Given cos theta = - 2/5 and sin theta < 0, find the six trigonometric values. I need help with this

Which choice represents the sample space ,s for this event

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.

Me find the value of x each figure.