Given the value of cos 60° ≈ 0.5, enter the sine of a complementary angle. Use an expression relating trigonometric ratios of complementary angles.

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?

Find the value of x. give reasons to justify your solutions! c ∈ ae

Find the amplitude of a sinusoidal function that models this temperature variation