Truth Value Of Open Sentences

                     Lesson 1

Problem:    Determine whether the following sentences are TRUE, FALSE, or OPEN.

                                                                                  “d – 2 = 11”

Solution      Open sentences have a variable.

Step 1:

Solution      This sentence has a variable ‘d’.

Step 2:         

Solution       Answer: Open

Step 3: 

Complete

                                                            Try two practice problems:

Determine whether the following sentences are TRUE, FALSE, or OPEN.
1.	"70 is the square root 4900."
2.	"12y - 12 = 13."

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