If ΔABC ≅ ΔEDF where the coordinates of A(0, 2), B(2, 4), and C(2, −1), what is the measure of DF?

Q: Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more

t = 2.52 secondsStep-by-step explanation:h=139-15t-16t^2We want to know when the ball hits the groundThat would be when h=00 = 139-15t-16t^2We can use the quadratic formula to find tt = -b ± sqrt(b^2-4ac) 2awhere a = -16 b = -15 and c = 139 t = -(-15) ± sqrt((-15)^2-4(-16)139)

Q: If δabc ≅ δedf where the coordinates of a(0, 2), b(2, 4), and c(2, −1), what is the measure of df? a. 3 b. 3.1 c. 5 d. 5.9

C. 5Step-by-step explanation:Since Triangle ABC is congruent to EDF it mean that the sides are the same so the length of BC is congruent to the length of DF:distance formula:d = √(x2 - x1)^2 + (y2 - y1)^2d = √(2 - 2)^2 + (-1 - 4)^2d = √(0)^2 + (-5)^2d = √0 + 25d = √25d = 5