Given sin k = -√3/2 , and 450° <k< 680°, the smallest possible value for k must be degrees. Any one know this stuff?
it's grade 11 Trig

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

Explain how to graph a scatterplot and its regression line using a regression calculator.