A middle school student (Swimmer 1) who is on the swim team can swim 18 laps in 15 minutes. At what rate does the middle schooler (Swimmer 1) swim 18 laps in 15 minutes? *
10 points
0.83 laps/minute
270 laps/minute
None of the Above
1.2 laps/minute

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Which of the following is the correct ratio for converting kilograms to grams

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