Find sin (a+b) when sina=(3/5) with 90 degrees < a < 270 degrees, and if cosb=(8/17) with 0 degrees < b< 180 degrees

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

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

Dagne measures and finds that she can do a vertical jump that is 27.5% of her height.if dagne is 48 inches tall, how high can she jump? enter your answer in the box. inches