Answer: 0.345
Step-by-step explanation:
Given : The incomes of families in Newport Harbor are normally distributed with Mean :
and Standard deviation : 
Samples size : n=4
Let x be the random variable that represents the incomes of families in Newport Harbor.
The z-statistic :-

For x= $800,000

By using the standard normal distribution table , we have
The probability that the average income of these 4 families exceeds $800,000 :-

Hence, the probability that the average income of these 4 families exceeds $800,000 =0.345
Answer:
4
Step-by-step explanation:
2x-2/5=4
2x= 4+(2/5)
2x= 4/5+20/5
x=(22/5)/2
x= 22/10 or 11/5
check:
2(11/5)-2/5=(22/5)-(2/5)
=20/5
=4
4.9 then divide by .7 and you get 7 then 7x3=21
So, 21 Amoeba Proteus would be lined up to equal 3 Pelomyxa Palustris.
Answer:
Unpaid balance = $56.96
Finance charge = $0.8544
New balance =$171.7944
Step-by-step explanation:
Given : Previous balance = $91.96
Payments/credits = $35.00
Monthly rate = 1.5%
New purchases = $113.98
To calculate : The unpaid balance, finance charge, and new balance using the unpaid balance method.
Solution :
Unpaid balance = Previous balance - Payments
Unpaid balance = $91.96- $35
Unpaid balance = $56.96
We have given rate of interest= 1.5%=0.015
Finance charge = Finance rate × Unpaid balance
Finance charge = 
Finance charge = $0.8544
New balance = Unpaid balance + finance charge + new transaction
New balance = $56.96 +$0.8544+ $113.98
New balance =$171.7944
I think its a rational number