Suppose the CPI increased last year from 200 to 220. What was the rate of inflation last year?

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)

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

Given abc find the values of x and y. in your final answer, include all of your calculations.