Concept explainers
To calculate : the sum of two numbers and its length and direction
Answer to Problem 39E
The sum of the expression is
Explanation of Solution
Given information : Consider, the expression provided in the question
Calculation : TO-DETERMINE the sum of two number, draw a number line. Place a pencil at 0 and move 4 unit to the right to reach, then move
Hence,
The number line is obtained as:
The final position on the number line is the required sum of the two number that is
Hence,
The sum of the expression is
Chapter 1 Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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