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Volgvan
3 years ago
5

Add :-a+2b-3c, -3a+b+2cand 2a -3b+c​

Mathematics
1 answer:
fgiga [73]3 years ago
8 0

Answer:

a + 2b -3 c +  - 3a + b + 2c + 2a - 3b + c \\  = a - 3a + 2a + 2b + b - 3b - 3c + 2c + c \\ 0a + 0b + 0c \\ thank \: you

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Some math help please?
Crank

Answer:

∠ LMP = 77° , ∠ NMP = 103°

Step-by-step explanation:

The 2 angles on the straight line sum to 180° , that is

∠ LMP + ∠ NMP = 180 , substitute values

- 16x + 13 - 20x + 23 = 180 , that is

- 36x + 36 = 180 ( subtract 36 from both sides )

- 36x = 144 ( divide both sides by - 36 )

x = - 4

Then

∠ LMP = - 16x + 13 = - 16(- 4) + 13 = 64 + 13 = 77°

∠ NMP = - 20x + 23 = - 20(- 4) + 23 = 80 + 23 = 103°

8 0
3 years ago
I'm not sure how to do this
loris [4]
If u r nt sure then u have to take someone's help....other can only solve ur problem if u will tell what thing that u r nt sure how to do......
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4 years ago
Geometry The sides of a yield sign all have the same
Ymorist [56]

Answer:

75 cm

Step-by-step explanation:

Given:

Perimeter of the triangular yield sign = 225 cm

Side lengths = x, x and x

Required:

Length of each side

SOLUTION:

Perimeter of the triangular yield sign = sum of all sides of the triangular yield sign

225 cm = x + x + x

Solve for x

225 = 3x

Divide both sides by 3

225/3 = 3x/3

75 = x

x = 75

The length big each side is 75 cm

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3 years ago
Question 1 of 25
serg [7]

Answer: wooo

Step-by-step explanation:m

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3 years ago
The sales tax is ​$45 on the purchase of a dining room set for ​$1125. Find the sales tax rate. 15 pts!
deff fn [24]

Answer:

4% is the rate

Step-by-step explanation:

As a understand you refer to rate as percentage.

1). 45/1125 = 0.04 = 4% - is the percentage or rate.

Pls make my answer as brainliest

3 0
4 years ago
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