Find the equation of the parabola determined by the given information.Vertex at the origin, focus at (-9, 0)
A. x = - 
y2
B. x2 = -36y
C. y2 = -36x
D. y = - 
x2
Answer: A
Mathematics
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Solve the system of equations.7x + 7y + z = 1 x + 8y + 8z = 89x + y + 9z = 9
A. (0, 0, 1) B. (-1, 1, 1) C. (1, -1, 1) D. (0, 1, 0)
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State whether the vectors are parallel, orthogonal, or neither.v = 3i + 2j,
w = 2i - 3j
A. Orthogonal B. Parallel C. Neither
Mathematics
Calculate the total amount due to the IRS from the firm.Peter's Landscaping collected $933.83 FICA, $222.34 medicare, and 
federal withholding from employees.
A. $2,605.88 B. $1,672.05 C. $2,383.54 D. $2,899.42
Mathematics
Using the Law of Cosines, find angle A if a = 142, b = 96, and c = 200.
a. 40.8ø b. 49.2ø c. 61.7ø d. 81.6ø e. 139.2ø
Mathematics