Identify the interval(s) on which the function y = x^2 + 12x + 27 is positive.
1 answer:
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Answer:
$25,193.17
Explanation:
Given:
• Principal Felipe borrowed, P=$8000
,• Annual Interest Rate, r=16.5%=0.165
,• Compounding Period, k=12 (Monthly)
,• Time, t=7 years
We want to determine how much he will owe after 7 years.
In order to carry out this calculation, use the compound interest formula below:
Substitute the values defined above:
Finally, simplify and round to the nearest cent.
After 7 years, Felipe will owe $25,193.17.
The equation of the quadratic function is f(x) = x²+ 2/3x - 1/9
<h3>How to determine the quadratic equation?</h3>From the question, the given parameters are:
Roots = (-1 - √2)/3 and (-1 + √2)/3
The quadratic equation is then calculated as
f(x) = The products of (x - roots)
Substitute the known values in the above equation
So, we have the following equation
This gives
Evaluate the products
Evaluate the like terms
So, we have
f(x) = x²+ 2/3x - 1/9
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