Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. no solution; ?
B. {(-9, 4)}
C. {(4, 9)}
D. {(5, 8)}
Answer: C
Mathematics
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Use a power-reducing identity to find the exact value of the expression.csc2 (75°)
A. 
B. 
C. 8 - 4
D. 4 - 2
Mathematics
Solve the compound inequality and graph the solution set on a number line. Except for the empty set, express the solution set in interval notation.-16 ? -4x + 4 < -12
A. [4, 5)
B. ?
C. (4, 5]
D. (-?, 4] ? (5, ?)
Mathematics
Determine independence. Answer Yes or No.The table shows the political affiliation of voters in one city and their positions on stronger gun control laws. ?Stronger Gun Control 
Are party affiliation and position on gun control laws independent?
A. Yes B. No
Mathematics
Graph the function.y = - 
A. 
B. 
C. 
D. 
Mathematics