L-11 l is this an adsolute value question? and how do i solve it ?

Yes, that is an absolute value question. The absolute value of that is 11.

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,