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seropon [69]
3 years ago
13

What's equivalent to 2.5(4.2+7.4y)-3.6(8x-4.5y)-(2.4x+6y)

Mathematics
1 answer:
irina1246 [14]3 years ago
5 0

Answer:

-31.2x + 28.7y + 10.5

Step-by-step explanation:

Step 1: Write expression

2.5(4.2 + 7.4y) - 3.6(8x - 4.5y) - (2.4x + 6y)

Step 2: Distribute

10.5 + 18.5y - 28.8x + 16.2y - 2.4x - 6y

Step 3: Combine like terms

-31.2x + 28.7y + 10.5

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For a polynomial p(x), if p(a) = 0, then which of the following must be a factor of p(x)?
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x _ a

Step-by-step explanation:

because if a is zero .then they should be subtraction

5 0
3 years ago
Why is 3/8 bigger than 3/12​
Stolb23 [73]

Answer:

3/ 8  is greater than  3/ 12 because if you cross multiply 12 times 3 is 36 and 3 times 8 is 24

Step-by-step explanation:

4 0
3 years ago
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What are all the fractions are equivalent to 4/12
GarryVolchara [31]
The answers are 1/3, 2/6, 3/9, 4/12
5 0
3 years ago
SHOW YOUR WORK! Marking the best response with brainliest:) thank u
sdas [7]

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

l is the length

w is the width

From the question

The length is 3x + 7

The width is 2x + 2

The perimeter is

<h3>2( 3x + 7) + 2( 2x + 2)</h3>

Simplify

6x + 7 + 4x + 4

Group like terms

6x + 4x + 7 + 4

We have the final answer as

<h3>10x + 11</h3>

Hope this helps you

6 0
3 years ago
Given: x + 2y = -6.
wel

very positive about these results

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