Brain to first correct answer

Explanation:

Add up the numbers shown: 10+11+3+1 = 25

Then we divide like so: 10/25 = 0.40 = 40%

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,

it’s the first one your welcome