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jek_recluse [69]
3 years ago
11

WILL GIVE BRAINLIEST!!

Mathematics
2 answers:
Andrews [41]3 years ago
5 0
Bet...but you really need to learn how to to this bc you use this in all types of math
All you have to do is distribute then combine like terms
Zoom in

yawa3891 [41]3 years ago
3 0

Answer:

1.x²+4x-16

2.x²-6x-72

3.x²+13x+36

4.x²+8x+12

5.x²+15x+54

6.x²+5x-20

7.x²-9

8.x²+20x+100

9.x²+9x-36

10.x²+x-12

11.x²+7x+10

12.x²-7x+12

13.x²-64

14.x²-3x-18

15.x²-4x-5

Step-by-step explanation:

1.(x - 2)(x + 8)

= x(x + 8)-2(x + 8)

= x²+8x-2x-16

=x²+4x-16

2.(x + 6)(x - 12)

=x(x -12)+6(x -12)

=x²-12x+6x-72

=x²-6x-72

3.(x + 9)(x + 4)

=x(x + 4)+9(x + 4)

=x²+4x+9x+36

=x²+13x+36  

4. (x + 6)(x + 2)

=x(x + 2)+6(x + 2)

=x²+2x+6x+12

=x²+8x+12

5. (x + 6)(x + 9)

=x(x + 9)+6(x + 9)

=x²+9x+6x+54

=x²+15x+54

6. (x - 4)(x+ 5)

=x(x + 5)-4(x + 5)

=x²+5x-4x-20

=x²+5x-20

7. (x + 3)(x - 3)

=x(x - 3)+3(x -3)

=x²-3x+3x-9    

=x²-9

8. (x + 10)(x + 10)

=x(x + 10)+10(x + 10)

=x²+10x+10x+100

=x²+20x-100

9. (x - 3)(x + 12)

=x(x + 12)-3(x + 12)

=x²+12x-3x-36

=x²+9x-36

10. (x + 4)(x - 3)

=x(x - 3)+4(x - 3)

=x²-3x+4x-12

=x²+x-12

11. (x + 5)(x + 2)

=x(x + 2)+5(x + 2)

=x²+2x+5x+10

=x²+7x+10

12. (x - 3)(x - 4)

=x(x -4)-3(x -4)

=x²-4x-3x+12

=x²-7x+12  

13. (x + 8)(x - 8)

=x(x - 8)+8(x - 8)

=x²-8x+8x-64

=x²-64

14. (x -6)(x+3)

=x(x + 3)-6(x + 3)  

=x²+3x-6x-18

=x²-3x-18

15. (x + 1)(x - 5)

=x(x - 5)+1(x - 5)

=x²-5x+x-5

=x²-4x-5

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

Stem     Leaf

______________

0        |  4  8

1         |  0  5

2        |  5

3        |  3  6  6

4        |  0  0  9

5        |  0  

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Step-by-step explanation:

Data given:

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For this case the first step is order the dataset on increasing way and we got:

4  8 10 15 25 33 36 36 40 40 49 50 63 64 66

Now we can construct the stem leaf plot like this:

Stem     Leaf

______________

0        |  4  8

1         |  0  5

2        |  5

3        |  3  6  6

4        |  0  0  9

5        |  0  

6        |  3  4  6

______________

Notation : 0|4 means 04 or 4 , 4|9 means 49/

For this case we can conclude that the distribution is approximately symmetrical.

For the 5 number summary we have

Minimum = 4 , Q1= 20 , Median =36, Q3= 49.5 , Maximum = 66

The mean for this case is Mean= 35.93

And as we can see since the mean is similar to the the median

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