Use the number line below to help you determine which of the following expressions is true. The number line goes from 5.0 to 6.0 with 9 labeled marks in between. Each mark increases by point one. There are five labeled points. A point labeled 5.04 is between 5.0 and 5.1. A point labeled 5.26 is between 5.2 and 5.3. A point labeled 5.4 is at the mark labeled 5.4. A point labeled 5.520 is between 5.5 and 5.6. A point labeled 5.71 is between 5.7 and 5.8.

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)

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Aplane intersects a pris paralel to the base of the prism. the cross section is a polygon wth eight sides. how many sides does the base of the prism have? a. 10 b. 8 c. 7 d. 9