Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1200 hours and a mean life span of 18,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 16,800 hours. round your answer to four decimal places.

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Asquare has a perimeter of sixteen centimeters. what is the length of each of its sides? a. 8 cm c. 9 cm b. 4 cm d. 10 cm select the best answer from the choices

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?