Although this function could be interpreted two different ways due to formatting, the equation below must be the equation you meant (because the other would create an answer that is not listed in the choices).

$f(x)=\dfrac{12}{4x+2}$

To find f(-1), substitute the x('s) in the equation with -1.

$f(-1)=\dfrac{12}{4(-1)+2}$

$=\dfrac{12}{-4+2}$

$=\dfrac{12}{-2}$

$=-6$

That's your answer.

3 0

4 years ago

Find a formula for the function f(x) such that f′(x)=(ln(x))^2/x and f(2)=6

Rzqust [24]

F(x)= ∫ln²x/x dx= ∫ln²xd(lnx) cause d(lnx)= (lnx)'dx=1/x dx
= ln³x/3 +C with C is constant
In addition, we have f(2)=6, so we have 6=ln³2/3+C
or C= 6- ln³2/3
And f(x)= ln³x/3+ 6- ln³2/3

4 0

3 years ago

How many miles can you get on one tank of gas if it holds 18 gallons and you get 22 miles per gallon

Alexeev081 [22]

396

18 x 22= 396 hope i helped you.

4 0

3 years ago