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Katena32 [7]
3 years ago
14

A credit card had an APR of 11.91% all of last year and compounded interest daily. What was the credit card's effective interest

rate last year?
Mathematics
2 answers:
zysi [14]3 years ago
6 0

Solution:- For credit card, there is interest rate for borrowing money from the bank.  

and that interest rate is termed as yearly rate which is known as annual percentage rate (APR).

Now for the given question APR of a credit card i= 11.91%

and compounded interest daily so, n=365 days

Now for effective interest rate r=(1+\frac{i}{n}^n)-1

r=(1+\frac{0.1191}{365})^{365}-1 \\\Rightarrow\ r=(1+0.0003)^{365}-1\\\\\Rightarrow\ r=(1.0003)^{365}-1=1.1238-1=0.1238

=12.38%

So, the effective interest for last interest is 12.38%

GrogVix [38]3 years ago
5 0

Answer:The correct answer for APEX is 12.64%

Hope this helps :)


Step-by-step explanation:


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Step-by-step explanation:

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<u>Answer:</u>

Angle A = 39°

<u>Step-by-step explanation:</u>

We are given that there is a triangle ABC where a = 9, c = 5 and angle B = 120° and we are to find the measure of angle A.

But first we need to find the side b using the law of cosine:

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