Question

If AB = 12 and BC = 3, what is AC?

Answer 1

`(36)/(B^2)`

Explanation:

Given:

`AB=12\\BC=3`

Find:

`AC`

First, arrange equation 1 to isolate A by dividing both sides by B:

`AB=12\\A=(12)/(B)`

Then, arrange equation 2 to isolate C by dividing both sides by B:

`BC=3\\C=(3)/(B)`

Now, multiply A and C together and simplify:

`AC=(12)/(B)*(3)/(B)`

`AC=(36)/(B^2)`

Answer 2

Answer: AC=15

Explanation:

AC=AB+BC

AC=12+3

AC=15