Evaluate Expressions-WE10-P1

Section 2.21 Evaluate Expressions-WE10-P1

Subgoals for evaluating an assignment statement.

Decide order of operations
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1. Decompose as necessary
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Determine operator behavior based on operands
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1. Operator and operands must be compatible
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Solve arithmetic, expression, or operation
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1. Decompose as necessary
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Subsection 2.21.1

For all given problems below, evaluate what value is assigned to the variable . Each problem is independent of the others (e.g. Question 2 does not depend on Question 1, only the “Given” code).

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Subsection 2.21.2 Expressions-WE10-P1

Given

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alpha = 10
beta = 0
gamma = -2.5
delta = 'string'

Exercises Exercises

1.

Q68: What is the value stored in result?

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result = alpha and beta

0
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10
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False
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True
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2.

Q69: What is the value stored in result?

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result = beta or alpha or gamma + 5

10
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15
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0.0
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2.5
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-2.5
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3.

Q70: What is the value stored in result?

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result = True or alpha

True
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False
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1
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10
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Invalid Code
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4.

Q71: What is the value stored in result?

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result = delta or alpha

10
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True
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False
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’string’
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Invalid Code
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5.

Q72: What is the value stored in result?

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result = delta or gamma

-2.5
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’string’
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True
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False
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Invalid Code
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