A line graph . Why is the line a straight horizontal line ?

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

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

Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?