BEEN WAITING 5 HOURS FOR AN ANSWER Is (–7, –9) a solution to this system of inequalities?

20x − 18y ≤ –10
x ≥ –7

What is the rotational symmetry of a wheel

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)

Extra points! find the missing dimension! need asap