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8_murik_8 [283]
4 years ago
11

Equation please ? on how to do this

Mathematics
1 answer:
Vikki [24]4 years ago
8 0
This answer should be -1/4x + -6
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What is the sum of the polynomials? (8x2-9y2-4x)+(x2-3y2-7x)
White raven [17]
The sum of the polynomials (8x²-9y²-4x)+(x²-3y²<span>-7x) is:

 1. You must add the terms whose variables and exponents are the same. 
 2. Let's rewrite the polynomials:
</span>
 (8x²-9y²-4x)+(x²-3y²-7x)
 8x²-9y²-4x+x²-3y²-7x
 (8+1)x²+(-4-7)x+(-9-3)y²

 3. Therefore, the result is:

 9x²-11x-12y²

 3. <span>What is the sum of the polynomials?

 The answer is: </span>9x²-11x-12y²
3 0
3 years ago
Plz help with 13 use the Pythagorean theorem
tia_tia [17]
Pythagorean Theorem:
a^2 + b^2 = c^2

26^2 + 18^2 = c^2
676 + 324 = c^2
1,000 = c^2
ratio
31.6 = c
3 0
3 years ago
2x-5x+9x<br> combinar terminos semejantes
harkovskaia [24]

Answer:

6x

Step-by-step explanation:

2x-5x=-3x+9x=6x

espero que esto ayude por favor marque el más inteligente

4 0
4 years ago
Read 2 more answers
21 = -4x - 7<br> What is the answer
Serjik [45]

Answer:

- 7

Step-by-step explanation:

21 = - 4x - 7

- 4x - 7 = 21

- 4x = 21 + 7

- 4x = 28

x = 28 / - 4

x = - 7

6 0
3 years ago
Need help understanding how to find the answer to problem
Dvinal [7]

Answer:

3.Tan(45)=n/2

1=n/2

n=2

Cos(45)=2/m

1/√2=2/m

m=2√2

5.Sin(60)=x/14

√3/2=x/14

14√3/2=x

x=7√3

Cos(60)=y/14

1/2=y/14

y=7

6 0
2 years ago
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