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bija089 [108]
2 years ago
7

What is two ways to rewrite 21x^2 -42x +14 in equvalent form? i really need help here lol-​

Mathematics
1 answer:
kozerog [31]2 years ago
5 0

Answer:

7(3x^2-6x+2)

Step-by-step explanation:

21, 42, 14 they can be divided by 7 so we put 7 out

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What is the volume help needed ASAP will give BRAINLIEST
kotegsom [21]

Answer:

200+64=264

Step-by-step explanation

You mulitply the 2 figures i.e 8x5x5 and 8x8x1 to find the volume of each shape then simply add and you get 264.

7 0
3 years ago
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In the polynomial below, what number should replace the question mark to produce a difference of squares? X^2 + ?x -49 A. 0 B. 1
Mrac [35]

Answer:

A

Step-by-step explanation:

The difference of squares formula is a² - b² = (a + b)(a - b). We want this polynomial to be in the form a² - b². We notice that x² and 49 are perfect squares already which means that we don't need the x term. To get rid of it, its coefficient must be 0 because 0 times anything is 0, thus the x term will be removed and we'll be left with x² - 49 which is a difference of squares.

5 0
3 years ago
Suppose that the cost of a paving stone is $2.50 plus $.18 for every 4 in.³ of concrete how much would each paving stone cost ?
Dmitrij [34]
We need to know the dimension of the paving stone.

For example, the paving stone is shaped like a rectangular prism with the following dimension.

Length = 10 inches
Width = 3 inches
Height = 2 inches

Volume of a rectangular prism = Length * Width * Height
V = 10 in * 3 in * 2 in
V = 60 in³

60 in³ / 4 in³ = 15

cost of paving stone = 2.50 + .18(15) = 2.50 + 2.7 = 5.20 per paving stone.
3 0
3 years ago
Can someone help w this ASAPP!!! Whoever answers correct and quickest ill give brainiest!
butalik [34]

Answer:

8x+8

Step-by-step explanation:

x+4+3x+x+4+3x

8x+8

hope it helps :)

3 0
3 years ago
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which expression can be used to determine the slope of the line that passes though the points (-7, 3) and (1, -9)?
Zolol [24]

Answer:

-3/3    x -15/2

Step-by-step explanation:

hope this helps

5 0
3 years ago
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