Solve the absolute value equation. Check
for extraneous solutions.
a. |2x + 5 |= 11

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.

Find the solution(s) to x^2-14+49=0

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.