Which addition does the model below represent?
5

5 4 3 2 1 0 1 2 3 4
o 3+(-1)
o 3+4
o 3+(-4)
o 3+1

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,

i believe it's a.

i'm not sure on this one, most likely correct.

we can't see all full 4 options, but if this is the full option, than the very left one is correct:

-2/5 * -3 3/4

remake the question, adding a picture of all the question, or write down the full left and right answers.