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Mehde H.

I have been a tutor for nearly five years. I can help in most sciences and math

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Organic Chemistry

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Question:

Provide a synthesis for the following benzene-->phenol

Mehde H.

Answer:

1) HNO3, H2SO4 2) H2, Pd 3) NaNO2, HCl 4) H2O, H2SO4

Pre-Calculus

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Question:

Find the domain and range of the following equation: y=x^2+6x+9

Mehde H.

Answer:

It would help to first find out the x-intercept of the equation. In this case, it would be x=-3. Then, I would draw a graph based on this information. From the graph, it can be observed that x can be any number, while y can only be anything greater than or equal to zero. Therefore, the proper anwer would be x=(-∞,∞) and y=[0,∞]

Algebra

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Question:

Write an equation of the line containing the given point and parallel to the given line. (3,-8) 3x-5y=4

Mehde H.

Answer:

The first step if this question would be to isolate y in the equation to bring it into an equation of a straight line (y=mx+b). From that form, the slope can be determined to be m=3/5. After that has been determined, the slope and the point is plugged into the point-slope equation (y-y1)=m(x-x1). Then simplify. Answer is y=3/5x-(45/5)

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