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galben [10]
3 years ago
7

Which polynomial is twice the sum of 4x^2 – 1 + 1 and - 6x^2+ x - 4?

Mathematics
1 answer:
kap26 [50]3 years ago
8 0

Answer:

3

Step-by-step explanation:

The sum of these two polynomials is  - 2 x^2  - 3. the two x variables are additive inverses and  -6 x^2 and  4 x^2  equal  - 2 x^2 and  -3 results from  -4 and 1

Multiplying the sum by 2 gives us - 4 x^2 - 6 . Answer 3

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1 year ago
At Billy's school, 80 students come to school by bicycle or by car. Together, the vehicles they arrive to school in have 270 whe
Anna35 [415]

Answer:

x = number of bicycles = 35

y = number of cars = 55

Step-by-step explanation:

Let

x = number of bicycles

y = number of cars

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x = 80 - y

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y = 110/2

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3 years ago
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