To determine which of the given numbers could be used to specify how many cups of flour should be used in a bread recipe, we need to consider which of these numbers are positive and can reasonably represent a quantity of flour.
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Square Root of 3: This is approximately 1.732, which is a positive number and could represent a quantity of flour.
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23/4: This is equal to 5.75, which is also a positive number and could represent a quantity of flour.
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-3: This is a negative number and cannot represent a quantity of flour.
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4/7: This is approximately 0.571, which is positive and could represent a quantity of flour.
Based on these evaluations, the numbers that could be used to specify how many cups of flour should be used in a bread recipe are:
- Square root of 3
- 23/4
- 4/7