What are the domain and range of the function f(x) = 4(square-root 3 start-root 81 end-root) superscript x?

{x| x is a real number}; {y| y > 0}
{x| x > 4}; {y| y > 0}
{x| x is a real number}; {y| y > 4}
{x| x > 4}; {y| y > 4}

Domain, = {x| x is a real number}

Range,= {y|y> 4}

Step-by-step explanation:

The function is,'

f(x) =

    =

 Here, the domain is {x| x is a real number}

and since

> 0 ∀ x ∈ R

So, the range  is,

{y|y> 4}

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

the answer will be b x² +x-1

step-by-step explanation: