Question

If f(x)=3/x+2- sqrt x-3 f(7)=?

Answer 1

To get the answer, you need to solve the equation for x = 7.

f(7) = 3/7 + 2 - sqrt(7) - 3.

= 3/7 - 1 - sqrt(7).

If you need to simplify it further:

= -4/7 - sqrt(7).

If you need it in decimal form: = -3.2171798824

Answer 2

f(7)=-3.217

Explanation:

We are given that
`f(x)=(3)/(x)-\sqrtx-3`

We have to find the value of f(7).

Substitute the value of x=7

Then, we get

`f(7)=(3)/(7)+2-\sqrt7-3=(3)/(7)-1-\sqrt7`

`f(7)=(3-7)/(7)-\sqrt7=-(4)/(3)-\sqrt7`

`f(7)=-(4)/(7)-2.646`

Because
`\sqrt7=2.646`

`f(7)=-(4+18.522)/(7)=-(22.522)/(7)`

`f(7)=-3.217`

Hence, f(7)=-3.217