Write an equation of the line that passes through the given point and is (a) parallel and (b) perpendicular to the given line. (2, 2), (1, 6) are the points of the first line, and (4, 3) is the other point.

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

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.

27 is what percent of 108? 27 is % of 108