Given the equation of a surface of revolution 
, find the equation of its generating curve in the yz-plane rotating about the y-axis.
?
A. 
or 
B. 
C. 
or 
D. 
E. 
or 
Answer: A
Mathematics
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My business pays tax on income, and the tax paid is a linear function of income. If my income is $10420 then the tax owed is $929.60. If my income is $11309 then the tax owed is $1000.72. How much tax do I owe if my income is $11874? ?
A. $1045.92 B. $1046.18 C. $949.92 D. $950.03
Mathematics
Predict the general, or nth term, an, of the sequence.2, 10, 18, 26, 34, . . .
A. an = 8n - 3 B. an = 2(8)n - 1 C. 8n - 6 D. an = 6n - 8
Mathematics
Find the vertices of the hyperbola.25(y - 4)2 - 9(x + 3)2 = 225
A. (-8, 4) and (2, 4) B. (-2, -4) and (8, -4) C. (3, -1) and (3, -7) D. (-3, 7) and (-3, 1)
Mathematics
Multiply or divide as indicated.
÷ 
A. 
B. 1
C. 
D. 99
Mathematics