Find the vertex of the parabola, and determine whether the parabola opens upward, downward, to the left, or to the right.y = (x + 5)2 + 4
A. (-4, 5), up
B. (-5, 4), up
C. (4, -25), down
D. (4, -5), down
Answer: B
Mathematics
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Use the quadratic formula to find the exact solutions.3x2 - 23x - 8 = 0
A. - 
, -3
B. - 
, 8
C. - 
, 3
D. -3, 8
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Write sigma notation.9 + 27 + 81 + 243 + 729
A. 
B. 
C. 
D. 
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Provide an appropriate response.
= 
.
A. 3m - n B. 3n - m C. 3m - 3n D. 3m/n
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Rationalize the denominator. 
A. 7a
B. 11
C. 
D. 
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