I am having a really hard time figuring this problem out. I need to see how it is worked. THANKS!

What problem?

Sorry. This one. A vertical angle of -40 is recorded between A and B. The slope distance, after meteorological corrections, is 806.388 m. What is the horizontal distance between A and B?

See

http://www.jiskha.com/display.cgi?id=1287198315

Of course! I'll be happy to help you. Please provide me with the details of the problem and I'll walk you through the solution step by step.