# Tutor profile: Sharon P.

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Sharon P.

Tutor for 4 years

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## Questions

### Subject: SAT II Mathematics Level 2

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Question:

Calculate the magnitude of the vector w = (4, 5, 0). Round to 1 decimal place.

Inactive

Sharon P.

Answer:

Magnitude of w = sqrt ( 4^2 + 5^2 + 0^2) = sqrt (16+25) = 6.4

### Subject: SAT II Mathematics Level 1

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Question:

Find the coordinates of the center of the circle. (X-4)^2 + (Y-3)^2 = 64

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Sharon P.

Answer:

(4,3) is the center of the circle.

### Subject: Algebra

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Question:

The price of a dress falls from $40 to $35. Calculate the percentage decrease in the price.

Inactive

Sharon P.

Answer:

Initial quantity = $40 Final quantity = $35 Difference = $40-$35 = $5 What percentage of $40 is $5? 5*100/40 = 12.5% There is a 12.5% decrease in the price of the dress.

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