Solve the problem.Find the value of k so that the graph of 5y - kx = 4 and the line containing the points (5, -8) and (2, 4) are parallel.
A. k = -19
B. k = -20
C. k = -19.5
D. k = -22
Answer: B
Mathematics
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Solve the system to the nearest 0.1 for each variable by using a graphing calculator.2.0v = 4.7t3.4t - 3.9v = -2.6
A. v = 1.0; t = 0.7 B. v = 1.2; t = 0.3 C. v = 1.1; t = 0.5 D. v = 0.9; t = 0.6
Mathematics
Calculate the area of the surface S.S is the cap cut from the paraboloid z = 
- 3x2 - 3y2 by the cone z = 
.
A. 
B. 
C. 
D. 
Mathematics
The graph of f(x) = ax2 + bx + c is given in the figure. Determine whether the discriminant is positive, negative, or zero.
A. Zero B. Negative C. Positive
Mathematics
Find the domain of the given function.f(x) = 
A. [- 2, ?)
B. (-?, - 2]
C. (-?, ?)
D. (-?, - 
]
Mathematics