Find the area of the triangle. If necessary, round the answer to two decimal places.a = 14, b = 32, c = 26
A. 5280.01
B. 181.99
C. 177.99
D. 3219.69
Answer: C
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Solve the problem.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
where c is cost and x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 20 watches B. 36 watches C. 73 watches D. 39 watches
Graph the system of inequalities.3x - 2y ? 6x - 1 > 0
A. 
B. 
C. 
D. 
Tell whether the relation is reflexive, symmetric, or transitive on the set of subsets of a nonempty set. Also tell whether the relation is an equivalence relation."Is disjoint with"
A. None; not an equivalence relation B. Reflexive; not an equivalence relation C. Symmetric; not an equivalence relation D. Transitive and symmetric; not an equivalence relation
Solve the problem.A small farm field is a square measuring 320 ft on a side. What is the perimeter of the field? If you double the length of each side of the field, what is the new perimeter?
A. 640 ft, 2560 ft B. 320 ft, 1280 ft C. 1280 ft, 2560 ft D. 640 ft, 1280 ft