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(Harmonic Mean) Consider three database applications. The first application can perform 40 queries per second. The second application can perform 20 queries per second. And the third application can perform 20 queries per second. For a data processing request, the first application will performance 400 queries, the second application will performance 400 queries, and the last application will performance 200 queries. These three applications need to be started one after another, from the first application to the third. What is the average processing rate (queries per second) after all 1000 operations are finished? 

As an accomplished African American musician and educator, Florence Price left her home in Little Rock, Arkansas, due to the unbearable burden “Jim Crow” laws placed on the black community.

Mandela discarded “The Call of South Africa” and adopted “Lord Bless Africa” as the national anthem of South Africa.

Please give the 16-bit floating point number encoding for the following two numbers. To simplify the computation, please use a bias of 7. All numbers are 2-based.    Sign (1bit) Exponent (4bits) Fraction (11bits) 0.11001×10−11:       −1.0011001×1001:      

English is the official language in Trinidad and Tobago due to the fact that the British assumed military control in 1797.

Ellington’s The Far East Suite is set apart from the classical tradition because:

French cultural influence in Trinidad and Tobago was the result of French control beginning in 1783.

European countries began adopting anthems in the mid-19th century, which marked a period of growing:

A gamelan is a collection of ancient stringed instruments that are either bowed or plucked.

Makam music was influenced by traditions from regions across the Ottoman Empire, including Byzantine, Armenian, Arabic, Persian, and European music.