Determine whether the statement is true or false.Suppose a system contains three inequalities and three unknowns x1, x2, and x3. If the simplex method results in an optimal solution in which the slack variable x4 is greater than zero, this means that at the optimal values of x1, x2, and x3, the first inequality is an equality.
A. True
B. False
Answer: B
Mathematics
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Find the sum of the given infinite geometric series.(6 + 
) + 1 + (6 - 
) + . . .
A. 
B. 
C. 
D. 
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Use the given graph of f(x) = ax2 + bx + c to solve the specified inequality.f(x) < 0
A. x < 0 B. x < 6 C. All real numbers D. No solutions
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Simplify the expression so that no negative exponents appear in the final result. Assume all variables represent nonzero numbers.
A. 
B. 
C. 
D. 7p25
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Evaluate.2xy - x3 ; x = -7, y = 3
A. 299 B. 306 C. 301 D. 293
Mathematics