The height of a projectile (in feet) launched vertically upward from the top of a 280- foot tall bridge is given by the function f(t) = -16t2 + 48t + 280, where t is the time in
seconds after launch. What is the height of the projectile after 2 seconds?

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is