What is the value of n in the figure below?

n = 3.9

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

n² = 1.5² + 3.6² = 2.25 + 12.96 = 15.21 ( take the square root of both sides )

n = = 3.9

your answer would be 12

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!