Math Problem Statement

Given P ( t )

18 ( 2.3 ) t , evaluate P ( 3 ) . Round your answer to the nearest whole number.

Solution

To evaluate P(3)P(3), substitute t=3t = 3 into the given function:

P(t)=18(2.3)tP(t) = 18 \cdot (2.3)^t

P(3)=18(2.3)3P(3) = 18 \cdot (2.3)^3

First, calculate (2.3)3(2.3)^3:

2.33=2.32.32.3=12.1672.3^3 = 2.3 \cdot 2.3 \cdot 2.3 = 12.167

Now multiply:

P(3)=1812.167=219.006P(3) = 18 \cdot 12.167 = 219.006

Round to the nearest whole number:

P(3)219P(3) \approx 219

Final Answer:

P(3)=219P(3) = 219


Would you like a detailed explanation of any of the steps?

Here are 5 related questions you might find helpful:

  1. How do you calculate powers of decimals?
  2. Why is rounding important, and how do you round correctly?
  3. What are other examples of exponential functions in real-world applications?
  4. How can the base of an exponential function affect its growth rate?
  5. What happens to P(t)P(t) as tt \to \infty in this function?

Tip: Always double-check your calculations when working with powers and large numbers to avoid errors.

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Math Problem Analysis

Mathematical Concepts

Exponential Functions
Exponentiation
Rounding

Formulas

P(t) = 18 * (2.3)^t

Theorems

Exponentiation rules

Suitable Grade Level

Grades 9-12