In a right triangle, a and b are the lengths of the legs and c is the length of the hypotenuse. If a = 60 feet and c = 75 feet, what is b? If necessary, round to the nearest tenth.

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis