The reflective property of an ellipse is the principle behind "whispering galleries." These are rooms with elliptically shaped ceilings such that a person standing at one focus can hear even the slightest whisper spoken by another person standing at the other focus. Suppose that a dome has a semielliptical ceiling, 96 ft long and 23 ft high. Choose a coordinate system so that the center of the semiellipse is (0, 0) with vertices (-48, 0) and (48, 0) and with the top of the ceiling at (0, 23). (0, 23) (-48, 0) (0, 0) (48, 0) Approximately how far from the center along the major axis should each person be standing to hear the "whispering" effect? Round to 1 decimal place.

Find the. standard equation R the :vertices at '(1,22,15,2); endpoint. minor axis (2,3),2,). ellipse grve: qthe of att अमयी एिषगरे

For which conic sections do the vertices lie between the foci?

The ellipse below intersects its two axes of symmetry at the points (8, -3), (5, -2), (2, -3), and (5, -4): 3 8. -4- -5- -6 (a) Report the coordinates of the center. -3 ). (b) Report each of the following. The length of the semimajor axis is 3 The length of the major axis is 6 • The length of the semiminor axis is 1 The length of the minor axis is 2