Consider the function f(x) = -√x . Which list contains three points that lie on the graph of the function? O (1, - 1), (4, - 2), (9, - 3); (1, 1), (4, 2), (9, 3); (- 1, - 1), (- 4, - 2), (- 9, - 3); (- 1, 1), (- 4, 2), (- 9, 3)

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

Me because some of question i don’t understand

During your cycling trip, you and your friends often stayed in hostels. the prices of these are listed below. hostel standard room (price per night) with breakfast (price per night) super sleep hostels £22.45 £28.65 normandy nights £18.55 £25 zzzola hostels £24.50 £30.99 belgian beds £11.20 £18.55 night-time rest days ? £33 what is the range in cost for a single night, including both standard room prices and with breakfast prices?