all the answers would be irrational.
Answer:Obtain a systematic sample by selecting every 20th vehicle that passes (in any lane and going in any direction).
Step-by-step explanation:
Answer:
1c, 5c, 25c and 1 dollar
Step-by-step explanation:
With 4 coins of 1c : 4 cents
4 coins of 5c: 20 cents
4 coins of 25c: 1 dollar
4 coins of 1 dollar: 4 dollars
So, 4c + 20c + 1 dollar + 4 dollars = 5.24 dollars
Density = Mass / Volume = 2000/0.5
Density = 4000 Kg/m^3
P.S. Hello from Russia :^)
