0.423 rational or irrational

Mathematics

2 answers:

alexgriva [62]2 years ago

7 0

It would b rational...hope this helps

-BARSIC- [3]2 years ago

4 0

Rational because<span>A rational number is one that can be written as a fraction, with whole numbers in the numerator and the denominator. </span>

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(f/g)(x)and (f/g)(7)

Phoenix [80]

Answer:

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Step-by-step explanation:

Division operation of function: $If\ f(x)\ and\ g(x)\ are\ two\ functions\ then\ (\frac{f}{g})(x)=\frac{f(x)}{g(x)}$

$Here\ we\ have\ to\ find\ (\frac{f}{g})(7)\\\\(\frac{f}{g})(7)=\frac{f(7)}{g(7)}$

Example:

$Take\ f(x)=3x^2+1,\ g(x)=x+1\\\\(\frac{f}{g})(x)=\frac{f(x)}{g(x)}\\\\(\frac{f}{g})(x)=\frac{3x^2+1}{x+1}\\\\f(7)=3\times 7^2+1\\\\f(7)=3\times 49+1\\\\f(7)=148\\\\g(7)=7+1\\\\g(7)=8\\\\(\frac{f}{g})(7)=\frac{f(7)}{g(7)}\\\\(\frac{f}{g})(x)=\frac{148}{8}$

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Answer:

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Step-by-step explanation: