You can use the equation d = 4.7 + 2.8t to model a walk in which the distance from a motion sensor d is measured in feet and the time t is measured in seconds.
Use the equation to plug in the values and answer the questions.
c. When will the walker be 15 feet away from the sensor? I’m

Select a graph that have an equation with a < 0

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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)