Find the area of the geometric figure.Trapezoid
A. 114.45 sq in.
B. 74.9 sq in.
C. 149.8 sq in.
D. 73.5 sq in.
Answer: B
Mathematics
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Solve the problem.When a particular circuit containing a resistor, an inductor, and a capacitor in series is connected to a battery, the current i (in amperes) is given by i = 23e-3t(e2.6t - e-2.6t) where t is the time (in seconds). Find the time at which the maximum current occurs.
A. 1.5 s B. 0.5 s C. 0.6 s D. 1.4 s
Mathematics
Simplify. Assume that all variables represent non-negative real numbers.
A. -2a2b
B. 2
C. 2ab
D. 2ab
Mathematics
Determine whether the matrices are inverses. 
, 
A. No B. Yes
Mathematics
Solve.A $330 chair is on sale at 45% off. What is the discount?
A. $181.50 B. $315.15 C. $14.85 D. $148.50
Mathematics