In the san gabriel mountains in california, lookout station running deer is 18 kilometers due west of station lazy bear. the bearing from running deer to a fire directly south of lazy bear is s38.4°e. to the nearest tenth of a kilometer, how far is the fire from running deer?

7

step-by-step explanation:

the answer would be 7

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c