Let l be a context-free language. prove that there exists an integer p 1, such that the following is true: for every string s in l with 1s2 p, there exists a string s in l such that sis1 s is+p.

Arandom sample of 150 high school students were asked whether they have a job. the results are shown in the table. have a job do not have a job male 48 35 female 41 26 select a ord or phrase from the drop-down menus to correctly complete the statements describing the association.

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

What is the average diastolic blood pressure for adults