A path goes around a triangular park, as shown. a. Find the distance around the park to the nearest yard. The distance is about yards. b. A new path and a bridge are constructed from point Q to the midpoint M of PR¯¯¯¯¯¯¯¯ P R ¯ . Find QM Q M to the nearest yard. QM≈ Q M ≈ yd c. A man jogs from P P to Q Q to M M to R R to Q Q and back to P P at an average speed of 150 yards per minute. To the nearest tenth of a minute, about how long does it take him to travel the entire distance?

What are “like terms”? why can we only add like terms?

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

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)