Find the distance between the points (0,-1)and (3,-3)

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Need same math paper but the back now i hope your able to read it cleary i need with hw

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.