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Sloane G.
Tutor for 3 years
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Spanish
TutorMe
Question:

Translate the following sentence: I would have gone to the market yesterday, but I was too busy with my parents' anniversary.

Sloane G.
Answer:

Iría al mercado ayer, pero estuvo demasiado ocupada con el aniversario de mis padres.

Pre-Calculus
TutorMe
Question:

Find the inverse of f(x)=(4x+9)^1/2.

Sloane G.
Answer:

First, replace f(x) with y: y=(4x+9)^1/2 Then, switch the variables: x=(4y+9)^1/2 Solve for y: x^2=4y+9 x^2-9=4y (x^2-9)/4=y Finally, replace y with f^-1(x): f^-1(x)=(x^2-9)/4

Calculus
TutorMe
Question:

Solve the differential equation dx/dy=1/(4x+3).

Sloane G.
Answer:

First we'll separate the variable on both sides: dx•(4x+3)=dy Then, take the integral of both sides: ∫dx•(4x+3)=∫dy This leads us to: 2x^2+3x=y

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