Atrain leaves city a and travels north at 85 km per hr. another train leaves at the same time and travels south at 95 km per hour. how long will it take before they are 425 km apart?
it will before they are 425 km apart.

Find the missing factor in exponential form 48^2=3^2 • ?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe