Elan surveyed a random sample of 65 students at his high school. He asked them which subject is their first class on Mondays. There are 894 students in his school.
First Class Percent of Students
English
17%
Math
28%
History
40%
Science
15%
Choose two inferences that can be made from the results.
A. Approximately 17% of all students in the city have English first on Mondays.
O O
B. Approximately 28% of the students at Elan's school have Math first on Mondays.
Approximately 40% of the students at Elan's school do not have History first on Mondays,
D. Approximately 85% of the students at Elan's school do not have Science first on Mondays.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle