Factor the expression completely, if possible.z2 - 6z + 9
A. (z - 3)2
B. (z - 3)(z + 3)
C. (z + 3)2
D. (z + 9)(z + 1)
Answer: A
Mathematics
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Find the dB gain of an amplifier if the output voltage is 30 volts when the input voltage is 0.5 volt. Round your answer to the nearest hundredth.
A. 3.08 dB B. 59.08 dB C. 1.78 dB D. 35.56 dB E. None of these
Mathematics
Find the slope and the y-intercept of the given line.y = -4x + 7
A. -4, (0, -7) B. 7, (0, -4) C. -7, (0, -4) D. -4, (0, 7)
Mathematics
Solve the problem.A wheel is rotating at 5 radians/sec, and the wheel has a 83-inch diameter. To the nearest foot, what is the speed of a point on the rim in ft/min?
A. 1038 ft/min B. 1028 ft/min C. 1043 ft/min D. 1033 ft/min
Mathematics
Find the derivative of the function.
?
?
A. 
B. 
C. 
D. 
Mathematics