Which of the following expressions is not a
ratio?
A. 2
3 B. 2:3
C. 2 to 3 D. 2 + 3

The function models the number of accidents

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)