The speed of the current in a creek is 3mph. A person can kayak 3 mi upstream in the same time that it takes to kayak 9 mi downstream. What is the speed of the person’s kayak in still water?

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.

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.