Answer:
Step-by-step explanation:Since we want to know how much time elapsed since the object was launched until it ht the ground. At the ground, the height is 0.
Therefore the equation h(t) = 80t – 16t2 becomes 0= 80t – 16t2
Solving the equation for t gives 80t =16t2 or 16t=80 or t=5sec
The object hits the ground 5 seconds after it is launched.
Answer: your answer would be
x-30y=100 and 10y = x - 20
Step-by-step explanation:
Answer: Not really sure what you mean by algebra tiles but I do know that x=2.
A is the correct answer I hope that helps :)
