A seismic wave is traveling through the earth at an average rate of speed of 8km/s. How long will it take the wave to travel 480km?

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

X+ y = 5 ; x - y =3 solve using linear combination