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Ymorist [56]
3 years ago
6

Can someone help me simplify this?

Mathematics
1 answer:
worty [1.4K]3 years ago
7 0
The answer is D !! 12x !!
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G is the centroid of triangle ABC.
AleksAgata [21]

Answer:

  • x = 37
  • DG = 22
  • AG = 44
  • AD = 66

Step-by-step explanation:

We presume your "centroid ratio theorem" tells you that AG = 2·DG, so ...

  (x+7) = 2(x -15)

  x + 7 = 2x - 30 . . . . eliminate parentheses

  37 = x  . . . . . . . . . . .add 30-x

Then AG = 37+7 = 44

and DG = 37-15 = 22.

Of course, AD = AG +GD = 44 +22 = 66

7 0
3 years ago
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9 - 10x = 2x + 1 - 8x
Furkat [3]

Answer:

x=2

Step-by-step explanation:

9 - 10x = 2x + 1 - 8x

9-10x=-6x+1

Subtract 9 from both sides:

9-10x-9=-6x+1-9

-10x=-6x-8

Add 6x to both sides:

-10x+6x=-6x-8+6x

-4x=-8

Divide both sides by -4:

\frac{-4x}{-4}=\frac{-8}{-4}

x=2

8 0
3 years ago
Read 2 more answers
17. Test Practice which represents the number that is ten more than two
AleksAgata [21]

Answer:

2,080

Step-by-step explanation:

Two thousand and seventy is written as 2,070.

Ten more than 2,070 would be 2,080 as you're just adding on 10.

Hope this helps :)

7 0
3 years ago
An art class is making a mural for their school which has a triangle drawn in the middle. The length of the bottom of the triang
Fed [463]

Answer:

나는 모른다

Step-by-step explanation:

4 0
3 years ago
Find the area of a triangle whose two sides are 18cm and 10cm and the perimeter is 42cm
kobusy [5.1K]

Ur answer will be - A≈69.65cm².  

<u><em>Hope this helps!!</em></u>

5 0
3 years ago
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