Harry and Ron start to run from the same spot. Harry runs due North at 8 km/h and Ron runs due East at 12 km/h.

Find the distance between Harry and Ron after 30 minutes.

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.

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1

Which of these phrases uses parallelism to create a sad tone?