Subtract thats how you get it
x= 5 x z= 3 = 15 (4y - 2z) = 60 - -30 = 30 so its C
Answer:
ohhhh we have the same question
Step-by-step explanation:
Answer:
And the best option for this case would be:
a. (17.5, 21.7)
Step-by-step explanation:
Information given
represent the sample mean
population mean
represent the population deviation
n=42 represent the sample size
Confidence interval
The confidence interval for the mean is given by the following formula:
(1)
The degrees of freedom, given by:
Since the Confidence is 0.98 or 98%, the significance would be
and
, and the critical value would be
Replacing we got:
And the best option for this case would be:
a. (17.5, 21.7)
E^(xy) = 2
(xdy/dx + y)e^(xy) = 0
At point (1, ln2), dy/dx + ln2 = 0
dy/dx = -ln2