Question

The brenda one is the question thank youuu:)

Answer 1

C. y = 11000(1.086)^7

Step-by-step explanation:

Given the following data;

Principal = $11,000

Interest rate = 8.6% = 8.6/100 = 0.086

Time = 7 years

To derive a mathematical expression, we would use the compound interest formula;

`A = P(1 + (r)/(100))^(t)`

Where;

A is the future value.

P is the principal or starting amount.

r is annual interest rate.

t is the number of years for the compound interest.

Substituting into the formula, we have;

`A = 11000*(1 + (8.6)/(100))^{7`

`A = 11000*(1 + 0.086)^{7`

`A = 11000*(1.086)^{7`

`A = 11000*1.78`

A = $19,580