If the legs are 9 and 12, then the hypotenuse is 13.5.
For this case we have the following functions:

We must find
. By definition of compound functions we have to:

So:
Taking into account that:

Different signs are subtracted and the major sign is placed.

Finally we have to:

Answer:

Answer:
X = -1
Step-by-step explanation:
Subtract 12 from both sides
Subtract 12 from 9 to get -3
Divide both sides by 3
Divide -3 by 3 to get -1
Answer: 1.03% Explanation: Divide the amount of money after 1 year by his original investment.