Arocket was launched into the air from a platform above the ground. the height, in feet, of the rocket above the ground t seconds after being thrown can be determined by the expression -16t+64t+80. what does the 80 in the expression represent?

80 represents 80 ft which is the height of the platform the rocket was launched from.

x= 149. 24+7=31. 180-31=149

your welcome

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c