Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Answer: B
Mathematics
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Solve the problem.A piece of molding 185 cm long is to be cut to form a rectangular picture frame. What dimensions will enclose the largest area?
A. 13.6 cm × 13.6 cm B. 13.6 cm × 46.25 cm C. 37 cm × 37 cm D. 46.25 cm × 46.25 cm
Mathematics
Solve the problem.
= 18
A. 2.9373 B. 1.9482 C. 1 D. 2.9092
Mathematics
Graph the system of inequalities. Shade the region that represents the solution set.x2 + y2 ? 81x + y > 4
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality. Write the solution set in interval notation.
t - 
t > t - 
A. 
B. (0, ?)
C. 
D. (-5, ?)
Mathematics