Exits along interstate highways were formerly numbered successively from the western or southern edge of a state. however, the department of transportation has recently changed most of them to agree with the numbers on the mile markers along the highway. (a) what level of measurement were data on the consecutive exit numbers? nominal ratio interval ordinal (b) what level of measurement are data on the milepost numbers? nominal ordinal ratio interval (c) the newer system provided information on the distance between exits.
a. true
b. false

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)