Solve the problem.Open parallel transmission lines have a characteristic impedance given by  Write the expression on the right side as the logarithm of a single quantity.

A. log 10 (a/b)
B. 252 log 10 (a/b)
C. log 10 (a - b)252
D. log 10 (a/b)252


Answer: D

Mathematics

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Solve the problem.The sum of the measures of the angles in any triangle is 180° . In triangle ABC, angles A and B have the same measure, while angle C is 9° larger than each of the other two angles. Find the measure of 

A. 123° B. 114° C. 57° D. 66°

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Find the sum and simplify the answer. 

A.
B.
C.
D.

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