What would happen to the stream of water if the x-values of the vertex were too large? Why is vertex important in real life? What are other things that create parabolic shapes?

Listed in the table is the percentage of students who chose each kind of juice at lunchtime. use the table to determine the measure of the central angle you would draw to represent orange juice in a circle graph

How do i do this? i don’t understand

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm