Mathematics, 27.02.2021 14:00 angelica7773
A teacher decides to survey the students in her classes to find out their opinion on the new menu in the cafeteria. Identify the population and the sample. Give a reason why the sample could be biased?
Answers: 2
Mathematics, 21.06.2019 15:00
Which sum or difference identity would you use to verify that cos (180Ā° - ā
) = -cos ā
? a. sin (Ī± -Ī²) = sin Ī± cos Ī² ā cos Ī± sin Ī² b. cos (Ī± -Ī²) = cos Ī± cos Ī² ā sin Ī± sin Ī² c. cos (Ī± -Ī²) = cos Ī± cos Ī² + sin Ī± sin Ī² d. sin (Ī± + Ī²) = sin Ī± cos Ī² + cos Ī± sin Ī²
Answers: 2
Mathematics, 21.06.2019 17:00
Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone
Answers: 1
Mathematics, 21.06.2019 20:00
Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?
Answers: 1
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