The mean number of children in five families is 3.
How many children might be in each
family if none of them has 3 children?

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation:

i hope this is what you were looking for.

see attached graph

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours