Which trigonometric ratio will not have the same value as sin a

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest