Answer:
49.0809
Step-by-step explanation:
Round it up to 49.10
Let
be the random variable for the time a given person from the population spends sleeping. With
we have

where
.


Rounded to the nearest whole number, that comes out to about 31%.
Answer:
9u^3 - 54v^2 + 36
Step-by-step explanation:
Multiply -9 by all inside segments.
^.^
- Amanda
Answer:

Sum of roots ,

Product of roots ,

Substituting the values in the above equation ,

hope helpful~