Determine if the given points form the vertices of a right triangle.
(-4, 6), (0, -5) and (0, 1)

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x