Find the area of the shaded regions. give your answer as a completely simplified exact value in terms of π (no approximations).

3. solve the given inequality and graph the solution on a number line.

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?

Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?