What information could you use to solve the word problem below? Check all
that apply.
- STEP 1: UNDERSTAND
Today the entire school, 250 students, went to the
soap box derby. The Math Club went in 2 vans,
and each van held 6 students. How many students
from the Math Club went to the soap box derby?
A. The entire school, 250 students, went to the derby
B. How many Math Club students went to the derby?
W
C. Each van held 6 students.
W
D. The Math Club went in 2 vans

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)