Answer:
m + n = 140°
Step-by-step explanation:
∵ The measure of the angle next to n = 40° ⇒ vertically opposite angle with the angle 40°
From parallel lines m , n and angle 40° next to n are interior supplementary means their sum is 180°
∴ m + n + 40° = 180°
∴ m + n = 180 - 40 = 140°
Answer:
15-5(4k-7)=50
<=> 15 - 20k + 35 = 50
<=> 50 - 20k = 50
<=> -20k = 0
<=> k=0
Step-by-step explanation:
Answer:
The critical value for a 98% CI is z=2.33.
The 98% confidence interval for the mean is (187.76, 194.84).
Step-by-step explanation:
We have to develop a 98% confidence interval for the mean number of minutes per day that children between the age of 6 and 18 spend watching television per day.
We know the standard deveiation of the population (σ=21.5 min.).
The sample mean is 191.3 minutes, with a sample size n=200.
The z-value for a 98% CI is z=2.33, from the table of the standard normal distribution.
The margin of error is:

With this margin of error, we can calculate the lower and upper bounds of the CI:

The 98% confidence interval for the mean is (187.76, 194.84).
From this statement, you can conclude that this is a negative linear function because the x-intercept is to the right of the y-intercept.
Hope this helps!
Answer:
the corect answer is C
Step-by-step explanation: