Given a = {a, b, c} and b = {c, a}, which of the following is true? a ⊂ b b ⊂ a

Which set of reflections would carry trapezoid abcd onto itself? a) x-axis, y=x, y-axis, x-axis b) x-axis, y-axis, x-axis c) y=x, x-axis, x-axis d) y-axis, x-axis, y-axis, x-axis

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20