Answer: The value of
is 5
Explanation:
-Solve:
×
![=3^n](https://img.qammunity.org/2021/formulas/mathematics/high-school/cker7otlr16m0njcxv0ldacyaqj68y8wnz.png)
-If two numbers with exponents are multiplying together, then the exponents would add up together:
![3^5 = 3^n](https://img.qammunity.org/2021/formulas/mathematics/high-school/lra2j27wg3gv7bmo0hoacrd453o4qpz5vt.png)
-Simplify by the exponent:
![243 = 3^n](https://img.qammunity.org/2021/formulas/mathematics/high-school/t8mj5c23wr2he3rf3x1yedvwtky2ixyb5p.png)
-Take the logarithm both sides of the equation:
![log(3^n)= log (243)](https://img.qammunity.org/2021/formulas/mathematics/high-school/xdamf4cw8eb2zdm8lqkmlev652lw19eio5.png)
- Then, you divide both sides by
:
![n=(log(243))/(log(3))](https://img.qammunity.org/2021/formulas/mathematics/high-school/th5sxq92ytlqtdkh2uah53i7n38y7edky8.png)
- Use the change-of-base formula, which is
:
![n = log_(3)(243)](https://img.qammunity.org/2021/formulas/mathematics/high-school/o3dh8tmtfn5d237e7v8mtorbkll9wmlwbm.png)
![n = 5](https://img.qammunity.org/2021/formulas/mathematics/college/pwyq5dqls15ocbaouicnk7qc83zmdzghxo.png)
So, the value of
is 5.