3
Answer: ASet 16: Exponential Functions
Explanation
$10,000 is invested at 5% annual interest compounded monthly for 3 years. What is the approximate final value?
Use:
A.✓ Correct
$11,614.72
B.
$11,500.00
C.
$11,576.25
D.
$12,000.00
Detailed Explanation
Choice A is correct. Choice A is the correct answer. Apply monthly compounding. 1. Values: , , (monthly), . 2. Calculate: . 3. Result: , so . Strategic Tip: Monthly compounding: divide rate by 12, multiply exponent by 12. Choice B is incorrect because this assumes simple interest. Choice C is incorrect because this uses quarterly compounding. Choice D is incorrect because the calculation is wrong.
Key Steps:
•
The correct answer is $11,614.72
Why others are wrong:
B: Choice B is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.
D: Choice D is incorrect and may result from a calculation error.
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