Assume a normal distribution and that the average phone call in a certain town lasted 12 min, with a standard deviation of 2 mi
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Answer:
Step-by-step explanation:
The angle measure of a straight line is (180) degrees As given in the picture, line (AC) is a straight line, thus its angle measure is (180) degrees. Angles (ABD) and (DBC) make up line (AC). Therefore, one can conclude that the sum of angles (ABD) and (DBC) is (180) degrees. Form an equation, simplify and use inverse operations to solve for the unknown parameter (q).
Substitute for the angle measures,
Simplify,
Inverse operations,