The compound interest formula is:
t= 3 years
n = periods compounded in a year.
a. compounded semiannually:
b. compounded quarterly:
c. compounded monthly:
d. compounded continuously:
The continously compounded interest equation is:
A water tower casts a shadow that is 24 foot long. A 9.5 foot tall tree casts a shadow that is 8 foot long. What is the height of the water tower?
The formula is given as:
Height of the tower/Shadow of the tower = Height of the tree/Shadow of the tree
Let the Height of the tower = x
x/24 = 9.5/8
8x = 24 × 9.5
x = 24 × 9.5/8
x = 28.5 feet
Therefore, the height of the water tower is 28.5 feet
Given : One of the questions on a survey asked adults if they used the internet at least occasionally.
450 out of 478 adults aged 18–29 answered Yes.
Then, the point estimate of the proportion of adults aged 18–29 who use the internet will be :-
Thus , a point estimate of the proportion of adults aged 18–29 who use the internet= 0.9414