Use a negative-angle identity to write an equivalent trigonometric expression involving a positive angle.cot 
A. -cot 
B. 1 - cot 
C. cot 
D. tan 
Answer: A
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A feasible region and its vertices are shown. Find the specified maximum or minimum value of the given objective function.
Maximum of K = 3x + y
A. 25 B. 39 C. 29 D. 7
Provide an appropriate response.The repayment of a loan in equal installments that are applied to principal and interest over a specific period of time is called:
A. adjustable rate mortgage B. amortization C. constant mortgage D. conventional mortgage
Solve the system by the addition method.x2 - y2 = 9x2 + y2 = 51
A. {(
, 
), (-
, 
)}
B. {(
, 
), (-
, -
)}
C. {(0, 0)}
D. {(
, 
), (-
, 
), (
, -
), (-
, -
)}
Solve the problem.The product of 8 and the square root of some number is equal to that number decreased by 128. Find the number.
A. 128 B. 256 C. 192 D. 512