1)The ratio of smiley faces to triangles is _. 2)There are _ squares for every four triangles.

3)There are 2 smiley faces for every _ squares.

4)There is 1 smiley face for every _ triangles.

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?

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