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Llana [10]
3 years ago
7

The sum of twice a number and seven

Mathematics
1 answer:
sergejj [24]3 years ago
7 0

Answer:

2x+7

Step-by-step explanation:

The word sum indicates addition.

Twice a number is 2x

and 7 is plus 7

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Answer:

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Step-by-step explanation:

1)The square root of 3600 is 60. It is the positive solution of the equation x2 = 3600. The number 3600 is a perfect square.

2)The cube root of 343 is the number which when multiplied by itself three times gives the product as 343. Since 343 can be expressed as 7 × 7 × 7. Therefore, the cube root of 343 = ∛(7 × 7 × 7) = 7.

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Step-by-step explanation:

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