A quadratic equation is usually in the form:

where a, b and c are the coefficients of the expression and a ≠ 0.
If a = 0, the equation becomes a linear expression and is no longer quadratic.
Hence, in the above options; y = 5x -2 is the only one that is not a quadratic equation.
Answer:
45°
Step-by-step explanation:
This is a special 6 - 6 - 6√2 right triangle with angle measures 45° - 45° - 90°
1. 32 cents
2.im not sure
Answer = 135,000-8100=126,900-800=126,100(Net sale)-87000=86,200(equity). Answer=86,200$