Computer Science Illuminated
Computer Science Illuminated
7th Edition
ISBN: 9781284155617
Author: Nell Dale, John Lewis
Publisher: Jones & Bartlett Learning
Question
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Chapter 3, Problem 34E

a.

Program Plan Intro

Given information:

  • The signed value of W is 17.
  • The signed value of X is 28.
  • The signed value of Y is -29.
  • The signed value of Z is -13.

a.

Expert Solution
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Explanation of Solution

Evaluation of expression “X+Y”:

Evaluate the value of the given expression “X+Y” by substituting the value of “X” as “28” and “Y” as “-29” in the expression. The result is,

X+Y   = 28 + (29)           =1

Therefore, the calculated value of given expression is “-1”.

Explanation of Solution

b.

Evaluation of expression “X+W”:

Evaluate the value of the given expression “X+W” by substituting the value of “X” as “28” and “W” as “-17” in the expression. The result is,

X+W  = 28 + 17           = 45

Therefore, the calculated value of given expression is “45”.

Explanation of Solution

c.

Evaluation of expression “Z+W”:

Evaluate the value of the given expression “Z+W” by substituting the value of “Z” as “-13” and “W” as “17” in the expression. The result is,

Z+W   = (13) + 17           = 4

Therefore, the calculated value of given expression is “4”.

Explanation of Solution

d.

Evaluation of expression “Y+Z”:

Evaluate the value of the given expression “Y+Z” by substituting the value of “Y” as “-29” and “Z” as “-13” in the expression. The result is,

Y+Z   = (29) + (13)           =42

The calculated value of given expression is “-42”.

Explanation of Solution

e.

Evaluation of expression “W-Z”:

Evaluate the value of the given expression “W-Z” by substituting the value of “W” as “17” and “Z” as “-13” in the expression. The result is,

WZ  = 17(13)           = 30

Therefore, the calculated value of given expression is “30”.

Explanation of Solution

f.

Evaluation of expression “X-W”:

Evaluate the value of the given expression “X-W” by substituting the value of “X” as “28” and “W” as “-17” in the expression. The result is,

XW  = 2817           = 11

Therefore, the calculated value of given expression is “11”.

Explanation of Solution

g.

Evaluation of expression “Y-W”:

Evaluate the value of the given expression “Y-W” by substituting the value of “Y” as “-29” and “W” as “17” in the expression. The result is,

YW  = (29)17           =46

Therefore, the calculated value of given expression is “-46”.

Explanation of Solution

h.

Evaluation of expression “Z-Y”:

Evaluate the value of the given expression “Z-Y” by substituting the value of “Z” as “-13” and “Y” as “-29” in the expression. The result is,

ZY   = (13)(29)           = 16

Therefore, the calculated value of given expression is “16”.

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