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Tutor profile: Alan B.

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Alan B.
Tutor with 5+ years experience and an extensive background in math and pre medical sciences
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Questions

Subject: Geometry

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Question:

Triangle ABC and triangle XYZ are similar right triangles. The base (side YZ) of triangle XYZ is 2 and the hypotenuse is 4 (Side XZ). What is the value of cos A?

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Alan B.
Answer:

Square root of 3 over 2.

Subject: Chemistry

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Question:

Provide the electron configuration for the neutrally charged element that has a 16 protons in it's nucleus and 16 neutrons.

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Alan B.
Answer:

1s^2...2s^2...2p^6...3s^2...3p^3

Subject: Algebra

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Question:

For the polynomial function y = -2x^4 + 5x^2 -x -3: a) What is the degree of the function? b) What is the largest number of real zeros the function could have? c) What is the largest number of turning points it could have? d) What is the y-intercept? e) Describe the end behavior. f) Is the function even, odd, or neither?

Inactive
Alan B.
Answer:

a) 4 b). 4 c) 3 d). -3 e) As x approaches negative infinity, y approaches negative infinity...As x approaches positive infinity, y approaches negative infinity f) neither

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