The following formula for compound interest applies:
where A is the amount after t years, P is the principal and r is the annual interest rate expressed as a decimal. Plugging the given values into the formula gives:
The amount after 4 years is therefore $2,431.01
Even is 2,4,6
Greater than 4 is 5,6
So from 1,2,3,4,5,6 - six options good for us is 2,4,5,6 - 4 options
P=4/6=2/3
Answer:
5
Step-by-step explanation:
BD = 16, so:
2y − 2 + y + 3 = 16
3y + 1 = 16
3y = 15
y = 5
Answer:
Step-by-step explanation:
When population standard deviation is not given , then the formula to find the confidence interval for population mean is given by :-
, where = sample mean.
s= sample standard deviation.
n= sample size.
= Critical t-value (two tailed ).
Given : n= 12 , , s=11.7
Significance level =
Degree of freedom : n- 1= 11
Using t- distribution , the critical t-value =
Now, the required 95% CI for the true mean cholesterol content of all such eggs will be :-
Hence, the required confidence interval =
Answer:
9 days
Step-by-step explanation:
Let x = days taken by C to do it alone
In one day, A can do: 1/12 (part of the whole work)
In one day, B can do: 1/18 (part of the whole work)
In one day, C can do: 1/x (part of the whole work)
In one day,together A, B and C can do: 1/4 (part of the whole work)
we have this equation:
1/x + 1/12 + 1/18 = 1/4
--> 1/x = 1/4 - 1/12 - 1/18 = 1/9
--> x = 9 (days)