In mrs chapmans math class 2/3 of the students got either an a or a b on the last test of these students 2/5 got a b the model illustrates this situation. what fraction of the class got a b on the last test?

Place the following steps in order to complete the square and solve the quadratic equation,

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)

Which of the functions graphed below has a removable discontinuity?