Jackie is standing on a bridge looking at the river below. She throws a rock over the bridge with an initial velocity of 60 feet per second. If the height, h, of the rock at time t seconds after it was thrown can be modeled by the equation h = -16t^2 + 60t + 72, to the nearest tenth of a second, how long will it take the rock to reach the surface of the water?​

c = 0.429t

step-by-step explanation:

the constant rate at which carlos harvests cassava is 35 minutes per 15 cassavas 15/35 = 0.429 cassava per minute

therefore, an equation that models the number of cassava (c) that harvest carlos in a time (t) is the following:

where t is the time in minutes.

this means that when 35 minutes have elapsed 15 cassava have been harvested, at 70 minutes 30 cassava have been harvested and so on.

you can not solvr this without numbers

i think the answer is b x = 1, y = 35/2