Use a calculator to evaluate the function at the indicated values. Round your answers to three decimals.

[tex]\[ h(x) = e^{-3x} \][/tex]

[tex]\[ h\left(\frac{1}{2}\right) = \square \][/tex]
[tex]\[ h(2.5) = \square \][/tex]
[tex]\[ h(-1) = \square \][/tex]
[tex]\[ h(-\pi) = \square \][/tex]



Answer :

Absolutely, let's evaluate the function [tex]\( h(x) = e^{-3x} \)[/tex] at the specified values and round the answers to three decimal places.

### Step-by-Step Solution:

1. Evaluating [tex]\( h\left(\frac{1}{2}\right) \)[/tex]:
[tex]\[ h\left(\frac{1}{2}\right) = e^{-3 \left(\frac{1}{2}\right)} = e^{-1.5} \][/tex]
Using a calculator to find [tex]\( e^{-1.5} \)[/tex], we get:
[tex]\[ e^{-1.5} \approx 0.223 \][/tex]
Therefore, [tex]\( h\left(\frac{1}{2}\right) \approx 0.223 \)[/tex].

2. Evaluating [tex]\( h(2.5) \)[/tex]:
[tex]\[ h(2.5) = e^{-3(2.5)} = e^{-7.5} \][/tex]
Using a calculator to find [tex]\( e^{-7.5} \)[/tex], we get:
[tex]\[ e^{-7.5} \approx 0.001 \][/tex]
Therefore, [tex]\( h(2.5) \approx 0.001 \)[/tex].

3. Evaluating [tex]\( h(-1) \)[/tex]:
[tex]\[ h(-1) = e^{-3(-1)} = e^{3} \][/tex]
Using a calculator to find [tex]\( e^{3} \)[/tex], we get:
[tex]\[ e^{3} \approx 20.086 \][/tex]
Therefore, [tex]\( h(-1) \approx 20.086 \)[/tex].

4. Evaluating [tex]\( h(-\pi) \)[/tex]:
[tex]\[ h(-\pi) = e^{-3(-\pi)} = e^{3\pi} \][/tex]
Using a calculator to find [tex]\( e^{3\pi} \)[/tex], we get:
[tex]\[ e^{3\pi} \approx 12391.648 \][/tex]
Therefore, [tex]\( h(-\pi) \approx 12391.648 \)[/tex].

### Summary:

[tex]\[ \begin{array}{ll} h(x) = e^{-3x} & \\ h\left(\frac{1}{2}\right) \approx 0.223 & \\ h(2.5) \approx 0.001 & \\ h(-1) \approx 20.086 & \\ h(-\pi) \approx 12391.648 & \\ \end{array} \][/tex]
These are the rounded values of the function [tex]\( h(x) \)[/tex] at the given points.