This means that it's 12 times f, then add that by 24. This f is a variable. It could be any number. First, try to find out what f equals. Then use that to find the answer.
Answer:
-3
Step-by-step explanation:
Pretty sure the answer would be 1/A^4
Hi, there!
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To find the missing side length of this triangle (which is a <em>right</em> triangle), we'll use Pythagoras' Theorem.

Here,

Hypotenuse (the longest side): c
We know that

So, we can substitute our parameters, and solve for c.
square 2 and 28
add the numbers
square root both sides

Hope the answer - and explanation - made sense,
happy studying!!