Answer:
x = 18
Step-by-step explanation:
7x - 24 is a verticasl angle with an angle that is an...
Alternate interior angle with the combines values of 49 and 3x so they are equal
49 + 3x = (7x -23)
72 = 4x
x = 18
Answer:
no solutions
Step-by-step explanation:
The lines are parallel and never intersect. The solutions occur when the lines intersect, so there are no solutions
Answer:

Step-by-step explanation:
we know that
1 Kilometer (km) is equal to 100 dekameters (dam)

To convert km to dam , multiply by 100
we have

Convert to dam

Answer:
b) The width of the confidence interval becomes narrower when the sample mean increases.
Step-by-step explanation:
The confidence interval can be calculated as:

a) The width of the confidence interval becomes wider as the confidence level increases.
The above statement is true as the confidence level increases the width increases as the absolute value of test statistic increases.
b) The width of the confidence interval becomes narrower when the sample mean increases.
The above statement is false. As the sample mean increases the width of the confidence interval increases.
c) The width of the confidence interval becomes narrower when the sample size n increases.
The above statement is true as the sample size increases the standard error decreases and the confidence interval become narrower.