Determine the constant term that must be added to the expression to make it a perfect square.x2 - ax
A. - 
B. - 
C. 
D. 
Answer: D
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Use logarithmic differentiation to find the derivative of y.y = cos x
A. 
B. cos x
C. cos x
D. cos x
Determine ? in decimal degrees, 0° ? ? ? 90°. Round results to an appropriate number of significant digits.cot ? = 1.237
A. 38.950° B. 34.830° C. 38.95° D. 34.83°
Multiply the expressions.(8x + 7)2
A. 8x2 + 49 B. 64x2 + 49 C. 64x2 + 112x + 49 D. 8x2 + 112x + 49
Solve the problem using the information given in the table and the last- in, first-out inventory method. Round dollar amounts to the nearest cent.Find the cost of goods sold. 23 units are in the ending inventory from the units that were purchased first. Beginning inventory: 25 units at $33.33 March: 70 units at $26.98 June: 65 units at $39.63 August: 40 units at $22.33
A. $5424.41 B. $779.79 C. $767.09 D. $6191.50