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joja [24]
3 years ago
6

How did inventions such as light bulb and the telegraph change daily life in the late 1800s

History
1 answer:
ZanzabumX [31]3 years ago
3 0
They extended usable hours of the day
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Need help with question 3 just want to ensure my answer is correct before continuing
Blababa [14]

B. -3

The value of a for given polynomial is -3

<h3>Explanation:</h3>

<em>Factor theorem for polynomials,</em>

<u><em>If (x-c) is a factor of polynomial f(x), then f(c)=0</em></u>

Given: x+a is a factor of polynomial 4x^3-13x^2-ax

Let f(x) = 4x^3-13x^2-ax

By Factor theorem, since x+a is a factor of f(x),

(x+a)=[x-(-a)]\\So,\ f(-a)=0

Substituting x=-a in f(x)=0, we get

f(x) = 4x^3-13x^2-ax = 0\\f(-a)= [4(-a)^3]-[13(-a)^2]-[a(-a)] = 0\\(-4a^3-13a^2+a^2)=0\\(-4a^3-12a^2)=0\\-4a^3=12a^2\\\frac{a^3}{a^2} =\frac{12}{-4} \\\\a=(-3)

Therefore, value of a is (-3)

8 0
2 years ago
Which was an outcome of the war for North Korea?
wel

Answer:

c

Explanation:

the military got stronger and that's it.

3 0
3 years ago
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What role did the United States have during the Korean war
morpeh [17]

The United States came to the aid of South Korea at the head of a United Nations force composed of more than a dozen countries. Communist China joined North Korea in the war in November 1950, unleashing a massive Chinese ground attack against American forces. The Soviet Union also covertly supported North Korea.

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3 years ago
Most of the surviving Chavín buildings served which of the following purposes? A.Government centers B.Places of worship C.Tradin
WARRIOR [948]
Places of worship. >APEX
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3 years ago
According to this map , within which country did the renaissance originate
Katyanochek1 [597]
Please attach a map in order for us to do this. Just take a screenshot or clipping of your screen and attach it to your post with the paperclip icon.
5 0
2 years ago
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