Find the cosine of the angle between 
and 
.
Definitions:
Consumption
Consumption involves the use of goods and services by households, and it's a primary component of economic activity.
Lottery
A lottery is a form of gambling that involves the drawing of numbers for a prize, often administered by state or federal governments.
Conspicuous Consumption
The act of spending money on and acquiring luxury goods and services to publicly display wealth and social status.
Thorstein Veblen
An American economist and sociologist known for his theory of the leisure class and critique of consumer culture.
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