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Elan Coil [88]
3 years ago
7

If x/y

Mathematics
2 answers:
Natasha2012 [34]3 years ago
5 0

Answer: The answer is B.


Step-by-step explanation:

No; because x and y could have a common irrational factor.

IgorC [24]3 years ago
3 0
The answer is B.

Consider the fraction \frac{6 \sqrt{5} }{\sqrt{5}}.

Both the numerator and denominator, when by themselves, are irrational.

However, when they are divided, they result in the rational number \frac{6 \sqrt{5} }{\sqrt{5}}=\boxed{6}.

When p,q have the same irrational factor, the irrational factor will be cancelled from the fraction and (possibly) leave a rational number.


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9. If f(x) = 5x-4 and f(2a) =156 , then what is the value of a?
solmaris [256]

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f(x) = 5x - 4

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f(2a) = 5(2a) - 4

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Add sides 4

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Divide sides by 10

\frac{10a}{10}  =  \frac{160}{10}  \\

a = 16

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