Solve 5x^2-7+2=0 by completing the square. what is the constant added on to form the perfect square trinomial? 49/4 49/25 49/100

Which fraction is not equivalent to 8/12 a. 2/3 b. 24/36 c. 4/10 d. 6/10

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?