COMPUTER SCIENCE ILLUMIN.-TEXT
COMPUTER SCIENCE ILLUMIN.-TEXT
7th Edition
ISBN: 9781284156010
Author: Dale
Publisher: Jones & Barlett
Question
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Chapter 3, Problem 35E
Program Plan Intro

Given information:

  • The signed value of A is 5.
  • The signed value of B is -7.

Number Line:

  • Number line is a line used to represent the real numbers in a horizontal line.
  • Every point in a horizontal line represents a real number.
  • Positive numbers are represented to the right of zero and negative numbers are represented to the left of zero.
  • Number line is mainly used for the operation of basic addition and subtraction performed on negative numbers.

COMPUTER SCIENCE ILLUMIN.-TEXT, Chapter 3, Problem 35E

Explanation of Solution

b.

Proving solution to the operation “A-B”:

To evaluate the result of the given expression “A-B”, substitute the value of A as 5 and B as -7 in the expression. The result is,

AB=5(7)</

Explanation of Solution

c.

Proving solution to the operation “B+A”:

To evaluate the result of the given expression “B+A”, substitute the value of B as -7 and A as 5 in the expression. The result is,

B+A=(7)+5=<

Explanation of Solution

d.

Proving solution to the operation “B-A”:

To evaluate the result of the given expression “B+A”, substitute the value of B as -7 and A as 5 in the expression. The result is,

BA=(7)5<

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