I hope this helps you
tan (13.180/8)
tan (2340/8)
tan(292,5)
-2,41
Since AB and BC are two parts of AC, AC = AB + BC
let's plug the expressions from the question into our equation above.
19 = 3x + 1 + 2x - 7
Combine like terms
19 = 5x - 6
Add 6 to both sides.
25 = 5x
Divide both sides by 5
5 = x
Answer:
5+3 square root of 5 units
20 markers are needed to cover the 10 kilometers.