A box contain 3 blue balls, 7 red balls and 8 white balls. If three balls are drawn at random from the box, what is the probability that: (a) two are red and one is blue? (b) at least two are white? (c) one of each colour is drawn?

What is sin 7x/4 ? i need on this urgent trig

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes