Answer:
When the ball hit the ground, the height of the ball will be zero. So using the value of h(x) as zero in the given equation, we can find the time in which the ball will hit the ground.
0 = -(x-2)^2 + 16
(x-2)^2 = 16
x-2 = 16
x-2 = 4
x = 6
This means the ball will hit the ground 6 seconds after Amir threw it.
Step-by-step explanation:

We will use trigonometric identities to solve this. I will use θ (theta) for the angle.
First of all, we know that cotθ = 1/tanθ. This is a trigonometric identity.
We can replace cotθ in the expression with 1/tanθ.

Simplify: 1/tanθ * tanθ = tanθ/tanθ = 1
So now, we have:

Next, we also know that secθ = 1/cosθ. This is another trigonometric identity.
We can replace secθ with 1/cosθ in our expression.

Simplify:

Our third trigonometric identity that we will use is tanθ = sinθ/cosθ.
We can replace sinθ/cosθ with tanθ.
Now we have as our final answer:

Hope this helps!
x-5= 0
move -5 to the other side
sign changes from -5 to +5
x-5+5= 0+5
x= 5
x-6= 0
x-6+6= 0+6
x= 6
Answer: B. 5 and 6
Answer:
See Below
Step-by-step explanation:
1)√8 √10 √15
2)√3/16 √3/4
3)
0.25 R
0.25 R
0.33 R
4)
23 R
pi IR
√400 R
(√36)/2 R if its √(36/2) then IR
5)
pi
√8
Hope this helped!
3÷3×7÷9-2÷3×9÷9
Step-by-step explanation:
3×7=21
3×9=27
21÷27=7÷9
2×9=18
3×9=27
18÷27=2÷3
7÷9-2÷3=5÷6