Choose the graph that matches the equation.z = -x2 - y2
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. cannot be simplified
B. 
C. x - 10
D. 
Mathematics
Complete the table of values for the given equation.y = -5
A. 0; 0; 0 B. 0; 2; 4 C. 3; 3; 3 D. -5; -5; -5
Mathematics
Evaluate the expression, if possible.(- 64)-2/3
A. 
B. 
C. - 16
D. - 
Mathematics
Use Descartes' rule of signs to find the number of possible positive, negative, and nonreal roots for the following equation.
?
?
A. 1 positive; 1 negative; 7 nonreal B. 1 positive; 0 negative; 8 nonreal C. 0 positive; 1 negative; 8 nonreal D. 0 positive; 0 negative; 9 nonreal E. none of these
Mathematics