Step-by-step explanation:
cotx=t
t^2-6t-5=0
t=cotx=1or5
Answer:
x=6
Step-by-step explanation:
Every point on a vertical line has the same x-value. Use the x-value of the point to find the equation of the vertical line.
x
=
6
I don't think this is right but 64 ft.
Answer:
Step-by-step explanation:
Given that a nutrition lab tested 40 hot dogs to see if their mean sodium content was less than the 325-mg upper limit set by regulations for "reduced sodium" franks
90% confidence interval is
(317.2, 326.8)mg.
Using confidence intervals,we can check whether null hypothesis is true.
Here

(left tailed test at 10% significance level)
We check whether confidence interval 90% contains the mean value.
We find 325 belongs to the confidence interval
Hence H0 is true
The hot dogs do not satisfy.