What is the area of the figure? 6-sided concave polygon with side with 30 inches, 10 inches, 12 inches, 30 inches, 18 inches, and 40 inches. 180 square inches 190 square inches 840 square inches 1120 square inches

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 of the following best describes the delian problem?

Find two numbers if their sum is 91 and the ratio is 6: 7?