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Find the altitude if the plane

Altitude The angles of elevation to an air plane from two points A and B on level ground are 71° and 88°,respectively .The points A and B are 5.5 miles apart and the airplaine is east if both points...

finite math

Using digits from this set {1, 2, 3, 4, 5, 6, 7, 8, 9} , how many different 4 digit numbers can be         formed if digits cannot be repeated and the 4 digit number must be odd...

finite math

 Given:   n(U) = 80,  n(A) = 42,  n(AnB) =10,  n(A'uB') =12.     Find  n(B).      

probability

An NBA player makes a successful free-throw 85% of the time.  Find the probability that he is  successful exactly 6 times in 7 attempts...

truth values

Determine the truth value of (p <-> r) -> (p ^ q)  if you are given these truth values for the simple  statements:  p is false, q is true, r is false...

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