Questions: Solve for x in the equation below.
Round your answer to the nearest hundredth. Do not round any intermediate computations.
e^(-3x)=9
x=
Transcript text: Solve for $x$ in the equation below.
Round your answer to the nearest hundredth. Do not round any intermediate computations.
\[
e^{-3 x}=9
\]
\[
x=
\]
Solution
Solution Steps
Step 1: Start with the equation $2.718^{-3x} = 9$.
Step 2: Take the natural logarithm (ln) of both sides to get $ln(2.718^{-3x}) = ln(9)$.
Step 3: Use the property of logarithms to bring the exponent in front: $-3x \cdot ln(2.718) = ln(9)$.
Step 4: Solve for $x$ by isolating it: $x = \frac{ln(9)}{-3 \cdot ln(2.718)} = -0.73$.