1)

Solve for x. If necessary, round to the nearest ten-thousandth. (If there is no solution, enter NO SOLUTION.) log7(3x) = log7 2 + log7(2x + 1) X =Use the Richter scale equation M = log -, where M is the magnitude of an earthquake, I is the intensity of the shock waves, and I is the measure of the intensity of a zero-level earthquake. Read the article below about the April 13, 2010, earthquake in Qinghai province, China. Find the intensity of this earthquake, in terms of In, for each of the magnitudes reported in the article. Round to the nearest thousand. magnitude 7.1 Io magnitude 6.9 Io In the NEWS! Earthquake Strikes Remote Area of China Rescue workers continue to look for survivors of a severe earthquake that shook a remote area of western China. The China Earthquake Commission reported the quake at magnitude 7.1 on the Richter scale, while the U.S. Geological Survey recorded the quake at magnitude 6.9. Source: www.msnbc.msn.com