Meghan received an excellent interest rate for her loan of $12,000. Calculate the nominal interest rate compounded semi-annually if the loan accumulated to $12,788.18 in 7 years and 6 months.

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A: See this solution in below.

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A: Please see the below picture for detailed solution.

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A: We will use cos(A+B)&Sin(A+B) formulas to evaluate this as shown below

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A: Topic:- trigonometry ratios

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A: NOTE: Refresh your page if you can't see any equations. . and the given interval is  which means…

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Q: Need

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A: I have appended the formula used in the solution part

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A: We need to find out the value of cot(a) and

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A: Given; Cos(a)=4/5, a lies in q4 Sin(b)=-4/11 b lies in q3

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A: Given; Sin[sin-1(5/13)-cos-1(-4/5)].

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Q: Take this polynomial: -3x4-7x³ + 2x² + 15x + 31. Without actually graphing it, how can you tell…

A: Given: Here, without actually graphing it, we will discuss the end behavior of the polynomial. In…

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Q: Prove that, for any positive numbers "a" and "b", log(a) = b.log(a)

A: Let's prove log(a^b) = b log(a).

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A: Solved below

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A: Given query is to convert the radian to degree.

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A: To find the value of expression.