The isotope lead-208 (208Pb):
The isotope strontium-87 (878r)
g/mol
g/mol

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.

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?

What is the equation, in point-slope form, of the line that has a slope of 6 and passes through the point (–1, –8)? a. y+8 = 6 (x+1 )