Answer: C. 12.5
Step-by-step explanation:
Given : A manufacturer of new light bulbs claims the average lifetime of its long-life bulb is more than 4000 hours.
Population mean : 
Sample size : n= 100
Sample mean : 
Standard deviation: 
The value of test-statistic is given by :-

Hence, the value of the test statistic for this problem is 12.5.
Answer:
alr 5x+11 and 2x-3
5x+11=16x
2x-3=-1x
Step-by-step explanation:
df
f
ff
f
f
g
g
t
t
t
t
t
t
y
y
y
y
The student messed up on step one. The proper factoring is (x-4) (x+2)
The correct graph would be graph A.
Since the line hits the y-axis at -1. And it goes down 2 and to the left 3 for each point.
Answer:
128
Step-by-step explanation:
180 - 52