Solve, rewrite in interval notation, and graph.
+ 8 ? 13 or 9 - 
> 7
A. (-?, 4] ? [10, ?)
B. (-?, 4) ? [10, ?)
C. 
? [10, ?)
D. 
? (10, ?)
Answer: C
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Consecutive interior angles are _________.
a. Supplementary b. Congruent c. Opposite reciprocals d. Complementary
Find the domain of the function.f(x) = ln(-7 - x)
A. (-?, -7) B. (7, ?) C. (-7, ?) D. (-?, 7)
Find: a. The center and radius of the circle. b. The x- and y-intercepts of the graph of the circle.x2 + y2 + 4x - 4y - 3 = 0
A. a. center = (-2, 2); radius = 
b. (-2 + 
, 0), (-2 - 
, 0), (0, 2 + 
), (0, 2 - 
)
B. a. center = (-2, -2); radius = 
b. (-2 + 
, 0), (-2 - 
, 0), (0, 2 + 
), (0, 2 - 
)
C. a. center = (-2, 2); radius = 
b. (-2 + 
, 0), (0, 2 + 
)
D. a. center = (2, -2); radius = 
b. (-2 + 
, 0), (-2 - 
, 0), (0, 2 + 
), (0, 2 - 
)
Write the system of linear equations represented by the augmented matrix. Use x, y, and z as the variables.
A. 
B. 
C. 
D. 