Determine the vertex, focus, and directrix of the parabola and sketch its graph.(x - 1)2 = 8(y + 3)
A. vertex: (1, -3)
focus: (1, -5)
directrix: y = -1
B. vertex: (-3, 1)
focus: (-3, 3)
directrix: y = -1
C. vertex: (1, -3)
focus: (1, -1)
directrix: y = -5
D. vertex: (-1, 3)
focus: (-1, 5)
directrix: y = 1
Answer: C
Mathematics
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Solve the right triangle.
A = 87°34', a = 8.38
A. B = 3°26', b = 197.2, c = 8.4 B. B = 2°26', b = 0.4, c = 8.4 C. B = 2°26', b = 0.4, c = 197.4 D. B = 87°34', b = 197.2, c = 0.4
Mathematics
Find the domain of the rational function.f(x) = 
A. (-?, ?) B. (-?, -4) ? (-4, ?) C. (-?, 4) ? (4, ?) D. (-?, - 3) ? (- 3, 3) ? (3, ?)
Mathematics
Simplify the expression so that it contains only positive exponents 
.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
What will be an ideal response?
Mathematics