At noon, ship A is 40 nautical miles due west of ship B. Ship A is sailing west at 19 knots and ship B is sailing north at 22 knots. How fast (in knots) is the distance between the ships changing at 3 PM?

What is the range of the data below? .8090100

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).