Solve the rational inequality.
? 
A. (-2, 7) ? 
B. [-2, 7] ? 
C. [-7, 2] ? 
D. (-7, 2) ? 
Answer: D
Mathematics
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Graph the function.y = -2 cos (4x - ?)
A. 
B. 
C. 
D. 
Mathematics
The graph shows a region of feasible solutions. Find the requested value or values of P over this region.Find the maximum and minimum ofP = 13x - 16y.
A. -96, 0 B. 65, 0 C. 65, -96 D. -63.75, -96
Mathematics
Express the sum using summation notation.8 + 
+ 
+ ... + 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the polynomial or polynomial function for the given value of the variable.-2x3 - 5x2 + 42 for x = -2
A. 26 B. 28 C. 38 D. 68
Mathematics