Answer:
C
Step-by-step explanation:
Answer:
17000 batteries
Step-by-step explanation:
Three years and one month is equivalent to the mean minus one standard deviation.
Three years and seven months is equivalent to the mean plus one standard deviation.
For a normal distribution, we know that 68% of population is between mean ± 1 sd, then can be expected that 25000*68% = 17000 of batteries last between three years and one month and three years and seven months
Where are the inequalities?
Answer: it is -1
Step-by-step explanation:
5*5x=25x
5*3=15
25x+15=-10
25x= -10-15
25x= -25
X=-25/25
= -1
Answer:
y=-3
Step-by-step explanation:
-2(-25)+2y=44
Substitute -25 for x
Then multiply
50+2y=44
-50 -50
Subtract 50 on both sides
2y/2=-6/2
Divide 2 and 6
Answer is -3
