Fiona is drawing polygons on a computer. she wants to map a regular 9-sided polygon back onto itself using a reflection. which set of lines can fiona choose from for her line of reflection?

any line passing through the center of the polygon

any perpendicular bisector of one of the sides

any line joining the midpoints of any two sides

any line parallel to a side of the polygon

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

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.

Change negative exponents to positive. then solve. round to four decimal places