The price of mailing a small package is 0.32 for the first ounce and 0.21 for each additional ounce. simone paid 1.16 to mail her package. how much did it weigh?

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.

"which statement is necessarily true if bd is an altitude to the hypotenuse of right ? abc? a.) ? adb? ? bdc b.) ? adb~? bdc c.) abbc=acbd d.) ? bac? ? bdc"

Ofin . (2,4) (2,1) a. y= 2 b. x= 2 c. x= -2 d. y= 2x