Help, please! The bases of the isosceles trapezoid ABCD measure 12cm and 20 cm. The height of the isosceles trapezoid ABCD measures 25 cm. Find the length of leg BC. A. None of the above.

B.20.5 cm

C.8 cm

D.4 cm

E.25.3 cm

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0