Answer: z= -2.35
Step-by-step explanation:
When the population variation is know, then we calculate the z-statistic.
Formula to calculate the z-test statistic is given by :-
where , n= sample size
= sample mean
= Population mean
=Population standard deviation.
As per given we have,
n= 270
Then, z-statistic will be
(Substitute all the values )
Hence, the value of the test statistic= z= -2.35
3 gallons
4 quarts equal a gallon
so 12 quarts equal 3 gallons
Answer:
y = (⅖)x - 5
Step-by-step explanation:
Slope: (-3+5)/(5-0) = 2/5
(0,-5) means c is -5
y = (⅖)x - 5
Answer:
The total money in account after 8 months is $72 + $8 x
Step-by-step explanation:
Given as :
Total money available in saving account = $72
The money saves each month in account = $x
So, The money saves in account after 8 months = $x × 8 = $8 x
Let The total money in account after 8 months = $A
Or, A = money available in saving account + money saves in account after 8 months
i.e A = $72 + $8 x
So, The total money in account after 8 months = A =$72 + $8 x
Hence, The total money in account after 8 months is $72 + $8 x Answer
