The sides of a triangular lot are represented by x, 3x, and 3x + 2. find each side if the perimeter is 632 feet.

a) what number, when added to negative four, is equal to negative five?

step-by-step explanation:

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,