The height, h meters, of a falling object is related to the time, t seconds, the object has been falling by the formula h= -4.9 t^2 + d where d meters is the initial height of the object above the ground. The Bankers Hall building in Calgary is 196m tall.

Express the time an object takes to reach the ground from this height as an exact number of seconds.

(PLEASE HELP DUE TMW)
(Thank you in advance:)) )

21

jk it's 20

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a