A.national security council
b.office of policy development
Answer:
September 4, 1957
Explanation:
The Little Rock Nine arrived for the first day of school at Central High on September 4, 1957. Eight of them arrived together. However, one of them, Elizabeth Eckford, didn't have a family phone and ended up arriving alone.
However, the Arkansas National Guard was called and they prevented the students fro entering school, under the orders of Governor Faubus.
Considering the description above, Pierre's average speed for this race, in miles per hour, is measured as:
Given that Pierre's average speed is calculated in miles per hour;
Then, we divide his total mileage by his total time;
Therefore, the total number of miles Pierre covered is the distance from starting point S to finish line F;
=> This is depicted as "SF." (Total mileage);
Again, the total elapsed time from point S to point F is depicted as "t.F." (Total Time).
Hence, in this case, Pierre's average speed for this race, in miles per hour, is SF ÷ t.F. [Total mileage ÷ Total time]
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Answer: by replacing somebody of the workers for machines
Explanation: