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3 years ago

The product of 5 and twice a number

Mathematics

2 answers:

solong [7]3 years ago

8 0

5(2n)
=10(2)
is the answer

Stells [14]3 years ago

4 0

Product means multiply so:

5(2n)
=10n

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3 years ago

Write the equation of a line that is perpendicular to the given line and that passes through the given point.

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Answer:

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Step-by-step explanation:

5 = −1½[−6] + b

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3 years ago

Let a, b, and c be positive integers that form a geometric sequence. Given that a has 3 factors and c has 9 factors, how many fa

just olya [345]

Answer:

Step-by-step explanation:

it’s clear that a ,b and c are in geometric progression.

Then we have :

b = q×a

c = q²×a

also , b² = a×c

………………………

NOTE : b² and b have the same factors

also ,since b² = a×c then b and a×c

have the same number of factors.

_______________________________

Since c = q²×a then any factor of a is also a factor of c

Which means the number of factors of a×c

is equal to the number of factors of c.

Therefore b at most has the same number of factors as c.

Conclusion:

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……………………

As a side note :

You can take as example the numbers 3 , 30 , 300.

3 ——-> 1 factor

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300 = 3 × 5² × 2² ——-> 3 factors

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2 years ago