Hello there. To solve this question, we'll have to plug the value of x in the function and evalute it;.
Given the function:
[tex]f(x)=5.6e^{-0.46x}[/tex]
We want to determine
[tex]f(7.5)[/tex]
With a calculator, we plug the value
[tex]f(7.5)=5.6e^{-0.46\cdot7.5}=5.6e^{-3.45}[/tex]
And this is approximately equal to
[tex]f(7.5)\approx0.17[/tex]
This is the value of the function.
