Answer:
15 inches
Explanation:
James needs to use the Pythagoras theorem, which states that in a right-angle triangle, the sum of the squares of the other two sides is equal to the square of the hypotenuse.
c²=a²+b²
we know that a is 9 inches and that be is 12 inches
c²= (9)²+(12)²
c²= 81+144
c²=225
c=√225
c=15
after applying the measures to the Pythagoras theorem formula,
we found out that the length of the straight-edge needs to be 15 inches
The primary reason for why native peoples in california remained hunters and gatherers for hundreds of years after europeans arrived in the western hemisphere was because Both land and ocean provided an abundant food supply and resources.
human evolution is the process where humanbeing evolve according to the needs , so when there will be plenty of natural resources , then their basic needs get fulfilled by existing natural resources so they never tried to evolve themselves.
paleo-indians were living in an isolated continent , there was no fear of military attack , food scarcity, population migration , etc and there was no need for agriculture because they can get food from forest, river, ocean, etc. and their demand gets fulfilled by available natural resources , so they never tried to expand their research and never tried to adopt alien culture.
so even after hundred years of European arrival the native people of california remained hunter and gatherer.
to know more about paleo-indians click here
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It lies on the Indian Ocean side of the continent, almost entirely within the Eastern Hemisphere – hence the name “East Antarctica”. The region includes the South Magnetic Pole, the Geographic South Pole, the Ross, Scotia and Weddell Seas and the Shackleton Ice Shelf.
