Question

Please help! I know it’s a lot to ask but please show your work so I know how you did it

Answer 1

Take a look at the pic to see how I did the work here.

Answer 2

√15

Explanation:

Because x is an altitude, the largest triangle is similar to both the triangle on the left half and the triangle on the right half.

The ratio of 3 to x is equal to the ratio of x to 5 (because the triangles are similar, as stated earlier)

You write the following equation to represent it:

`(3)/(x)=(x)/(5)`, which (when the denominators are multiplied) results in:

`15 = x^(2)`

Which makes x = √15