# Tutor profile: Amanuel B.

## Questions

### Subject: Pre-Calculus

Solve the following equation following the given parameters: f(x) = (27/x) - 3 f(3) = ?

In this case, f(3) means that x = 3. This means we have to substitute x with 3 in our original f(x) function. This gives us: f(3) = (27/3) - 3 Simplifying this, we get: f(3) = (9) - 3 = 6

### Subject: Biology

The Krebs Cycle is a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of a compound derived from carbohydrates, fats, and proteins, into adenosine triphosphate (ATP) and carbon dioxide. What is this compound or metabolite that is being oxidized in the Krebs cycle? Hint : When this compound is oxidized, it turn into Acetyl-CoA

Pyruvate

### Subject: Calculus

Different the following equation using the chain rule: f (x) = sin (2x)

First, lets define the inside function, in this case f(x), and the outside function g(x) f (x) = sin( x) and g (x) = 2x The derivative of the original function is the derivative of the outside function g(x) times the derivative of the inside function f(x) : F' (x) = f' (g(x)) g'(x) = cos(2x) * 2 F' (x) = 2cos (2x)

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