Solve the equation.
+ 
= 4
A. {0}
B. {-2}
C. {
, -2}
D. {2, -2}
Answer: B
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Determine the symmetries of the curve.r = -2 sin ? - 4 cos ?
A. x-axis, y-axis, origin B. y-axis only C. x-axis only D. No symmetry
Solve the problem.The Chicago Men's Shop made the following purchases of dress shirts: 50 shirts at $78.32 in January, 60 shirts at $41.21 in March, 75 shirts at $82.74 in June, and 35 shirts at $61.60 in August. A September inventory found 150 shirts remaining. Find the inventory value using a) weighted average method, b) FIFO Method, and c) LIFO Method. Round final answers to the nearest cent.
A. (a) $10,057.50 (b) $9,698.20 (c) $10,009.90 B. (a) $14,750.10 (b) $11,748.00 (c) $9,240.00 C. (a) $9,895.13 (b) $6,181.50 (c) $12,411.00 D. (a) $10,057.50 (b) $10,009.90 (c) $9,698.20
Solve the equation.(5y + 16)(4y + 17) = 0
A. 
B. 
C. {11, 13}
D. 
Determine the points at which the function is discontinuous. F(x) = 
A. (-?, -1] ? [1, ?) B. (-1, 1) C. (-?, 1] ? [1, ?) D. -1, 1