<span>Between 1959 and 2012, the percentage of elderly Americans living in poverty went from about 35 percent to about 10 percent.
There can be multiple reasons for that, one can be the social security program which ensures some basics for the elderly people, also the awareness and sympathy rose in between the years quoted and helped decrease the percentage. </span>
Answer: D
Explanation: hunter gatherers used ⚒ tools to build wagons 4 travel
Experiments in which conditions are deliberately altered and all other variables are held constant are known as <u>Manipulative</u> experiments.
Manipulation checks are measured variables that reveal the concurrent effects of the manipulated variables on other variables outside the targeted dependent variable.
During studies, a process or task is altered in some way, and volunteers are assigned at random to various degrees of the manipulation. The experimenter then checks to see if changes in the controlled factors affect the dependent variable differently.
Manipulation checks focus on variables other than the important dependent variable.
The purpose of manipulations is not to confirm that the manipulated component was the source of the variance in the dependent variable. This is confirmed through random assignment, manipulation before the dependent variable is measured, and statistical assessments of the manipulated variable's impact on the dependent variable.
Consequently, a failed manipulation check does not disprove the idea that the manipulation was to blame.
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The answer would be true
Explanation: In manhattan city builers were short on land and figured they could build up instead of using more land and building wide horizontally.
Answer:
The Elastic Clause
Explanation:
The Necessary and Proper Clause is often called the Elastic Clause because it caused the powers of Congress to snap. Congress can appropriate money to different deparments of the Federal Government. McCulloch v. Maryland gave strength to implied powers and elevated the Federal Government over the States.
