Answer:
A
Step-by-step explanation:
Given
x² + 6x + 4 = 0 ( subtract 4 from both sides )
x² + 6x = - 4
Solve using the method of completing the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(3)x + 9 = - 4 + 9, that is
(x + 3)² = 5 ( take the square root of both sides )
x + 3 = ± ( subtract 3 from both sides )
x = - 3 ± , thus
x = - 3 - → A
x = - 3 +
Answer:
Step-by-step explanation:
<u>Compound Interest</u>
It's the type of financial calculations that includes the interest of previous periods into the new interests earned by some initial investment or principal P.
If we want to compute the final value FV of a series of n payments R at a fixed compound interest rate i, then
Where
The question provides us the following data
i=10% compounded twice a year
n=3 1/2 years
FV=15,000
We need to convert the number of periods and the interest rate to a semester base:
Let's calculate Fm
Knowing that
Solving for R
Sara should deposit $1,842.30 twice a year to have the down payment for her own restaurant