Factor completely. If the polynomial is prime, state this.20z2 - 3z - 9
A. (20z + 1)(z - 9)
B. (20z - 3)(z + 3)
C. (4z - 3)(5z + 3)
D. (4z + 3)(5z - 3)
Answer: C
Mathematics
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Find the exact value of the expression.tan 345°
A. 
B. 2 + 
C. -2 - 
D. 
Mathematics
Find an equation for the line with the given properties.Perpendicular to the line 5x - 4y = -3; y-intercept = -4
A. 5x - 4y = -20 B. -4x - 5y = 16 C. -4x - 5y = 20 D. 5x - 4y = 16
Mathematics
Solve the problem.Ohm's law relates the current in a circuit, I, in amperes, the voltage of the circuit, V, in volts, and the impedance of the circuit, Z, in ohms, by the formula 
Find V, the voltage of a circuit, if 
and Z = (6 + 4i) ohms.
A. (66 - 34i) volts B. (34 - 66i) volts C. (34 + 66i) volts D. (66 + 34i) volts
Mathematics
Graph the ellipse.4x2 + 5y2 - 40x + 30y + 125 = 0
A. 
B. 
C. 
D. 
Mathematics