Given right triangle ABCABC with altitude \overline{BD} BD drawn to hypotenuse ACAC. If AC=19AC=19 and DC=4,DC=4, what is the length of \overline{BC} BC in simplest radical form? (Note: the figure is not drawn to scale.)

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp