Evaluate the function. Round to two decimal places.
-Evaluate $\frac { 30 } { 1 + 2 \mathrm { e } ^ { - \mathrm { x } } } \text { when } \mathrm { x } = 4$
A) 28.94
B) 23.15
C) 57.88
D) 34.73

Question

Quizplus · Accepted Answer

To evaluate the function $\frac { 30 } { 1 + 2 \mathrm { e } ^ { - \mathrm { x } } }$ when $x = 4$, substitute $x = 4$ into the equation: $\frac { 30 } { 1 + 2 \mathrm { e } ^ { -4 } }$. Calculate the exponent first: $e^{-4}$, then multiply by 2, add 1, and finally divide 30 by this result. The calculation gives approximately 28.94.

Evaluate the Function 301+2e−x when x=4\frac { 30 } { 1 + 2 \mathrm { e } ^ { - \mathrm { x } } } \text { when } \mathrm { x } = 41+2e−x30​ when x=4

Evaluate the Function $\frac { 30 } { 1 + 2 \mathrm { e } ^ { - \mathrm { x } } } \text { when } \mathrm { x } = 4$