Solve the problem.Find the perimeter of the polygon with the following vertices. Round to the nearest hundredth. A(1, 1), B(2, 5), C(5, 4), D(4, 2), E(3, 2)
A. 10.52
B. 12.76
C. 11.52
D. 14.64
Answer: B
Mathematics
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Solve the problem.If the switch is thrown open after the current in an RL circuit has built up to its steady-state value, the decaying current obeys the equation 
How long after the switch is thrown open will it take the current to fall to 
of its original value?
A. -4.60 L/R seconds B. 0.92 L/R seconds C. -4.40 L/R seconds D. 1.12 L/R seconds
Mathematics
Find the center of mass of a thin plate of constant density covering the given region.The region bounded by y = x2 and y = 9
A. 
= 0, 
= 
B. 
= 0, 
= 
C. 
= 0, 
= 
D. 
= 0, 
= 15
Mathematics
Find the area of the triangle.
A. A = 28.75 mm2 B. A = 57.5 mm2 C. A = 8.25 mm2 D. A = 115 mm2
Mathematics
Evaluate the polynomial.-5x + 5for x = 8
A. -80 B. 0 C. -45 D. -35
Mathematics