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8090 [49]
3 years ago
11

Help needed.......................

Mathematics
2 answers:
VladimirAG [237]3 years ago
8 0
C is the answer ... all u has to do was subtract 5 from 12 , then -11-14 , then -13-9
zhenek [66]3 years ago
7 0

Answer: 7x^2+3y^2-4x

Choose the first option

Step-by-step explanation:

Ok, so let me show you how to do this.

First, distrubute the negative sign

12x^2-11y^2-13x-(5x^2-14y^2-9x)=

12x^2-11y^2-13x-5x^2+14y^2+9x

Now combine like terms

(12x^2-5x^2)=7x^2

(-11y^2+14y^2)=3y^2

(-13x+9x)=-4x

7x^2+3y^2-4x is the answer.

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Answer with steps!... Thanks
NNADVOKAT [17]

Answer:

A)  False

B)  True

Step-by-step explanation:

For A) First let's do x/11 = 15. If you solved it by now, you will know that the answer is 0.7333333. So now you just do 11x15. Because the answer is different then the answer we got when doing the division, the answer for A is false

For B) B is definitely true because equation are any mathematical sentences that have an equation symbol. So it's like saying 8x3=24 and 6x4=24. These two equations end up with the same answer so B is true.

I hope this helped you find out the rest :)

5 0
3 years ago
A baker used 2/3 cup of milk and 4/5 cups of water for each recipe. How many liquid in all did the baker use?
egoroff_w [7]

Answer:

1.46666666667

Step-by-step explanation:

calculator

7 0
3 years ago
A gym in your neighborhood has two payment options.
KatRina [158]
I think it’s 4

0+8x=23+2x
6x=23
x=3,8333
7 0
3 years ago
What is the value of x?
Serjik [45]

Answer:

  x = 32

Step-by-step explanation:

Each angle of the equilateral triangle is 60°.

  (2x -4)° = 60°

  x -2 = 30 . . . . . . divide by 2°

  x = 32

__

  5y° = 60°

  y = 12 . . . . . . . . . divide by 5°

7 0
3 years ago
A rectangle has a perimeter of 52 cm and an area of 144 square cm. Find its length and width if they are in whole numbers.
Bingel [31]
8 and 18:
8+8+18+18= 52
8*18 = 144

Tada!
6 0
3 years ago
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