the answer is 470
Step-by-step explanation:Because 470+470 which equals 940 and the square root is 30
Answer:B
Step-by-step explanation: Alternate exterior angles theorem
Answer:
Option B) 9.1
Step-by-step explanation:
We are given the following in the question:
Average score = 490.4
Standard deviation = 63.7
Sample size, n = 49
Formula:

Putting values, we get,
Standard error =

Thus, the correct answer is
Option B) 9.1
There are 7,920 minutes in 5.5 days
60minutes in an hour
24hours in a day
60 times 24 times 5.5 = 7,920
D is the answer for equivalent