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kolbaska11 [484]
3 years ago
13

Simplify the following expression. 2x + 3x3 - 5x2 + x2 +7x + 1+ 7x -3x3 - 4

Mathematics
2 answers:
denis-greek [22]3 years ago
8 0

-4x^2+16x-3 is your answer

jek_recluse [69]3 years ago
4 0

Answer:

-4x^2 +16x -3

Step-by-step explanation:

2x + 3x^3 - 5x^2 + x^2 +7x + 1+ 7x -3x^3 - 4

Line up the numbers in decreasing power

3x^3 -3x^3 - 5x^2  + x^2 +7x +2x+ 7x - 4+1

Combine like terms

-4x^2 +16x -3

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What is the circumference of a circle with an area of 49pi?
diamong [38]

<em>C</em>≈24.81<em>A</em>=<em>πr</em>2

<em>C</em>=2<em>πr</em>

Solving for<em>C</em>

<em>C</em>=2<em>πA</em>

=2·<em>π</em>·49

≈24.81435

3 0
3 years ago
Why was Russia slow to modernize?
andriy [413]

Answer:

Russian modernization was slow to take place because the concepts of modernization conflicted with the autocratic power structure itself and amplified social conflicts in the country.

Explanation:

Alexander II, amid internal problems, sought to modernize the country and expand its domains in Asia. to this end, he abolished servitude and instituted wage labor on a large scale. Alexander II even established councils, the Ziemstvos, responsible for political participation in Russian lands, but still under the tutelage of the Tsar. Newspapers and magazines were created and, apparently, Russia was moving towards political modernization.

However, ethnic minorities organized themselves and demanded autonomy or political apparatus of representation within the Empire, which affected the autocratic power of the tsar. Alexander II responded to these movements with the force of arms, and massacres were perpetrated by his order. As it was understood that the modernization of the country threatened the autocracy of the current government, the Tsar decided to delay the modernization of the country.

Step-by-step explanation:

Hope this helps.

Have a good night ma´ám/sir.

Be safe!

8 0
3 years ago
What is the square root of -1
patriot [66]

Answer:

i

Step-by-step explanation:

This is the answer you get when you square and you get a negative number.

6 0
3 years ago
PLEASE HELP, EXPLAIN HOW YOU GOT YOUR ANSWER AFTER PLEASE .
Veseljchak [2.6K]

Answer:

208

Step-by-step explanation:

8 0
3 years ago
3 x (-2.5) = x pls I need help
nlexa [21]
Answer: x = -7.5

Solution:
3 x (-25) = x
Calculate

-7.5 = x
Swap the sides

x = -7.5
5 0
3 years ago
Read 2 more answers
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