The diagram shows a rectangle with its dimensions in centimeters.
with sides (3y+2),2x,(x+7),(x+y+1).
a. Find the values of and .
b. Find the area and perimeter of the shape.

List the sides of δrst in in ascending order (shortest to longest) if: a ∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

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)