Answer:
I believe the answer you are looking for is 80.
Explanation:
We are required to determine the type of outside source MacGregor used in this excerpt
The type of outside source MacGregor used in the excerpt is a newspaper article.
- Textbook: It refers to a coursebook or a formal manual of instruction in a specific subject mostly used in schools.
- An article : This is a story, report, or opinion piece written in a newspaper, magazine, journal, etc.
- Letter; This is a written or printed communication usually longer and more formal than a note.
- Website: This is a collection of interlinked web pages on the World Wide Web(www) which are typically accessible from the same base URL and reside on the same server.
Therefore, the type of outside source MacGregor used in the excerpt is a newspaper article.
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Data Integrity is a function of data that is used to modify or access, only by the individuals who are authorized to do so.
Data integrity focuses on the accuracy, consistency and completeness of data. It also ensures the safety of the given data over its entire lifecycle. In this, data must not be changed in transit and steps must be taken to ensure that data is not altered by unauthorized people.
It is the assurance that the information is trustworthy and unaltered.
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1/2 (6x-4)-(3-x)=ax+x+b
3x - 2 - 3 + x = (a+1)x + b
4x - 5 = (a+1)x +b
compare constants:
b = -5
compare coefficients of x:
a +1 = 4
a = 4-1
a = 3
so, a-b = 3 - (-5) = 8