Find all values that make the rational expression undefined. If the rational expression is defined for all real numbers, so state.
A. z = 9
B. z = -9
C. z = 0
D. Defined for all real numbers
Answer: B
Mathematics
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Refer to this figure to answer the question. Line DH is parallel to line IM. Line BO is perpendicular to line DH. 
m(?IJN) is 49°. What is the measure of ?JEF?
A. 49° B. Can't determine C. 41° D. 131°
Mathematics
Choose the graph that matches the equation. y = 2
A. 
B. 
C. 
D. 
Mathematics
Find the requested value.
{x - 5, if x < 63 - x, if x ? 6
A. 3 B. 1 C. -5 D. -3
Mathematics
Classify the angle as acute, obtuse, right, or straight.
A. Straight B. Acute C. Right D. Obtuse
Mathematics