1) x=9, because we can use the Pythagorean theorem, x^2 + 144 = 225, x^2 = 81
2) 
, because 6^2 +6^2 = 72, 
3) 
, because 
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The statement that explains why these regions are more heavily populated is because E. these regions have higher carrying capacities.
- Carrying capacity refers to the average population density of an area. It should be noted that the average population size of a particular organism can be due to several environmental factors.
- It should be noted that the areas around river deltas, upland lakes, and river valleys will have higher densities.
- The reason for this is because people will love to live around such areas and they, therefore, have higher carrying capacities.
In conclusion, the correct option is that the regions have higher carrying capacities.
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<span>Pass to a teammate or Take a shot so your team can drive the net.</span>
