Multiply or divide as indicated.
? 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.When an alternating current passes through a series RLC circuit, the voltage and current are out of phase by angle ?. Here ? = tan-1[(XL - XC)/R], where XL and XC are the reactances of the inductor and capacitor, respectively, and R is the resistance. Find d?/dR for constant XL and XC.
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Use properties to graph the quadratic equation: y = x2 - x - 3
A. I B. II C. III D. IV
Mathematics
Write the ordered pair for each point shown in the xy-plane.
A. C(-4, 5), D(4, -5) B. C(-4, 5), D(-5, 4) C. C(-4, -5), D(5, -5) D. C(5, 8), D(-5, 4)
Mathematics
Solve the equation.
+ 5 = x
A. x = 2, 9 B. x = 9, 18 C. x = 9 D. x = 2
Mathematics