Determine whether the graph of the equation is a circle or an ellipse.9x2 + 90x + 25y2 - 50y + 25 = 0
A. Ellipse
B. Circle
Answer: A
Mathematics
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.
A. 
B. 
C. 
D. 
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Find the indicated vector.Let u = 
, v = 
. Find u + v.
A. 
B. 
C. 
D. 
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Evaluate the double integral over the given region.
R: 0 ? x ? 1, 0 ? y ? 2
A. 
B. 
C. 
D. - 
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Solve the logarithmic equation.log (x + 4) = log (4x - 2)
A. 
B. 
C. 
D. 
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