In how many distinct ways can the 11 letters in engineering be arranged

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?