ifA={1,2} and B={4,5} find A×B and B×A. Also find n A×B, n(B×A). prove that A×B= B×A but n (A×B) =n (B×A)=n(A)×n(B).​

Asinusoidal function whose frequency is 1/6pi

Amotorboat maintained a constant speed of 12 miles per hour relative to the water in going 45 miles upstream and then returning. the total time for the trip was 8.0 hours. use this information to find the speed of the current.

Kilgore trout creates a new scale to diagnose depression. however, his scale only assesses one symptom of depression while ignoring others. which of the following is his new scale most likely lacking? a) test-retest reliability b) discriminant validity c) criterion validity d) alternate-forms reliability e) content validity f) none of the above