Find the value of a so that vectors 
and 
are perpendicular.
Definitions:
Nonnutritive Sweeteners
Artificial or natural sweeteners that provide little to no energy, used as sugar substitutes in food and beverages.
Saturated Fat
A type of dietary fat found primarily in animal products and certain oils, known for raising LDL (bad) cholesterol levels in the blood.
Cholesterol Intake
The amount of cholesterol consumed through food, important to monitor as excessive intake can lead to increased risk of heart disease and stroke.
Nasogastric Tube
A flexible tube that is inserted through the nose, down the esophagus, and into the stomach for feeding or medical treatment purposes.
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