the discriminant is

In your quadratic, a = 1, b = -9 and c = -10
Now you need to plug these values into the expression for the discriminant.
You need to get a common denominator. 3/4= 9/12 because 3x4=12 and 3x3=9. you must do the same thing to both sides. 1/3=4/12 because 3x4=12 and 1x4=4.
2/6=4/12 because 6x2=12 and 2x2=4. 9/12+4/12+4/12=17/12, or 1 5/12. You keep the denominator and add the numerators.
I cant see the picture please take a better one and i will try to help you
Answer:
it would take 1 4/10 gallons of milk to make 1 gallon of ice cream.
Step-by-step explanation:
4.5/1=6.3/x
4.5x=6.3
x=1.4
hope that helps have a good day