Try to create a triangle with angle measures 20°, 50°, and 80°. Which of the following describes the figure?

It is a triangle whose sides appear to be all different lengths.
It is a triangle that appears to have two sides of the same length.
It is not a triangle. Two of the sides do not intersect.
It is not a triangle. A line is formed.

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

What is the arc length when θ =pi over 3 and the radius is 5 cm? (5 points) 5 pi over 3 cm 10 pi over 3 cm 16 pi over 3 cm pi over 3 cm

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 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)