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91Ó°ÊÓ

Evaluate each expression. Round off your answer to the nearest thousandth where necessary. $$(1.83)^{5}$$

Short Answer

Expert verified
19.444

Step by step solution

01

- Understanding the Problem

The exercise asks to evaluate the expression \( (1.83)^5 \). This means you need to multiply 1.83 by itself five times.
02

- Calculate the Expression

Calculate the power of the number by multiplying 1.83 by itself five times. Using a calculator, compute \( (1.83)^5 \).
03

- Perform the Calculation

Using a calculator, \( (1.83)^5 \) results in approximately 19.4442982783.
04

- Round to the Nearest Thousandth

Round the answer to the nearest thousandth. The number 19.4442982783 rounded to the nearest thousandth is 19.444.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Evaluating Expressions
Evaluating expressions is a fundamental part of algebra. In this exercise, we evaluated the expression \( (1.83)^5 \). This involves calculating the value by raising the base number (1.83) to the power of 5.
To understand evaluations, remember:
  • The base (1.83 in this case) is the number being multiplied.
  • The exponent (5) tells you how many times to multiply the base by itself.
So, \( (1.83)^5 \) means 1.83 multiplied by itself five times: 1.83 * 1.83 * 1.83 * 1.83 * 1.83.
Accurate calculation often requires a calculator, especially when dealing with large exponents.
Rounding Numbers
Rounding numbers makes them simpler and easier to use. You often round to a specific decimal place for consistency. In this exercise, we rounded to the nearest thousandth.
Here’s how to round to the nearest thousandth:
  • Identify the digit in the thousandth place. In 19.4442982783, it's the third digit after the decimal: ‘4’.
  • Look at the digit right after it. If it's 5 or more, round up the thousandth digit by 1. Otherwise, leave it as is.
For 19.4442982783, the thousandth digit is 4 and the next digit is 2 (less than 5). Therefore, rounded to the nearest thousandth, it stays 19.444.
Using a Calculator
Using a calculator is essential for complex calculations, especially in algebra. Here’s how to use a calculator effectively:
  • Enter the base number correctly: Type 1.83.
  • Use the exponent function (often labeled as \(^ \) or \( y^x \)): Type ^ or tap the exponent button.
  • Enter the exponent: Type 5. Then press 'equals' or 'compute' to get the result.
For \( (1.83)^5 \), the calculator should display approximately 19.4442982783. Using a calculator simplifies the process and increases accuracy, especially with large or precise values.

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