If xy=8 then x and y are said to be in: a) inverse proportion
b) direct proportion
c) none of theses
d) both A and B

1. are the triangles similar and if so why? what is the value of x? show your work.

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.

Y+ 2/y is it a polynomial in one variable or not? and if so, why?