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Black_prince [1.1K]
1 year ago
14

(2x+1)(x-2)(x+3) please help

Mathematics
1 answer:
lions [1.4K]1 year ago
3 0

Answer: 2x^3 + 3x^2 - 11x - 6

Step-by-step explanation: simplified

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A newspaper reports the following changes in the temperature of a city over 4 days:
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Answer:

  a) (2.64 -2/9 -0.35 +5/8)/4

  b) perform the sum, then the division, then round as needed

Step-by-step explanation:

a) The average of a number of items is their sum, divided by the number of items. Here, we want the average of 4 changes, so we compute it as the sum of the changes divided by 4.

  average change = (2.64 -2/9 -0.35 +5/8)/4

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b) My calculator is capable of adding these numbers directly. For a result rounded to the nearest hundredth, it can be a good idea to represent the fractions using at least 3 decimal digits.

So, the steps would be ...

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  • add up the values
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  • round to hundredths

Performing these steps, we get ...

  average change = (2.64 -0.222 -0.35 +0.625)/4 = 2.693/4

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The average daily temperature change of a city was 0.67 degrees.

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3 years ago
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Step-by-step explanation:

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