Answer:
314 mi^2 (3 s.f.)
Step-by-step explanation:

diameter of sphere= 10mi
radius of sphere= 10÷2= 5mi
Surface area of sphere= 4(pi)(5^2)= 100pi= 314mi^2 (3 s.f.)
you will save 6 dollars If you buy 2 packages, instead if 6 individual pairs.
Answer:
1,9 (900) 9 (90) 8
Step-by-step explanation:
The first nine equals 900, and the second equals 90.
Answer:
Step-by-step explanation:
Given that the mean salary for a new teacher in your town is $48,000
You believe it is higher for new teachers in a neighboring town.
So to prove or disprove your claim you have to show statistical evidence.
For that hypothesis testing is necessary.
You must conduct a hypothesis test for comparing the mean of salary of new teacher with neighbouring places
The hypotheses wouldbe

where mu is the average for neighbouring states.