Due to given condition we can conclude:
H = 2D
where D is diameter of base and H height of cone
Volume of cone is calculated by:
V = B*H = r^2*pi*H
Now we need to express H in terms of r. H = 2D = 2*2*r because D = 2r
V = r^2*pi*4r = 4r^3*pi
The constant of proportionality is 45
I can’t help you with the second Q but,
The third is 45h= m
Answer:0.231
Step-by-step explanation:
Answer:
D) y=-5/2x; y=-20
Step-by-step explanation:
If y varies directly with x, then y=kx where k is our proportionality constant
Therefore, since y=-5 when x=2, we have -5=k(2) where k=-5/2
This means that when x=8, y=(-5/2)(8)=-20, making choice D correct
Samples simply refer to a dataset that represents the overall population.
The term used to describe the type of survey is that, it is a <em>voluntary response sample</em>.
From the question, we understand that the survey question was posted online to internet users.
This means that:
- The respondents are not selected
- The respondents are not a population (<em>because not all internet user would respond)</em>
However, users that choose to respond do so at their own will (voluntarily).
Hence, the type of survey is <em>(a) a voluntary response sample</em>
Read more about samples and surveys at:
brainly.com/question/24564273
