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# Tutor profile: Sheryl E.

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Sheryl E.
Mathematics Teacher for 9 years / English Tutor for 3 years
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## Questions

### Subject:Trigonometry

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Question:

Using the Pythagorean Theorem, how are you going to find the measure of your adjacent side given your hypotenuse and opposite side?

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Sheryl E.

From the original formula, c^2 = a^2 + b^2, derive the formula for adjacent: where: c = hypotenuse; a = adjacent; b = opposite 1. Transpose b^2 to the left hand of the equation. 2. That will make c^2 - b^2 = a^2. 3. Using the symmetric property of equality ( a = b then b = a), interchange the left hand and right hand of the equation. 3. That will make a^2 = c^2 - b^2. 4. Extract the roots of both hand of the equation. (square root since the exponent are 2) 5. That will make a (adjacent) = square root of (c^2 - b^2)

### Subject:Statistics

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Question:

What is the difference between Statistics and statistic?

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Sheryl E.

Statistics (with s) refers to the collection, analyzation and interpretation of data while statistic (without s) refers to the data gathered from the sample.

### Subject:Algebra

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Question:

What is (2x^3) x ( -5x^6)?

Inactive
Sheryl E.

1. Multiply the numerical co efficient: (2• -5) = -10 2. Since the variables are the same, copy it then add the exponents (Product Rule of Exponents) x ^ (3 + 6) = x^9 3. Rewrite the answer -10x^9

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