It’s the Last one bcuz you have to divide y by the X and the last one all equal to 0.5
1.3+4.2+2.8+5.9+8.1=?
3+2+8+9+1=23
carry the 2 over to the ones place
1+4+2+5+8=2=20
add the 2
22
drop the decimal
22.3m
Answer:
39 feet
Step-by-step explanation:
Since the triangle is right we can use the tan ratio to find BC
tan 30° =
= 
multiply both sides by 68
68 tan 30° = BC ⇒ BC ≈ 39 feet ( to nearest foot )