Use the figure below to answer the following question.
What is the power output when the power gain is 20 db?
A. 200 mW
B. 100 mW
C. 1000 mW
D. 700 mW
E. 400 mW
Answer: D
Mathematics
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Represent the quantity by an integer.$125 loss
A. -125 B. 125
Mathematics
Find an equation of the line having the given slope and containing the given point. m = 7; (0, -4)
A. y = 7x + 4 B. y = -7x - 2 C. y = 7x + 6 D. y = 7x - 4
Mathematics
Use the quadratic formula or graphing methods to solve the inequality.2x2 + 10x + 4 ? 0
A. x ? 
? -4.562 or x ? 
? -0.438
B. x ? 
? -0.438
C. x ? 
? -4.562
D. 
? -4.562 ? x ? 
? -0.438
Mathematics
Find the equation of the axis of symmetry of the parabola.y = -2x2 + 16x - 33
A. x = -4 B. x = -1 C. x = 1 D. x = 4
Mathematics