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Annie S.

Undergraduate Student

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SAT II Mathematics Level 2

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Question:

What is the distance between (-2, -3, -1) and (2, 1, 1)?

Annie S.

Answer:

d = sqrt[(2+2)^2 + (1+3)^2 + (1+1)^2)] = sqrt[16+16=4] =sqrt[36] = 6

Pre-Algebra

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Question:

3x + 9 = 11 x = ?

Annie S.

Answer:

3x + 9 = 11 3x = 2 x = 2/3

Algebra

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Question:

x^2 + 5x + 6 = 0 what is x equal to?

Annie S.

Answer:

x^2 + 5x + 6 = 0 (x + 3) (x + 2) = 0 x = -3 or x = -2

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