The set of all odd 2-digit numbers that have the digit 3 in them

Step-by-step explanation:

I think the missing equation in your question is: h(t) = -16 + 16t + 480

Here is my

As we know that the vertex form of a parabola, y=a + k where(h,k) is the vertex

h(t) = -16 + 16t + 480

= -16 ( + 480  

= -16 + 484

So the vertex is ( , 484)

a. It take for Joseph second to reach his maximum height

b. The highest point that Joseph reached is the vertex of the function, it is 484 ft

c. Joseph hit the water after how many seconds?

<=> h(t) = 0

<=>  -16 + 16t + 480  = 0

<=> t = second = 6 sec

Hope it will find you well