Ms. ford's kitchen is in the shape of a rectangle with a width of 12.25 feet. she is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of border to be sure she has enough. she buys 62.5 feet feet of the border. whats the length of ms. fords kitchen? show your work.

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)