Solve the following equation by completing the square

x^2+4x-4=0

Which function is represented by the graph

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Plz a. s. a. p. the table shows the number of male and female contestants who did not win a prize. what is the probability that a randomly selected contestant won a prize, given that the contestant was female? write the probability as a percent. round to the neares tenth, if needed.