Ihave a denominator of 2. i'm equivalent to 2/4. what fraction am i? proper or improper

Asoccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 in

What is the anwers for 9+2x=5x-3-x

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)