Answer: line segment
Step-by-step explanation:
A line segment is a ray that extends from one point to another. Hope this helps!
 
        
                    
             
        
        
        
6.48 divide by 6 and u will get the answer
        
             
        
        
        
Answer:  c. z = 1.35; Reject the null hypothesis
Step-by-step explanation:
Let  be the average life expectancy of its batteries.
 be the average life expectancy of its batteries.
As per given , we have
Null hypothesis : 
Alternative hypothesis : 
Since  is right-tailed and population standard deviation is also known, so we perform right-tailed z-test.
 is right-tailed and population standard deviation is also known, so we perform right-tailed z-test.
Test statistic : 
where, n= sample size
 = sample mean
= sample mean
 = Population mean
= Population mean
 =population standard deviation
=population standard deviation
For  , we have
, we have

Critical one-tailed test value for 0.10 significance level :

  Decision : Since critical z value (1.28) < test statistic (1.35), so we reject the null hypothesis .
[When critical value is less than the test statistic value , we reject the null hypothesis .]
 
        
             
        
        
        
The formula is y=mx+b
To get the slope or m, use this formula
(the second y minus the first y)/(the second x minus the first x)
Now set it up.
(10-7)/(2--1)
3/3=slope is 1.
y=1x+b
Insert one of the points for x and y.
i will do (-1,7)
7=1(-1)+b
7=-1+b
8=b
Insert this into the final equation:
y=1x+8
Try it out. If you're not sure, try both points. If it works, then you set it up correctly.