The height in feet of a bottle rocket is given by h(t) = 160t - 16t where t is the time in seconds how long will it take for the rocket to return to the ground. What is the height after 2 seconds

a.) t = 16 seconds

b.) h(2) = 256 feet.

Step-by-step explanation:

a.)Bottle rocket height in feet is given by h(t)  = 160t - 16.

When the rocket returns to the ground its height will be zero.

Therefore we can write the equation above as  

 160t - 16 = 0

⇒16t ( 16 - t) = 0

On solving the equation above we get two values for t which are

t = 0 seconds  and t = 16 seconds.

We ignore t = 0 seconds because this is the starting time.

Therefore we can say that the rocket returns to the ground at time t = 16 seconds.

b.) The height in feet after 2 seconds will be given by

  h(2 seconds)  = (160 ×2)  -  (16 × ) = 320 - 64  = 256 feet.

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.