different between A and B
=30-(-30)
=60
position of C from A or B
=(60÷3)×2
=40
possible value of c
=-30+40
=10
possible value of c
=30-40
=-10
Answer:
1% of 1200 is 12, so to find this we multiply 12 until we get 150
150/12 = 12.5
12.5%
Considering the desired result of the hypothesis test, we the closest mean time to 1.5 hours, hence the correct option is:
C. 1.6 hrs
<h3>What should be the mean?</h3>
The closer the mean is to the sample mean, the less likely we are to reject the null hypothesis.
In this problem, the sample mean is of 1.5 hours, hence, the closest value, considering the absolute value of the difference, is of 1.6 hours, hence option C is correct.
More can be learned about the test of an hypothesis at brainly.com/question/16313918
Answer:
C. Equation: x=4
D. Slope: undefined
Step-by-step explanation:
If a line is perpendicular to the x-axis, then it is a vertical line because the x-axis is horizontal.
The slope of a vertical line is undefined.
The equation of a vertical line through 
is 
Since the vertical line passes through (4,-2), its equation is
