Answer: 10
Step-by-step explanation:
Answer:
10+4=14
8+6=14
13+1=14
x =76.45 degrees
72 + 252 – 2(7)(25)cos _x__=242
combine like terms
324-350cosx = 242
subtract 324 from each side
-350x = -82
divide by -350
cos x = -82/-350
cos x = 82/350
take the arccos of each side
arccos (cos x) = arccos (82/350)
he is the answer
19
hope this helps
