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What is the solution to the equation below? Round your answer to two decimal places.

\[ 3 \cdot e^x = 11.76 \]

A. \( x = 40.98 \)

B. \( x = 50.40 \)

C. \( x = 0.59 \)

D. \( x = 1.37 \)

Answer :

Sure, let's solve the equation step-by-step:

We start with the equation:
[tex]\[ 3 \cdot e^x = 11.76 \][/tex]

1. Isolate [tex]\( e^x \)[/tex]:
[tex]\[ e^x = \frac{11.76}{3} \][/tex]
[tex]\[ e^x = 3.92 \][/tex]

2. Take the natural logarithm (ln) of both sides to solve for [tex]\( x \)[/tex]:
[tex]\[ \ln(e^x) = \ln(3.92) \][/tex]
[tex]\[ x = \ln(3.92) \][/tex]

3. Calculate [tex]\( \ln(3.92) \)[/tex]:
This is a calculation that you would typically use a calculator for. The natural logarithm of 3.92 is approximately 1.367.

4. Round to two decimal places:
[tex]\[ x \approx 1.37 \][/tex]

So, the solution to the equation [tex]\( 3 \cdot e^x = 11.76 \)[/tex], rounded to two decimal places, is:
[tex]\[ x = 1.37 \][/tex]

Therefore, the correct option is:
[tex]\[ \boxed{x = 1.37} \][/tex]

Option D is the correct answer.

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