Answer:
1859
Explanation: Petroleum became a major industry following the oil discovery at Oil Creek, Pennsylvania, in 1859. For much of the 19th and 20th centuries, the US was the largest oil producing country in the world.
Maybe while we wait for the questioner to provide the options, we can do a little general discussion here about what it means to use a primary source. Primary sources are things that come from persons directly involved in the events or lives being studied. So, any diary entries or letters of George Washington himself would count as primary sources. So would any official proclamations or letters or government documents that came from Washington's pen as president. Or the testimony of contemporaries of his who lived or worked with him would also count as primary source accounts.
So if you're looking for a historian's use of primary sources, look for the ways in which he's using historical material directly connected to the life of the person being studied. In fact, if you were able to look at a set of the false teeth George Washington wore, that would be a primary source too. They have a set at the Mount Vernon home/museum. And by looking at those actual dentures, you'd see they weren't made out of wood like the old (false) story says!
The main goal of Flying Tigers was to composed pilots from the United States Army Air Corps, Navy and Marine Corps.
Answer:
The average number of misprints per page in a company’s annual reports is 0.4. If a page is selected
at random, find the probability that it will contain more than two misprints. (5 marks)
(b) On average, one in every four new clients approached by an insurance salesman purchases an insurance policy. Suppose that the salesman approaches five new clients.
(i) Find the probability that exactly two will buy a policy. (5 marks)
(ii) Find the probability that at least two will buy a policy. (5 marks)
Explanation:
B
The first City Southern Black migrated to after leaving the rural areas and hence became a blues hotbed was known as Harlem. Harlem is the major African-American residential, business and cultural center until today. The African-American residents began to arrive in large numbers in 1905 as part of Great Migration.
