a man's speed with the current is 15km/hr and the speed of the current is 2.5km/hr.the man's speed against the current is
1 answer:
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The area of the base (six triangles with a base 15m and a height 7.5√3m):
The area of side walls (six triangles with a base 15m and a height 12m)
The surface area:
The area of side walls (six triangles with a base 15m and a height 12m)
The surface area:
Answer:
B) 0.42
Step-by-step explanation:
population density=number of people/square units
we plug in 2,100 for the first one but we don't know the second one for that we need the area which is A=π so the radius is 40 millimeters so
=1600 1600*π=5024
2,100/5024=0.417 round it up and it is 0.42
so B) 0.42 is the answer