Answer:
D
Step-by-step explanation:
Answer:
150in²
Step-by-step explanation:
The surface area of a cube is given by the following equation where <em>s</em> is the length of a side:

So, in this case, s is equal to 5:

Answer:
1.05
Step-by-step explanation:
Answer:
The width of the river is about 8.39 m.
Step-by-step explanation:
Tan = Opposite/Adjacent
The width of the river is the side of a right triangle opposite the angle of 40°. The 10 m distance is the length of the side adjacent to the measured angle. So, we have ...
tan(40°) = width/(10 m)
Multiplying by 10 m, we get ...
width = (10 m)tan(40°) ≈ 8.39 m
The width of the river is about 8.39 m.