To solve, simply do this:

Then you'll get the answer, -7/16
Answer:
34.78 feet
Step-by-step explanation:
1) using the cosine function, I did cos(43)=x/51
This is because cosine is equal to adjacent over hypotnuse
Once I found x, I used the pythagorean theorem to get 34.78 feet
If you're struggling with graphing problems, I'd highly recommend that you check out Desmos and Mathaway. All you have to do is type the equations and it graphs it for you. Here's the first question:
Answer:
1416
Step-by-step explanation:
Correct me if I'm wrong
Answer: the area is 80
Step-by-step explanation: