What are the solutions to the quadratic equation 50-x^2=0

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)