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9966 [12]
2 years ago
15

An attribute that must be present for every entity (or relationship) instance is a(n):______.

Social Studies
1 answer:
mina [271]2 years ago
6 0

An attribute that must be present for every entity (or relationship) instance is a required attribute.

Entities are represented through their properties, which are referred to as attributes. Every attribute has a value.

The required attribute is a bool attribute.

When present, it indicates that the element must be completed before the form can be submitted.

The Required Attribute attribute is used to override the database schema rule that enables a data field to be empty. 

Implements a metadata partial class and its corresponding metadata class.

It uses the Required Attribute element in the related metadata class to specify the following requirements:

The Title data field cannot be left blank.

The Middle Name cannot be left blank.

To learn more about HTML click here:

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List three policies that helped sustain economic prosperity in the U.S. after WWI?
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Three policies that helped to sustain economic prosperity in the USA after WWI were: 1) increased taxation, 2) becoming a creditor to other nations, and 3) mobilizing federal agencies to help provide the infrastructure for industries that produced munitions and supplies for the war effort.

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Increased taxation: The US government used a combination of raising taxes and selling Liberty Bonds in order to finance the war effort. Tax rates remained higher than they were before the war because there were expenditures like paying interest on the Liberty Bonds and providing benefits for those who had served in the war. To sell the bonds the government arranged big rallies and enlisted famous personalities like Charlie Chaplin to help sell the bonds.

Becoming a creditor to other nations: Before WWI began, London was the center of the world economy as all the major capital markets did their business there. The Bank of England was the most important institution in the financial world at that time. After WWI that financial power shifted to New York City, and the American Federal Reserve grew as a result as well. US foreign investments almost doubled from 5 billion to 9.7 billion after the war (Rockoff, 2008).

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