Losses in a long telephone line reduce a 20-watt input signal to an output of 4 watts. Find the db gain. (Because it is a loss, the "gain" will be negative.) Round your answer to two decimal places.
?
A. -14.00
B. -6.94
C. -14.18
D. -6.99
E. none of these
Answer: D
Mathematics
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Provide an appropriate response.The number of times an inventory is sold and replaced during a given period is referred to as inventory turnover.
A. True B. False
Mathematics
Simplify the expression.
A. x11y7 B. -x5y2 C. x5 + y2 D. x5y2
Mathematics
Find the unit vector having the same direction as v.v = -12i + 5j
A. u = - 
i + 
j
B. u = -156i + 65j
C. u = - 
i + 
j
D. u = - 
i + 
j
Mathematics
Solve the problem.The length of a table is 15 inches more than its width. If the area of the table is 
inches, what is its length?
A. 49 in. B. 34 in. C. 19 in. D. 68 in.
Mathematics