Solve. Round to the nearest hundredth, if necessary.According to Ohm's law, the electric current I, in amperes, in a circuit varies directly as the voltage V. When 17 volts are applied, the current is 4 amperes. What is the current when 21 volts are applied?
A. 4.94 amperes
B. 42 amperes
C. 4.25 amperes
D. 89.25 amperes
Answer: A
Mathematics
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A series resonant circuit has Vin = 9.0 V, Q = 6, and fr = 150 KHz. Find BW and VO at f1.
a. BW = 25.0 KHz, VO = 6.4 V b. BW = 20.8 KHz, VO = 9.0 V c. BW = 29.2 KHz, VO = 9.0 V d. BW = 230 KHz, VO = 6.4 V e. BW = 277 KHz, VO = 4.5 V
Mathematics
Graph the one-to-one function as a solid curve and its inverse as a dashed curve on the same axes.y = x3 + 3
A. 
B. 
C. 
D. 
Mathematics
Use properties of logarithms to write the expression in terms of logarithms of x, y, z.log4 
A. 3 log4 x - 
log4 yz4
B. 3 log4 x - 
log4 y - 2 log4 z
C. 3 log4 x - 2 log4 y + 2 log4 z
D. 
Mathematics
Solve.81x2 + 64y2 = 51848y - 9x = 72
A. (0, 8), (0, -9) B. (0, -8), (9, 0) C. (0, -9), (8, 0) D. (0, 9), (-8,0)
Mathematics