Simplify the expression.
4
A. 1
B. 
C. 
D. 300
Answer: C
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Evaluate the double integral.
A. - 
B. - 45
C. - 405
D. - 
Suppose 
measures an economy's personal consumption expenditure and x the personal income, both in billions of dollars. Then, 
measures the economy's savings corresponding to an income of x billion dollars. Then
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?
The quantity dS/dx is called the marginal propensity to save.
?
For the consumption function 
, where 
and x are measured in billions of dollars, find the marginal propensity to save when 
.
?
A. -$0.213 billion/billion dollars
B. $0.874 billion/billion dollars
C. -$0.85 billion/billion dollars
D. $0.119 billion/billion dollars
Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
+ 
A. 
B. 
C. 
D. 
Use the given conditions to find an equation in slope-intercept form of each of the nonvertical lines. Write vertical lines in the form x = h.Perpendicular to x = 1; passing through (-1, -5)
A. -1x - 5y = 0 B. -5x - 1y = 0 C. x = -1 D. y = -5