Answer:
When increasing the radius 3 times the volume increases 9 times and when it is reduced to a third the volume decreases 9 times
Step-by-step explanation:
We have that the formula for the volume of a cone is:
Vc = pi * (r ^ 2) * h
We first calculate the original volume, where the radius is 2 and the height is 9, replacing:
Vc = 3.14 * (2 ^ 2) * 9
Vc = 113.04
Now if the radius is tripled it would be: 2 * 3 = 6, the radius would be 6, replacing:
Vc = 3.14 * (6 ^ 2) * 9
Vc = 1017.36
If we compare:
1017.36 / 113.04 = 9
This means that when the radius is tripled, the volume increases 9 times.
When if re reduces to a third the radius would be: 2/3, replacing:
Vc = 3.14 * ((2/3) ^ 2) * 9
Vc = 12.56
113.04 / 12.56 = 9
Which means that by reducing it to a third the volume becomes 9 times smaller.
Answer:
The answer is B I am on the time for learning format so It may differ but for me it's B
Step-by-step explanation:
Answer:42x5=210/14=15
Step-by-step explanation:Each student would get 15 pencils
Answer:
-8 ≤ x ≤ - 6
2 ≤ x ≤ 6
Step-by-step explanation:
Increasing part of the function can be easily determined from the graph.
Note that increasing function means for each successive values of 'x', the values of 'y' keep increasing.
From the graph, we see that the function is increasing in the interval 
Between -6 and -4, the graph is constant and takes the value 4.
After that it decreases till x = -2 until it becomes a constant function again on x = 2.
Then, it again increases from x = 2 till x = 6. This is represented by the interval
.
Then it again decreases.
So, OPTION A and C are the answers.
Answer:
4 to 12 or 1 to 3
Step-by-step explanation:
