Find an equation for the parabola with vertex at the origin.Through (9, 9), symmetric with respect to the y-axis
A. y = 9x2
B. y = 
x2
C. x = 
y2
D. x = -9y2
Answer: B
Mathematics
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Evaluate the given expression.sin
A. -1
B. 1
C. 
D. - 
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Determine the real solutions to the system of nonlinear equations.
A. 
, 
B. 
, (1, 5)
C. 
, 
D. 
, (1, 5)
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Solve.The Henderson family heats their home with firewood. They used $100worth of wood in 20 days. Mr. Henderson estimates that he needs to burn wood at that rate for about 66 days during the winter. If that is so, how much will the 66-day supply of wood cost?
A. $165 B. $660 C. $330 D. $6600
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Find the center and radius of the circle.x2 = 16 - (y - 4)2
A. Center: (0, -4); radius: 4 B. Center: (4, 0); radius: 16 C. Center: (0, 4); radius: 4 D. Center: (-4, 0); radius: 16
Mathematics