Question

3If f(x)Vx-3, complete the following statement:x + 2f(19) =Answer hereSUBM

Answer 1

The expression f(19) tells us to plug in "19" as the value of x in the f(x) function.

`\begin{gathered} f(x)=(3)/(x+2)-\sqrt[]{x-3} \\ f(19)=(3)/(19+2)-\sqrt[]{19-3} \end{gathered}`

Then, simplify.

a. Add the denominator and subtract the numbers inside the parenthesis.

`f(19)=(3)/(21)-\sqrt[]{16}`

b. Get the square root of 16.

`f(19)=(3)/(21)-4`

c. Subtract the two numbers.

`f(19)=-(27)/(7)`

Therefore, f(19) = -27/7.