Answer:
{0}
Step-by-step explanation:
{0} is not because 0 is not an element of set {1, 2, 3}
The null set is a subset of every set, so Ø is.
A set is a subset of itself.
#11 and #12 have no solutions, #13 has a solution which is 14
{(5,2), (8,9), (2,7),(-5,3)(4,0),(3,11)}<br>
FUNCTION or NOT A FUNCTION
zhenek [66]
Answer:
function
Step-by-step explanation:
cuz each x has exactly 1 y its paired to
9514 1404 393
Answer:
A. 7 seconds
Step-by-step explanation:
We assume your factored equation is something like ...
h(t) = -16t(t -7)(t +2)
The time it takes the ball to reach the ground is the positive value of t that makes a factor zero:
t -7 = 0 ⇒ t = 7
The ball will land on the ground in 7 seconds.
