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grigory [225]
4 years ago
9

(2x² + 3x + 2)-( x² - 4x - 1)

Mathematics
2 answers:
Scorpion4ik [409]4 years ago
7 0

Answer:69

Step-by-step explanation:

shtirl [24]4 years ago
3 0
Kdskksakskskskwkxjsnsjjakkwa
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How many positive integers less than 1000 a) are divisible by 7? b) are divisible by 7 but not by 11?
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  130

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The number of integers meeting the criteria can be found by counting them using a counting formula.

<h3>Divisible by 7</h3>

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There are 142 integers less than 1000 that are divisible by 7.

<h3>Divisible by 7 and 11</h3>

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There are 12 integers less than 1000 that are divisible by both 11 and 7.

<h3>Divisible by 7, not 11</h3>

The number of integers less than 1000 that are divisible by 7, but not 11, will be the difference of these numbers.

  142 -12 = 130 integers divisible by 7, but not 11.

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2 years ago
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