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Tutor profile: Shivangi R.

Inactive
Shivangi R.
Student at UC Berkeley, Tutor for 4 years
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Questions

Subject: Calculus

TutorMe
Question:

Find the derivative of (x^3+7x+1)/x.

Inactive
Shivangi R.
Answer:

I use the quotient rule for derivatives. ((3x^2+7)(x) - 1(x^3+7x+1))/x^2 (3x^3+7x-x^3-7x-1)/x^2 (2x^3-1)/x^2

Subject: Statistics

TutorMe
Question:

There are three boxes, each of which contains two coins. One box has two gold coins, one has two silver coins, and one has a gold coin and a silver coin. A box is picked at random and then a coin is picked at random from the box. Given that the coin is gold, what is the chance that the other coin in the box is silver?

Inactive
Shivangi R.
Answer:

One has to use Bayes Rule to solve this problem. (1/2)(1/3)/(1/6)+(1/3) = 1/3

Subject: Algebra

TutorMe
Question:

solve the equation: -0.25 x + 1.3 = -0.55 x - 0.2

Inactive
Shivangi R.
Answer:

-0.25 x + 1.3 = -0.55 x - 0.2 0.3x = -1.5 x = -5

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