Seismologists use the Richter scale to express the magnitude M of an earthquake using the formula M= 2/3log(E/10^11.8) where E is the energy released in ergs. In 1906 an earthquake in San Francisco measured 8.0 on the Richter scale.

Using the given statements, state whether the conditional statement is true or false. p: 7 + 1 = 0 q: 2 + 2 = 5 is p q true or false?

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π