Solve the system of equations.
A. x = 1, y = 2, z = 4
B. x = 4, y = 1, z = 2
C. x = 1, y = 4, z = 2
D. x = 4, y = 2, z = 1
Answer: A
Mathematics
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; (5, -4)
A. (20, 4)
B. 
C. 
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Write the inequality in words.
-3 < x < -2 A) x is between -3 and -2 B) x is between -3 and -2, including -2 C) x is between -3 and -2, including -3 D) x is between -3 and -2, including -3 and -2 E) x is greater than -3
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Use a half-angle formula to find the exact value of the expression.tan 165°
A. -
- 2
B. 
- 2
C. 
+ 2
D. -
+ 2
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Combine the following, if possible.17
+ 9
- 
+ 13
A. 17 + 22
B. 39
C. 17
+ 22
D. 16
+ 22
Mathematics