Suppose C(x) 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 is called the marginal propensity to save.
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For the consumption function find the marginal propensity to save. Round the answer to three decimal places, if necessary.
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$__________ billion/billion dollars
Fill in the blank(s) with the appropriate word(s).
0.285
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Evaluate the integral.
A. 22 sin x + 44x cos
x + C
B. 88 sin x - 44x cos
x + C
C. 22x sin x - 44 cos
x + C
D. 44x sin x + 88 cos
x + C
Find the first and second derivatives of the function.
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?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer the question about the given function.Given the function f(x) = , list the x-intercepts, if any, of the graph of f.
A. (-3, 0) B. (3, 0) C. (9, 0), (-9, 0) D. none
Solve the problem.A flat rectangular piece of aluminum has a perimeter of 68 inches. The length is 14 inches longer than the width. Find the width.
A. 8 inches B. 26 inches C. 18 inches D. 28 inches