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3 years ago

13

Which is a unit rate? A. 1/7 B. 48/4 C. 34/1 D. 40/5

2 answers:

Amanda [17]3 years ago

6 0

The answer is C. because for example it's blank per hour. like 25 miles per hour or 25mi/1hr

BartSMP [9]3 years ago

4 0

So,

Normally a unit rate will be x per 1y. Example: 60 miles/1hr.

Therefore, the option with the denominator as 1 would be the unit rate.

The correct option is C.

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Kryger [21]

Given: $f(x) = \frac{1}{x-2}$

$g(x) = \frac{2x+1}{x}$

A.)Consider

$f(g(x))= f(\frac{2x+1}{x} )$

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Also,

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$g(\frac{1}{x-2} )= \frac{2(\frac{1}{x-2}) +1 }{\frac{1}{x-2}}$

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B.

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Since, the function $f(g(x))$ is not defined for $x=0$ .

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For the Composition function $g(f(x)) =g(\frac{1}{x-2} )=x$

Since, the function $g(f(x))$ is not defined for $x=2$ .

Therefore, the domain is $(-\infty,2)\cup(2,\infty)$

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AVprozaik [17]

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