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Mekhanik [1.2K]
1 year ago
9

Find the sum of these polynomials.

Mathematics
2 answers:
Crank1 year ago
8 0

Answer:

C. 10x²-x+13

Step-by-step explanation:

1. Add the numbers

x^2 - x + 7 + 9x^2 + 6

x^2 - x + 13 + 9x^2

2. Combine like terms

x^2 - x + 13 + 9x^2

10x^2 - x + 13

Genrish500 [490]1 year ago
7 0

Answer:

C

Step-by-step explanation:

add the two x^2 parts    =  10 x^2

 so answer is B or C

  add the constants   7 + 6 = 13     so answer C

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Answer: -17.5

Step-by-step explanation:Use this rule:

1. -a-b=-(a+b)−a−b=−(a+b).

-(12.5+4.8)−(12.5+4.8)

2.Use the algorithm method.

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4. Therefore, -12.5-4.8=-17.3−12.5−4.8=−17.3.

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Step-by-step explanation:

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3 years ago
What is the value of 5.4?
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The value is .54 hope this helped
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