Find the equation of the parabola with vertex at (0,0) from the description of the focus and directrix and plot the parabola, the focus, and the directrix.
1. Focus (4,0), directrix x = -4
2. Focus (0,-6), directrix y = 6
3. Focus (-2,0), directrix x = 2
4. Focus (0,3), directrix y = -3

Hel pleaseee

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?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Which of the following is an example of conditional probability