2. kim is x years old. jordan is 7 years older than kim. four times jordan’s age is equal to 200.
(a) write an equation that could be used to solve for kim’s age, x.
(b) how old is kim?
(c) how old is jordan

what is x?

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)