The time required for the first stage of an assembly line is normally distributed with a mean of 28 minutes and variance of 5 minutes, while the time required for an independent second stage is normally distributed with a mean of 17 minutes with a variance of 4 minutes. what is the probability that the two stages take more than 50 minutes?

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

the answer to the expression is 83