Solve the problem.The total sales in dollars of some small businesses fluctuates according to the equation 
where x is the time in months, with x = 1 corresponding to January, 
and 
Determine the month with the greatest total sales and give the sales in that month.
A. September; $2800
B. March; $9400
C. June; $6100
D. December; $9400
Answer: B
Mathematics
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Solve.|19x - 9| < -2
A. 
B. 
? 
C. (-?, ?)
D. No solution
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cot ? = -3, sec ? > 0Find sin 
.
A. 
B. - 
C. 
D. 
Mathematics
Factor completely the polynomial. Indicate any that are not factorable using integers.x2 + 16xy + 28y2
A. (x + 2y)(x - 14y) B. (x + 2y)(x + 14y) C. (x - 2y)(x + 14y) D. (x - 2y)(x - 14y) E. not factorable
Mathematics
Find dy/dx by implicit differentiation.xy + x + y = x2y2
A. 
B. 
C. 
D. 
Mathematics