It's dependent on the context. A book may ask you to find the f'(x) of a function and you may have to use a u sub in your problem which requires you to find the dy/dx of what you substitute. So in this case both would be used.

7 0

3 years ago

If f(x) = g(x+1) and g(x) = x^2, find the value of f(3).

Elena-2011 [213]

$\bf \begin{cases} f(x)=&g(x+1)\\ f(3)=&g(3+1)\\ &g(4)\\[-0.5em] \hrulefill& \hrulefill\\ g(x)=&x^2\\ g(4)=&4^2\\ &16 \end{cases}\qquad \qquad f(3)\implies g(4)\implies 16$

8 0

3 years ago

You have budgeted $35 a day per person. Your group has 3 people total for a week. What is the cost?

Elan Coil [88]

Answer:

its the last answer, the $735

Step-by-step explanation:

6 0

2 years ago

Please help! will give brainliest! financial lit.!

lianna [129]

Answer:

a. Revenue is the amount of income earned before paying costs of production, while profit is the financial benefit gained after paying costs of production.

Step-by-step explanation:

3 0

3 years ago

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