Person Hired a Firm to Essay

Total Length: 403 words ( 1 double-spaced pages)

Total Sources: 1

The formula is found in Mathematics in Our World on page 273.

Sn = the sum of n terms of the sequence (currently unknown)

a1 = the first term of the sequence an = the nth term of the sequence a1= 100

an= 300

Sn= n (a1+an)

Sn= 9(100 + 300)

Sn = 9(400)

Sn = 4.5(400) = 1800

It will cost $1,800 to build a 90-foot tower.

Question 37: A person deposited $500 in a savings account that pays 5% annual interest that is compounded yearly.
At the end of 10 years, how much money will be in the savings account?

Each year, 5% is added to the balance (B) in the savings account. This problem represents a Geometric sequence because each year is multiplied by the same number. In this case it is 1.05. It is 1 plus an additional 5% each year.

B + B (.05)

B (1+.05)

B (1.05)

First, we need to identify the following numbers:.....

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