Question

,

Answer 1

What's the question? What x do you mean

Answer 2

\[\tan(42)=x/5\](On degrees)
\[x=5*tan(42)\](Use Calculator)
x=4.50202022

Therefore, D

Answer 3

Not using calculator:
42 degrees is similar to 45 degrees.
If it is 45 degrees, x=5

Therefore, x must be pretty close to 5.

So, D.