Ame: Rachel Corretjer irections: For each set of data, find the first and third quartiles,
nd find the interquartile range, which is calculated using 0 - 03.
1. 9, 11, 15, 18, 22, 22, 25, 27, 30
IOR:
Q3:
Q1:

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

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)

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?