W=4 ;you subtract 7 from both sides and then divide both sides by 3.
Answer:
$180
Step-by-step explanation:
$18 × 6
=$180
That's your answer
Take the deritivive
remember
the deritivive of f(x)/g(x)=(f'(x)g(x)-g'(x)f(x))/(g(x)^2)
so
deritiveive is ln(x)/x is
remember that derivitive of lnx is 1/x
so
(1/x*x-1lnx)/(x^2)=(1-ln(x))/(x^2)
the max occurs where the value is 0
(1-ln(x))/(x^2)=0
times x^2 both sides
1-lnx=0
add lnx both sides
1=lnx
e^1=x
e=x
see if dats a max or min
at e/2, the slope is positive
at 3e/2, the slope is negative
changes from positive to negative at x=e
that means it's a max
max at x=e
I realize I didn't find the max point, so
sub back
ln(x)/x
ln(e)/e
1/e
the value of the max would be 1/e occuring where x=e
4th option is answer (1/e) because that is the value of the maximum (which happens at x=e)
3/5 of 180 is 108
180-108=72
she would have 72$ left
Answer:
x > 0 where x = any real number
Step-by-step explanation:
If we divide any number by 0 then the answer is Undefined
In option 1
x is greater than 0
In option 2
x is Less Than or equal to 0
In option 3
x is greater than or equal to 0
In option 4
x is Less Than 0
As the above statement any number which is divided by 0 the answer is always Undefined
Thus, Option 1 is correct
x > 0 where x = any real number
<u>-TheUnknownScientist</u><u> 72</u>