Is there a picture? I would love nothing more than to help but there is no data provided :(
Answer:
42°
Step-by-step explanation:
angle 3 + angle 4 = 180° because together they make a straight line. So your equation should be 23x + 7x = 180. Add the like terms and you get 30x=180. Divide by 30 on both sides to get x. now you know that x=6. angle 4 = 7x. so you would multiply 7*6 to get 42. Thus angle 4= 42°
Answer:
3rd one
Step-by-step explanation:
cos (90° - x) should be the answer
The answer for the problems are below in the picture let me know if that makes sense.
