How do you put 3 90/100 in decimal form

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

Marking brainliest rewrite the equation x = 65 - 60p by factoring the side that contains the variable p.