Find the vertex of the quadratic equation's graph and determine whether the graph opens up or down.y = 4x2 + 6x - 8
A. 
, down
B. 
, down
C. 
, up
D. 
, up
Answer: D
Mathematics
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Replace the polar equation with an equivalent Cartesian equation. r = 24 sin ?
A. x2 + (y - 24)2 = 144 B. x2 + (y - 12)2 = 144 C. y = 24 D. (x - 12)2 + y2 = 144
Mathematics
Evaluate using the correct order of operation.
2 ÷ 
A. 
B. 
C. 
D. 
Mathematics
All references are to the figure below. The distance between A and D is a, and the distance between D and C is x. 
Assuming that A = 17°, ?BDC = 43°, and c1 = 60. find h, x, and a.
A. h ? 18, x ? 19, a ? 39 B. h ? 40, x ? 40, a ? 90 C. h ? 41, x ? 44, a ? 90. D. h ? 20, x ? 20, a ? 40
Mathematics
Determine whether the ordered pair is a solution for the equation.(3, 8); x + y = 6
A. Yes B. No
Mathematics