Solve the linear programming problem.Maximize and minimize z = 21x + 15y subject to: x ? 0,
y ? 0,
2x + 3y ? 6,
x ? 10,
y ? 5.
A. maximum: 75; minimum: 45
B. maximum: 285; minimum: 30
C. maximum: 285; minimum: 210
D. maximum: 210; minimum: 45
Answer: B
Mathematics
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Reduce the fraction.
A. 
B. 
C. 
D. 
Mathematics
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 8
B. 
C. 33
D. 
Mathematics
Determine the row operation that was used on the first matrix to obtain the second matrix.
, 
What will be an ideal response?
Mathematics
Determine if the sequence is arithmetic, geometric, or neither. If arithmetic or geometric, determine the first term and the common difference or common ratio.
A. neither arithmetic nor geometric
B. Arithmetic; a = - 4, d = 
C. Geometric; a = - 
, r = 
D. Arithmetic; a = - 
, d = 3
Mathematics