This is two or more equations with common variables, also known as a linear system. System Of Equations
Answer: They were turned away by members of the Arkansas National Guard.
Explanation: September 4, 1957 was the first day of classes at Central High. Governor Orval Faubus called in the Arkansas National Guard to block the black students' entry into the high school. Later on, Eisenhower sent in federal troops to escort the Little Rock Nine into the school. It drew national attention to the civil rights movement.
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Because the average temperature in the room also increased.
When we feel excitement, our blood will regulate faster and create faster metabolism. This will lead to higher body temperature because of the nutrient burning process. If this happen to all people in the arena, the average temperature is bound to be increased.<span />
Michael Swango continue to work in the healthcare industry because there was lack of checking system.
<u>Explanation:</u>
Even after killing many patients, Michael Swango still kept on working in the health care industry because of the lack of proper checking system in the hospital and more over the administrators of the hospitals were not ready to accept the fact that one of the people working in the hospital could kill his patients.
And therefore Swango was allowed to work even after he was imprisoned. The attempt to put an end to the crimes committed by Swango was done by the judge Jacob Mishler who gave the punishment to Swango about three consecutive life terms.
North Korean life expectancy is 71 years old.
Explanation:
The average for men is 67.2 years and for women its 75 years.
