Answer:
I don't understand ur question only the first part.
Explanation:
At the beginning of the 20th century, the leading cause of death in the U.S. was infectious diseases.
<h3>What are infectious diseases?</h3>
Infectious diseases are any type of disease that can be transmitted by suitable hosts and vectors, which are caused by bacteria and viruses.
Infectious diseases are well known to produce epidemics and pandemics and vaccination helped to fight against them.
Infectious diseases were the main cause of death around the world (not only in the USA), but now we are able to fight against transmissible diseases by using the latest technological advancements.
In conclusion, at the beginning of the 20th century, the leading cause of death in the U.S. was infectious diseases.
Learn more about infectious diseases here:
brainly.com/question/14083398
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Answer:
lack of voluntary control over urination or defecation
Answer:
The expression for temperature is already in vertex form: T=a(d−d subscript 0)^2+T subscript 0. The vertex of this quadratic function occurs at (15,20).
Hi, was there supposed to be a picture? And if you still need help just contact me
