Math Problem Statement
Use logarithms to solve the given equation. (Round the answer to four decimal places.)
9(1.055x + 1) = 10
x =
Solution
We are given the equation:
Step 1: Isolate the exponential expression
First, we divide both sides of the equation by 9:
Now subtract 1 from both sides:
Step 2: Apply logarithms
To solve for , take the logarithm of both sides. We will use the natural logarithm (ln), though you can also use the logarithm base 10 (log):
Using the logarithmic property , we rewrite the left-hand side:
Step 3: Solve for
Now, solve for by dividing both sides by :
Step 4: Calculate the result
Let me calculate this value for you.The value of , rounded to four decimal places, is approximately .
Would you like more details on this process or have any questions?
Here are 5 related questions you could explore:
- How do logarithmic properties help in solving exponential equations?
- Can logarithms with different bases (e.g., base 10 vs. natural log) lead to the same solution?
- What is the significance of the base in the exponential equation?
- How does the value of change if the base 1.055 were larger or smaller?
- How can logarithms be used to simplify more complex exponential equations?
Tip: When solving exponential equations, using logarithms allows us to "bring down" the exponent, making the equation linear and easier to solve.
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Math Problem Analysis
Mathematical Concepts
Exponential Equations
Logarithms
Algebra
Formulas
Logarithmic Property: ln(a^b) = b * ln(a)
Exponential Equation: a^x = b
Theorems
Logarithmic Theorem: log_b(a) = x is equivalent to b^x = a
Logarithmic Properties for Simplification
Suitable Grade Level
Grades 10-12
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