The area of the cylinder is a function of its height (h) and radius, (
)
The exact value of h is: 
The given parameters are:
The surface area of a cylinder is calculated as:
Substitute values for Area
Divide through by pi
Substitute value for r
Collect like terms
Make h the subject
Rationalize
Hence, the exact value of h is:
Read more about surface areas t:
brainly.com/question/25131428
Answer:
Yup!
Step-by-step explanation:
Answer:
It's correct
Step-by-step explanation:
Good job! arcsin(0.9659) is indeed 75 degrees
Answer:
C. (8, 2)
Step-by-step explanation:
To find which point is not on the graph, find which set of coordinates makes the equation incorrect.
When plugged into the equation, the point (8, 2) makes it incorrect:
y = 10 + x
2 = 10 + 8
2 = 18
2 
18
The equation is incorrect because 2 is not equal to 18.
So, the point that is not on the graph is C. (8, 2)
Part 1:
For this case we must see in the graph the axis of symmetry of the given parabola.
We have then that the axis of symmetry is the vertical line t = 2.
Answer:
The height of the javelin above the ground is symmetric about the line t = 2 seconds:
Part 2:
For this case, we must see the time t for which the javelin reaches a height of 20 feet for the first time.
We then have that when evaluating t = 1, the function is h (1) = 20. To do this, just look at the graph.
Then, we must observe the moment when it returns to be 20 feet above the ground.
For this, observing the graph we see that:
h (3) = 20 feet
Therefore, a height of 20 feet is again reached in 3 seconds.
Answer:
The javelin is 20 feet above the ground for the first time at t = 1 second and again at t = 3 seconds
