De 100 personas se observa: 28 estudian alemán, 30 estudian inglés, 42 estudian francés, 5 alemán y francés, 3 de los tres idiomas, 10 inglés y francés, 8 inglés y alemán ¿Cuántas personas no estudian ninguno de los tres idiomas?

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x