Find the product.(4 cot x - tan x)2
A. 17 cot2x - 8
B. 16 cot2x - 8 cot x + tan2x
C. 16 cot2x + tan2x
D. 16 cot2x - 8 + tan2x
Answer: D
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Solve the problem.Find parametric equations for the normal line to the surface 
at the point 
A. 
B. 
C. 
D. 
Find the center of mass of a thin plate of constant density covering the given region.The region bounded by the x-axis and the semicircle y = 
A. 
= 
, 
= 0
B. 
= 
, 
= 
C. 
= 0, 
= 
D. 
= 0, 
= 
Solve the problem.Prepare a balance sheet for Mullen's Hardware for December 31 of last year. The company assets are cash 
and merchandise inventory $80,000. The liabilities are 
and wages payable $9000. The owner's capital is $101,000.
A. Mullen's Hardware Balance Sheet Total assets: $128,000 Total liabilities: $27,000 Total liabilities and owner's equity: $128,000 B. Mullen's Hardware Balance Sheet Total assets: $80,000 Total liabilities: $18,000 Total liabilities and owner's equity: $101,000 C. Mullen's Hardware Balance Sheet Total assets: $128,000 Total liabilities: $18,000 Total liabilities and owner's equity: $128,000 D. Mullen's Hardware Balance Sheet Total assets: $128,000 Total liabilities: $9000 Total liabilities and owner's equity: $9000
Graph the function over a one-period interval.y = 3 sin (x - ?) + 4
A. 
B. 
C. 
D. 