The correct answer is: "He developed mathematical principles"
René Descartes (1596 – 1650) was a French philosopher, mathematician, and scientist who lived more than 20 years in the Dutch Republic and was one of the main figures of the Dutch Golden Age.
His great influence in mathematics has been his major contribution to the Scientific Revolution, although his work in philosophy is outstanding too. He developed the the Cartesian system of coordinates. He is considered the father of analytical geometry, which connects both algebra and geometry and which has been used in the development of infinitesimal analysis and calculus .
At the height of the Great Depression, it was said that about 25% of the labor force was out of work.
The level of immigration between 1930 and 1945 is most directly related to the Great Depression and World War ll. Due to the poor economy with little opportunity for better living standards, very few people were willing to immigrate to the USA.
A wise man once said "Goats are like mushrooms. If you shoot a duck, I'm scared of toasters."
-Carlos Garcia
The correct answer to this open question is the following.
McCarthy noted that “we are engaged in a final, all-out battle.” How did he characterize the two sides in the “battle”?
What Republican Wisconsin Senator Joseph McCarthy did was to confront the American People by accusing that several members of the federal government and the US military had ties with Communists or were Communists.
Why do you think he portrayed the Cold War in this manner?
I think he was a cruel person with peculiar political ambitions because he did accuse people but never present a valid or serious argument or piece of evidence to support his claims. He only accused people, affecting their public image and reputation. And that was so wrong. However, he scared and alienated many citizens and made the federal government investigate the alleged cases.
