Question

please answer it fast ​

Answer 1

Answer:

for question 1

ax^2-c=0

discrimimant=b^2-4ac

=o^2-4×a×(-c)

0+4ac

therfore ans is

4ac

Step-by-step explanation:

ans is 4ac option b

Answer 2

Answer:

Acceleration is the name we give to any process where the velocity changes. Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your direction—or change both.

Acceleration is the name we give to any process where the velocity changes. Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your direction—or change both.If you’re not changing your speed and you’re not changing your direction, then you simply cannot be accelerating, no matter how fast you’re going.