Answer:
Step-by-step explanation:
can be seen as
which further simplifies to
and writig this in radical form we get
so the exact answer is
and in decimals we can use calculator to get 5.20
2nd answer is it i think
c = 36
x^2 + 12x
Take the coefficient of x
12
divide by 2
12/2 =6
square it
6^2 = 36
Add this
c=36
10:35
11:35
12:35
1:35
2:35
=Thats 4 hours
and then 40-35=5
So 4hours 5 minutes