Solve pls

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.

How many roots does the graphed polynomial function have? 1-02