The function f(t) = −5t 2 + 20t + 60 models the approximate height of an object
t seconds after it is launched. how many seconds does it take the object to hit the
ground?

6 seconds.

Step-by-step explanation:

We have been given a function formula that models the approximate height of an object  t seconds after it is launched.

To find the number of seconds it will take the object to hit the ground, we need to find the zeros of our given function.

Upon dividing our equation by -5 we will get,

We will factor our given equation by splitting the middle term as:

Since time cannot be negative, therefore, it will take the object 6 seconds to hit the ground.

y do u put "subscirbe to ence" on a app for ppl who need with their work?

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (