Complete the sentence.The straight line that defines the half-plane that is the graph of a linear inequality is
A. a region.
B. an axis.
C. a boundary.
D. a domain.
Answer: C
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Which expression(s) is(are) true? 1. A plane as a geometric figure that has position but no length, width, or depth. 2. Points are labeled with capital letters. 3. A plane extends infinitely far in both directions, but has no width or depth. 4. Planes are made up of points. 5. A line is a flat surface, extending infinitely far in every direction, that has length and width but no depth.
A. 1, 2, 3, 4 B. 2 , 4 C. 1, 2, 4, 5 D. 1, 2
Express the number in scientific notation.0.000315
A. 3.15 × 10-3 B. 3.15 × 104 C. 3.15 × 10-4 D. 3.15 × 10-5
Graph the equation in the rectangular coordinate system.3 - x = 5
A. 
B. 
C. 
D. 
Convert the repeating decimal to a fraction.0.
A. 
B. 
C. 
D. 