Change the complex number to rectangular form.(cos 20° + j sin 20°)
A. 0.940 + 0.342j
B. 20.000 + j
C. 0.408 + 0.913j
D. 0.342 + 0.940j
Answer: A
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Graph the linear function and give the domain and the range. If the function is a constant function, identify it as such.h(x) = 3x
A. D = (-?, ?), R = (-?, ?)
B. D = (-?, ?), R = (-?, ?)
C. D = (-?, ?), R = (-?, ?)
D. D = (-?, ?), R = (-?, ?)
Simplify the rational expression. If the expression is already in simplest form, state this as your answer.
A. 
B. 
C. 
D. 
Solve the problem.The maximum number of volts, E, that can be placed across a resistor is given by the formula 
where P is the number of watts of power that the resistor can absorb and R is the resistance of the resistor in ohms. If a 2-watt resistor has a resistance of 18 ohms, find the largest number of volts of electricity that could be placed across the resistor.
A. 12 volts B. 6 volts C. 36 volts D. 3 volts
Solve using the zero-factor theorem.(4y - 8)2(y + 8) = 0
A. -2, 8
B. 
, -8
C. 2, -8
D. 2, 0