Answer:
Height of the light house 
Step-by-step explanation:
Distance of light house from boat = 100 ft
Angle of elevation from boat to the top of light house = 2°
Height above water while taking measurement = 4 ft
The figure of the situation is shown below.
For Δ ABC



Multiplying both sides by 100.


∴ 
Height of the light house 
About 90 maybe but not sure
Answer:
5
Step-by-step explanation:
1/3(12+3x6)-5
Multiply 3 and 6 to get 18.
1/3(12+18)-5
Add 12 and 18 to get 30.
1/3x30-5
Multiply 1/3 and 30 to get 30/3
30/3-5
Divide 30 by 3 to get 10.
10−5
Subtract 5 from 10 to get 5.
5
1. 311
2. 522
3. 603
4. 341.47826087
5. 221.558823
5b. All i did was divide the regular way or u could just put it in a calculator?
Average speed = 5/2 = 2.5 km/h