Solve the equation by the method of your choice. Simplify irrational solutions, if possible.2x2 + 12x = - 3
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Simplify and add or subtract wherever possible.20
- 10
A. 30
B. 50
C. 10
D. 10
Mathematics
Write a direct variation equation, y = kx, that satisfies the ordered pairs in the table.
A. y = 4x
B. y = 
x
C. y = 
x
D. y = 
x
Mathematics
Determine the vertex of the graph of f.f(x) = 2x2 + 8x + 13
A. (2, -5) B. (5, -2) C. (-5, 2) D. (-2, 5)
Mathematics
Solve the problem.A plane flying a straight course observes a mountain at a bearing of 33.4° to the right of its course. At that time the plane is 
from the mountain. A short time later, the bearing to the mountain becomes 43.4°. How far is the plane from the mountain when the second bearing is taken (to the nearest tenth of a km)?
A. 4.8 km B. 3.2 km C. 7.5 km D. 8.3 km
Mathematics