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olga_2 [115]
2 years ago
9

What are Alexander Graham Bell achievements and what was his impact on history?

Social Studies
1 answer:
trapecia [35]2 years ago
5 0

Alexander Graham Bell's greatest accomplishments were the invention of the telephone (1876) and the refinement of the phonograph (1886). Bell revolutionized communication as we know it and paved the way for more inventors to improve communication as we know it now.

hope that helped :)

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answer for brainleist Transportation in the Nineteenth Century Roads, rivers, and railroads connected different regions of the U
Oduvanchick [21]

Answer:

Roads, Canals, and Rails in the 1800s. Waterways and a growing network of railroads linked the frontier with the eastern cities. Produce moved on small boats along canals and rivers from the farms to the ports. Large steamships carried goods and people from port to port.

Explanation:

It may be wrong but i did my best :)

4 0
3 years ago
22. Awful accidents (a) State hypotheses for a significance test to determine whether first responders are arriving within 8 min
sergeinik [125]

Answer:

a) H0: Time for first responders arrival is  ≥ 8 min,  Ha: Time for first responders arrival is  < 8 min

b) Type I error: the arrival time is not greater than or equal to 8min

   Type II error: the arrival time is greater than or equal to 8min

c) Type I error

Explanation:

a) the parameter of interest is the time of arrival of first responders. The hypothesis will test the time of arrival of first responders. The null hypothesis will be that it is greater than or equal to 8 min and alternate hypothesis will be that it is less than 8 min

b) Type I error: rejection of true null hypothesis

   type II error: non-rejection of true null hypothesis

c)  Serious setting would be in type I error as it would cause more damage

7 0
3 years ago
I NEED HELP WITH A TITLE OF MY ESSAY PLS!! The theme for our essay is “A time for a social change” and my essay is about social
Leno4ka [110]

Answer:

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3 0
3 years ago
People, listen to me in earnest, worship Allah, say your five daily prayers (Salah), fast during the month of Ramadan, and give
Luden [163]

Answer:

C

Explanation:

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4 0
2 years ago
Awareness space indicates that which crime is rational?
Bogdan [553]
"Awareness space" indicates that ROBBERY is rational.



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5 0
3 years ago
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