A set of elementary school student heights are normally distributed with a mean of 105 centimeters and a standard deviation of 5 centimeters.
What proportion of student heights are between 114 centimeters and 118 centimeters?

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.

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

Apolynomial has two terms. check all of the factoring methods that should be considered. common factor difference of cubes sum of cubes difference of squares perfect-square trinomial factoring by grouping