Match each pair of points a and b to point c such that abc = 90°.
a(3, 3) and b(12, 6)
c(6, 52)
a(-10,5) and b(12, 16)
c(16, -6)
a(-8, 3) and b(12,8)
c(18,4)
a(12, -14) and b(-16, 21)
c(-11, 25)
a(-12, -19) and b(20,45)
a(30, 20) and b(-20, -15)

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

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