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vladimir2022 [97]
3 years ago
13

Identify the factoring pattern: y 2 −16=(y+4)(y−4) y2-16=(y+4)(y-4)

Mathematics
2 answers:
liubo4ka [24]3 years ago
7 0

This is a difference of squares. Every time you have the difference between two squares, you can factor it as the product between the sum and the difference of the roots:

a^2-b^2 = (a+b)(a-b)

In your case, the squares are

y^2 \to \text{the square of } y

16 \to \text{the square of } 4

So, the difference between the squares, y^2-16 can be written as the multiplication between the sum and difference of the roots:

y^2-16=(y+4)(y-4)

Troyanec [42]3 years ago
5 0

I think it is the sum of cubes because if you add them, they become cubes.

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Rounded to hundred how can I round to hundred
Gwar [14]
If you are talking about any number then.....
imagine a mountain, any number less than 5 is only the left and any number greater than 5 is on the right
      
Here, for example, let's try 13 

look at 13 on the pyramid .... since it's not a the top of the mountain so it falls back down to 10... it rounds down to 10
Now let's try 18 ...hmmm.... 18 is not at the top either so it falls as well. It falls down to 20 it rounds up to 20 

how about 15 u might be asking...it is at the top...15 is a little different ...make sure no one is looking and push it off the right side and falls to 20. Also rounding up to 20

              5
           4    6 
        3          7 
     2                8 
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7 0
3 years ago
C+2c+12=75 find the value of c
tamaranim1 [39]

Answer:

c+2c+12=75

c = 21

Steps:

c+2c+12=75

Simplify both sides of the equation.

c+2c+12=75

(c+2c)+(12)=75(Combine Like Terms)

3c+12=75

3c+12=75

Subtract 12 from both sides.

3c+12−12=75−12

3c=63

Divide both sides by 3.

3 0
3 years ago
6. Use synthetic substitution to evaluate the polynomial P(x) = x - 4x² + 4x – 5 for x = 4
Tatiana [17]

Answer:

When x=4

P(x) =4 - 4(4)^2 + 4(4) -5

=4 - 4(16) + 16 -5

=4 - 64 +11

= -60 + 11

= -49

8 0
3 years ago
7,243 ÷ 4.<br><br> What is the remainder?
Sveta_85 [38]
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4 0
3 years ago
801,504 round to the nearest thousand​
Gelneren [198K]

Answer:

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Step-by-step explanation:

The number in the thousands place is 1, and the number to the right of it is 5. And if the number to the right is greater than or equal to 5 the place value that you are rounding goes up by one.

3 0
3 years ago
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