Answer:
So, the confidence interval is [34.08, 38.72].
Step-by-step explanation:
We know that a random sample of 18 fields of barley has a mean yield of 36.4 bushels per acre and standard deviation of 7.37 bushels per acre.
We have :
We use the Appendix: Critical Values Tables, and we get that:
We calculate the margin of error:
We get the boundaries of the confidence interval:
So, the confidence interval is [34.08, 38.72].
Answer:
6 hours.
Step-by-step explanation:
deal: 135-(60+12.5h)=y
let h= # of hrs
135-60=75.
75/12.5=6 hours.
Hey next time use your calculator, if you can.
Since these problems are using this equation : 
we can derive into this immediately.
Q1: 525 (Try it, don't copy, it's not nice ;) ).
Q2: 865.28
Q3: By using logs: 0.0566 years. (I'm not sure on that one...) Sry
Answer:
c
Step-by-step explanation:
Answer:
(-3, -4)
Step-by-step explanation:
f(x) = x – 1 and g(x) = –x – 7
f(x) = g(x)
- x-1= -x-7
- 2x= -6
- x= -3
- f,g= -4
