What would a circle with an equation of x^2 + y^2 = 36 look like?

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

How can you find the magnitude of a vector, v = < x, y > , where the horizontal change is x and the vertical change is y?