Evaluate 7[45÷(19-10)]+2

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.

Bring the fraction a/a-4 to a denominator of 16-a^2

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false