Find the production matrix for the input-output and demand matrices.A = 
, D = 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Rewrite the rational expression with the given denominator.
= 
A. 
B. 
C. 
D. 
Mathematics
Solve the polynomial inequality. Express the solution using interval notation.x3 ? -10x2 - 25x
A. (-?, 0] B. [-5, 0] C. (-?, 0] ? [5, ?) D. (-?, -5] ? [0, ?)
Mathematics
What part of the set of objects is shaded?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Students in a math class took a final exam. They took equivalent forms of the exam in monthly intervals thereafter. The average score S(t), in percent, after t months was found to be given by 
.Find S'(t).
A. S'(t) = - 
B. S'(t) = 
C. S'(t) = - 17 ln 
D. S'(t) = 70 - 
Mathematics