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snow_lady [41]
3 years ago
12

Which of the following statements about AB and AC is true?

Mathematics
1 answer:
Mumz [18]3 years ago
7 0

Answer: C

Step-by-step explanation:

Ap3x

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How does the suffix help you understand the meaning of announcement
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The suffix 'ment' belongs to nouns that denote an action. the word 'announce' means to declare or make something known. So the word 'announcement' is the action of declaring.
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PLEASE HELP! I REALLY NEED IT
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I can’t really help you I’m sorry I don’t really know the answer but I do need points thank you byeAdios
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Drag the tiles to the boxes to form correct pairs.
FrozenT [24]

Answer:

1 .4x2-9= 2x+3,2x-3

2 .16x2-1=4x-1,4x+1

3 .16x2-4=4(2x+1)(2x-1)

4 .4x2-1=(2x+1)(2x-1)

Step-by-step explanation:

16x² − 1  = (4x − 1)(4x + 1) ;  16x² − 4  = 4(2x + 1)(2x − 1); 4x² − 1  = (2x + 1)(2x − 1) ;

4x² − 9 = (2x + 3)(2x − 3)

16x² − 1  is the difference of squares.  This is because 16x² is a perfect square, as is 1.  To find the factors of the difference of squares, take the square root of each square; one factor will be the sum of these and the other will be the difference.

The square root of 16x² is 4x and the square root of 1 is 1; this gives us (4x-1)(4x+1).

16x² − 4 is also the difference of squares.  The difference of 16x² is 4x and the square root of 4 is 2; this gives us (4x-2)(4x+2).  However, we can also factor a 2 out of each of these binomials; this gives us

2(2x-1)(2)(2x+1) = 2(2)(2x-1)(2x+1) = 4(2x-1)(2x+1)

4x² − 1  is also the difference of squares.  The square root of 4x² is 2x and the square root of 1 is 1; this gives us (2x-1)(2x+1).

4x² − 9 is also the difference of squares.  The square root of 4x² is 2x and the square root of 9 is 3; this gives us (2x-3)(2x+3).

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3 years ago
Cost of an airplane flight increase from $250 to $260. What is the percentage increase?​
Sedaia [141]

Answer:

Solution given:

Increase percentage=\frac{260-250}{250}*100%

=4%

<u>the percentage </u><u>increase</u><u> </u><u>is</u><u> </u><u>4</u><u>%</u><u>.</u>

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The tables show the cost for different numbers of song downloads.
iren [92.7K]

Answer:

D

Step-by-step explanation:

its the right answer bc its proportional

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