Answer:
D. A(n) = P + (n-1)i*P
Step-by-step explanation:
The formula to calculate the simple interest is:

Replace i by
, then
SI = Pni
where n is the number of years.
So, for n-1 years, the simple interest is:
SI = P(n-1)*i
The Total amount is:
A(n) = P + (n-1)i*P
For this case we have the following expression:

We apply distributive property:

We rewrite in equivalent form:


Answer:

The same shape and size is the parallelogram because if you draw a a diagonal line through the parallelogram you would get a triangle hope this helps.
Answer: y = 4x - 11
Step-by-step explanation:
m = 4 , ( 2,-3 )
y - y1 = m ( x - x1 )
y - (-3) = 4( x - 2 )
y + 3 = 4x - 8
y = 4x - 11
Answer:
The class interval is: 20-30
Step-by-step explanation:
Let l be the lower class limit and u be the upper class limit.
Then according to given statement that class mark is 25

And
Class size is 10
So, the second equation will be:

Adding equation 1 and 2

Now putting u =30 in equation 1

A class interval is written in the form that lower limit comes first and upper limit comes second.
So,
20-30
Hence,
The class interval is: 20-30