Sheila has enough paint to cover 16 square feet. She uses some of the paint to cover an x-square-foot canvas. She will then use all of the remaining paint to paint a square with sides that are y feet long. The side length of the square Sheila will paint is a function of the area of the canvas she paints first. Consider this complete graph of the function.

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

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.