the question is confusing but the ? angle is 90 degrees don't know if that helps at all though sorry
This can be solved using the formula for t test which is = x - mu over standard deviation divided by the square root of the number of samples. In this case, it is 1185 - 1200 over 70 divided by square root of 100 which give us a value of 2.14 which is equal to .9839 in area. Only rarely, just over one time in a hundred tries of 100 light bulbs, would the average life exceed 1200 hours.
Answer:
There are two solutions:
x = 5/2 = 2.500
x = 8
Step-by-step explanation:
Get c by itself....
c >7 or c<-5
I don't see any graph so I can't help you anymore than that
Answer:
Not sure!
Step-by-step explanation:
