Chapter 2.7, Problem 20P

Please help with a detailed explaintion how to answer question

Please help with a detailed explaintion on how to answer this question

Please help with a detailed explaination how to get the answer

MATLAB. Awnser written questions (*) in the comments. Null, Rank, and most functions outside of rref() and disp() are not allowed!

MATLAB. Awnser written questions (*) in the comments. Null, Rank, and most functions outside of rref() and disp() are not allowed! Solutions must be given manually! Elementary form means to reduce to RREF manually, without rref(). Please see other attached image for explanation

In ΔEFG, e = 520 inches, ∠E=26° and ∠F=107°. Find the area of ΔEFG, to the nearest 10th of an square inch.

In ΔABC, a = 380 inches, ∠A=72° and ∠B=9°. Find the area of ΔABC, to the nearest 10th of an square inch.

MATLAB. Awnser written questions (*) in the comments. Null, Rank, and most functions outside of rref() and disp() are not allowed!

MATLAB. Awnser written questions (*) in the comments. Null, Rank, and most functions outside of rref() and disp() are not allowed! Solutions must be given manually! Elementary form means to reduce to RREF manually, without rref(). Please see other attached image for explanation