Find the volume of the sphere. round your answer to the nearest tenth. radius: 11 yd

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.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?