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Alex17521 [72]
3 years ago
13

Simplify the following expression : (2x + 7y) (x – 3y) – (9x + 4) (3x - 2)

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
8 0
-25x^2+xy-21y^2+6x+8
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Elliot has a total of 26 books. He has 12 more fiction books than nonfiction books. Let x represent the number of fiction books
AlladinOne [14]

<u>Answers</u>

19 fiction books

7 nonfiction books


<u>Explanation</u>

x + y = 26  ............................................. (i)

x – y = 12  ............................................ (ii)

Elliot added the two equations and the result was

2x = 38.

Dividing both sides by 2;

x = 19

There are 19 fiction books.

Substituting x in equation (i),

x + y = 26             when x = 19

19 + y = 26

y = 26 - 19

   = 7

There are 7 nonfiction books

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3 years ago
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2 years ago
7.4 Centimeters to kilometers
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Answer:

.00074 km

Step-by-step explanation:

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Suppose that F(x)=x3 and G(x)=-5x3+2 which statement best compares the graph of g(x) with the graph of F(x)
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The graph of G(x) is the graph of F(x) stretched vertically, flipped over the x-axis, and shifted 2 units up

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