After how many seconds is needed for a thrown ball to reach a 14-cm distance if its distance is given by the relation d=10+40t-5t^2?(t=time in second)

okay, if you need all you need to do is ask, and i'll do my best to assist you.

step-by-step explanation:

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)

well what did you do it matters what you did : )

step-by-step explanation:

its kinda hard to answer this when we dont have all the information that we need.