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AnnZ [28]
2 years ago
11

I NEED HELP FASTTT D:

Mathematics
1 answer:
Doss [256]2 years ago
4 0

Answer:

12x + 15 = 12x - 15

Step-by-step explanation:

-5x - 25 = 5x + 25

-25 = 10x + 25

-50 = 10x

-5 = x

12x + 15 = 12x - 15

15 = -15  ( No solution )

12x + 15 = 3(4x + 5)

12x + 15 = 12x + 15

12x = 12x

0 = 0  ( True for all x's )

7x + 21 = 21

7x = 0

x = 0

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3 years ago
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1. what’s the distance between (-8, -6) and (4, 10)?
charle [14.2K]

Use the formula of a distance between two points:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

(-8,\ -6),\ (4,\ 10)\\\\d=\sqrt{(4-(-8))^2+(10-(-6))^2}=\sqrt{12^2+16^2}\\\\=\sqrt{144+256}=\sqrt{400}=\boxed{20}\\\\(5,\ 14),\ (-3,\ -9)\\\\d=\sqrt{(-3-5)^2+(-9-14)^2}=\sqrt{(-8)^2+(-23)^2}\\\\=\sqrt{64+529}=\boxed{\sqrt{593}\approx24.35}

7 0
3 years ago
Each square below represents one whole.<br> What percent is represented by the shaded area?<br> %
Fynjy0 [20]

Answer: 76%

Step-by-step explanation:

each sq represents whole 5*5 = 25 for the second = 25 , but - the shaded area to find the unshaded are 25 - 13 = 12 unshaded square

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4 0
3 years ago
Please help me!<br><br> Decrease £40 by 10%
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Answer:

36

Step-by-step explanation:

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6 0
2 years ago
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