Solve each of the following systems of equations. If the system is inconsistent or dependent, say so.x + 
y = 
x - y = - 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Use identities to simplify the expression. Do not use a calculator.sin 22.5°cos 22.5°
A. 
B. 
C. 
D. 
Mathematics
Graph the circle.x2 + y2 - 8x - 10y + 37 = 0
A. 
B. 
C. 
D. 
Mathematics
Tell whether the angle is acute, right, obtuse, or straight.
A. Right B. Acute C. Straight D. Obtuse
Mathematics
Write a positive or negative integer that describes the situation.$396 loss
A. -396 B. 396
Mathematics