Answer:
Step-by-step explanation:
I think the missing equation in your question is: h(t) = -16 
+ 16t + 480
Here is my answer:
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
Answer: The number is 23
Step-by-step explanation:
Let x be the [number]
Rephrase the expression
a number increased by 11 is equal to twice the number decrease by 12
x+11=2x-12
Add 12 on both sides
x+11+12=2x-12+12
x+23=2x
Subtract x on both sides
x+23-x=2x-x
x=23
Hope this helps!! :)
Please let me know if you have any questions
Answer:
Amina practices the piano for 54 minutes each week.
Step-by-step explanation:
45% * 120min = 0.45 * 120min = 9/20 * 120min = 9 * 6min = 54min
If the cosine is 1/2, and the angle is acute, then the angle is 60 degrees. Using the rules for a 30-60-90 right triangle, hyp=2 times the short leg. So 7/2= 3.5.
