Select all the correct answers.

When a historical record is not dated, which two methods might historians use to check its authenticity?

1.They try to determine whether it was created for temporary or permanent use.

2.They try to determine the audience for whom the record was meant.

3.They use scientific methods such as radiocarbon dating.

4.They make an assumption.

5.They compare it to other historical sources.

They use scientific methods such as radiocarbon dating.

They compare it to other historical sources.

Explanation:

They use scientific methods such as radiocarbon dating

They compare it to other historical sources

Explanation:

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the progressive era is a period of widespread social activism and political reform across the united states that spanned from the 1890s to the 1920s.[1] the main objectives of the progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and political corruption.

the movement primarily targeted political machines and their bosses. by taking down these corrupt representatives in office, a further means of direct democracy would be established. they also sought regulation of monopolies (trust busting) and corporations through antitrust laws, which were seen as a way to promote equal competition for the advantage of legitimate competitors.

many progressives supported prohibition of alcoholic beverages, ostensibly to destroy the political power of local bosses based in saloons, but others out of a religious motivation. at the same time, women's suffrage was promoted to bring a "purer" female vote into the arena.a third theme was building an efficiency movement in every sector that could identify old ways that needed modernizing, and bring to bear scientific, medical and engineering solutions; a key part of the efficiency movement was scientific management, or "taylorism".

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i think i will need more detail to answer if this is a specific question on a test, but technology advancements are good for many industries, such as medicine or food industries, new technology could us in medicine in ways such as new scanners to tell us more about our bodies or new cures or vaccines for diseases.