Answer:
This is verry easy! Is 105.56,do u need expabation?
The quadratic formula is above.
You want each equation in standard form: ax^2 + bx + c = 0
I begin each problem by defining variables.
For instance 3. Is in standard form. X^2 -2x - 3 = 0. a = 1, b = -2, c = -3
Now use quadratic formula: x = [- b + or - sqrt(b^2 - 4ac)]\2a
The answer is 3.75 or 3 3/4
10. is f 11. is a I dont know for 12 though