Agroup of 100 people, some students and some faculty, attended a museum opening. each student paid $10 per person for entrance to the museum and each of the faculty paid $25 per person for entrance. if the total paid, for all 100 people, was $1300, how many students attended the museum opening?

For a school newspaper article, cienna conducted a survey to find out students’ favorite subjects. she polled all the students in mrs. lopez’s advanced dance class. why is her data likely to be skewed? honors dance students are more likely to enjoy dance than students in the general population, so dance may be overrepresented. cienna should have interviewed all the students in the school to get more accurate data. honors dance students are more likely to enjoy dance than students in the general population, so dance will be underrepresented. cienna should have interviewed only every other student in the class to avoid having too many people.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2