Write the vector in terms of the unit vectors i and j.v = 
A. -7 + 5j
B. -7i + 5j
C. (-7 + i) + 5j
D. -7i + 5
Answer: B
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The diagram shows two binary sequences about to be manipulated by passing through a microchip's series of gates. Provide the results of these computer manipulations, designated by ? in the diagram. 
A. 
B. 
C. 
D. 
Find the reference angle for the given angle.42°
A. 42° B. 132° C. 48° D. 138°
Graph the parametric equation for the given interval. Add arrows to show how the curve is traced out. x = 
, y = t; 0 ? t ? 4
A. 
B. 
C. 
D. 
Solve the problem.Sound levels in decibels can be computed by f(x) = 10log(x/So), where x is the intensity of the sound in watts per square meter and So = 1.00 x 10-12 watt/m2. A certain noise produces 9.89 x 10-5 watt/m2 of power. What is the decibel level of this noise? (Round to the nearest decibel)
A. 184 decibels B. 80 decibels C. 8 decibels D. 70 decibels