Term that characterizes early groups of nomads

the term for arab nomads is bedouin.   it also means “desert dwellers ”.   it refers to groups who live in the arabian and syrian deserts.   the bedouins’ territory extends from the deserts of north africa to rocky islands on the middle east.   they live in tribes and herd goats and camels as part of their livestock.   they value the camel as a source transportation as well as food and water.   despite the harsh conditions that they live in, they adapted very well to desert life.

explanation:

the correct answer is “opportunity cost”. opportunity cost is what a company misses out because it decided in one option over another one. in this case, the company decided to invest in building a factory so it gave up another possible benefit or profit in order to achieve success with the factory.  

trade-off is not the correct answer since it is a situation in which you accept losing something in return for benefits in other areas.

and finally, consequence is a general term used to accept what it comes when you make a decision. it can be a positive or negative consequence depending if the decision you took was the correct one.  

254.34

step-by-step explanation:

the formula for area of a circle is given by

a = pi * r^2

a = pi * 9^2

a = 81*pi

using 3.14 as an approximation for pi

a = 3.14*81

a = 254.34