Answer:
x is 120.104121495
Step-by-step explanation:
because you can square out the equation and get x
There are 20 students in the class.

P. S. The inequality sign changed or flipped when there's a negative figure involved.
Hope this helps. - M
Answer:
general, factored, and vertex form.
general: y=ax^2+b^2+c
Factored: y=(x+a)(x+b)
Vertex: y=a(x-h)^2+k
Step-by-step explanation: