BONUS 2) You have a black square of side length 2s. A circle whose edges touch the edges of the square is cut out of the center of the square. A black diamond is placed into the circle so that the four corners
of the equilateral triangle lie on the edge of the circle. What percentage of the shape remains black?
a) 66.7%
b) 75.0%
c) 71.4%
d) 78.6%

What is the difference between the points (4, 7) and (4, -5)? a. 0 units b. 2 units c. 4 units d. 12 units

Which expression will have the same sum as 3_8 + 1/4?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)