Find an equation for the ellipse described.Center at (0, 0); focus at (0, 7); vertex at (0, 8)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: B
Mathematics
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Write the first four terms of the sequence whose general term is given.an = 3(4n - 3)
A. -9, 3, 15, 27, 39 B. 3, 15, 27, 39, 51 C. 1, 5, 9, 13, 17 D. 3, 6, 9, 12, 15
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Multiply.(x2 - 3x + 1)(x2 + x - 5)
A. x4 - 3x3 - 2x2 + 16x - 5 B. x4 - 2x3 - 7x2 + 16x - 5 C. x4 - 2x3 - 8x2 + 16x - 5 D. x4 - 3x2 - 5
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Find the sum of the finite arithmetic sequence. ? ?2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 ?
A. 90 B. 80 C. 70 D. 100 E. 110
Mathematics
Determine which of the graphs below represents the following function y=|x|sin x ?
A. 
B. 
C. 
D. 
E. 
Mathematics