The coordinates of the center of a circle and a point on the circle are given. Find the radius of the circle.Center: (5, 0), point on the circle: (5, -3)
A. 0
B. -3
C. 9
D. 3
Answer: D
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Find the expression for the voltage across a 5.0-mH inductor in the circuit.[An inductor in an electric circuit is a coil of wire in which the voltage is affected by a changing current. The voltage caused by the changing current is given by VL = L(di/dt) where L is the inductance in H.]
A. 0.18? cos(120?t + ?/5) B. 36? cos(120?t + ?/5) C. 0.0015 sin(120?t + ?/5) D. 0.0015 cos(120?t + ?/5)
Factor by grouping.2y - 8 + xy - 4x
A. (x - 4)(y + 2) B. (y - 4x)(2 + x) C. (y - 4)(2 + x) D. (x - 4)(2y + x)
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A. $675.00 B. $495.00 C. $360.00 D. $450.00
Write as a single interval.(-?, 5) ? (2, ?)
A. ? B. (2, 5) C. (2, ?) D. (-?, ?)