Find all values of k for which the function y=sin(kt) satisfies the differential equation y′′+19y=0. separate your answers by commas.

Choose the triangle with x equal to 17.

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3