Maria S.

Student at New York University

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Polish

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Question:

What does it mean "Jak się masz?" in Polish?

Maria S.

Answer:

It means "How are you?".

Pre-Calculus

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Question:

Find the inverse of the function: y = (x + 8)^{3} + 7

Maria S.

Answer:

Interchange y and x: y = (x + 8)^{3} + 7 => x = (y + 8)^{3} + 7 Solve for y: x = (y + 8)^{3} + 7 x - 7 = (y + 8)^{3} y + 8 = \sqrt[3]{x - 7} y = \sqrt[3]{x - 7} - 8

Pre-Algebra

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Question:

Identify the y-intercept of the parabola: y = -5x^{2} -7x - 8

Maria S.

Answer:

The y-intercept is the point on the graph where x=0. Substitute x=0 into the function and simplify: y = -5(0)^{2} - 7(0) - 8 = -8 Thus, the y-intercept is -8.

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