Question

a certain college offers free tutoring for nine subjects. here is the tutoring schedule for each subject. - math is offered on both monday and wednesday. - german is offered on monday but not wednesday. - art, bio, econ, and psych are offered on wednesday but not monday. - chem, english, and stats are offered on neither monday nor wednesday. write each set in the indicated form. (a) roster form: {math, german, art, bio, econ, psych} descriptive form: select (b) descriptive form: the set of subjects not offered for tutoring on monday roster form: (c) roster form: {math, art, bio, econ, psych} descriptive form: select

Explanation:

(a) Math and German are offered on Monday; Art, Bio, Econ, Psych are offered on Wednesday. Combined, this set includes all subjects with tutoring on either Monday or Wednesday.
(b) Subjects not offered on Monday exclude Math and German. The remaining subjects are Art, Bio, Econ, Psych, Chem, English, Stats.
(c) Math is offered on both days, and Art, Bio, Econ, Psych are only offered on Wednesday. All these subjects are available for tutoring on Wednesday.

Answer:

(a) Descriptive form: The set of subjects offered for tutoring on Monday or Wednesday
(b) Roster form: {Art, Bio, Econ, Psych, Chem, English, Stats}
(c) Descriptive form: The set of subjects offered for tutoring on Wednesday