Write a formula that expresses δ y in terms of δ x . (hint: enter "delta" for δ .) suppose that y = 2.5 y=2.5 when x = 1.5 x=1.5. write a formula that expresses y in terms of x x

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?