3 years ago

Hey!! plz answer this question correctly plz plz plz im on a very tight time crunch thanks besties

Mathematics

2 answers:

soldier1979 [14.2K]3 years ago

7 0

Answer:

b is the answer I choose because it is going in-5

pav-90 [236]3 years ago

3 0

Answer:

Step-by-step explanation:

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Which number produces an irrational number when multiplied by 1/3

MArishka [77]

We can simply observe that.

0.777... is rational, because it is a number with infinite but repeating decimal part.
1/3 is rational, because it's the division between two integers
$-\sqrt{16}=-4$ , so this is rational as well.

Since the product of two rational numbers is always rational, we have that

$0.\bar{7}\cdot \dfrac{1}{3},\quad \dfrac{1}{3}\cdot \dfrac{1}{3},\quad -4\cdot \dfrac{1}{3}$

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On the other hand, we have

$\sqrt{27}=\sqrt{9\cdot 3}=3\sqrt{3}$

and thus

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which is irrational.

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