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Marysya12 [62]
2 years ago
12

Consider the following formula used to find the volume of a cone.

Mathematics
2 answers:
zhuklara [117]2 years ago
6 0

Answer:

\hookrightarrow \: { \rm{V = \pi {r}^{2}  \frac{h}{3} }} \\

• simplify making h the subject:

{ \rm{3V = \pi {r}^{2} h}} \\  \\ { \boxed{ \boxed{ \rm{h =  \frac{3V}{\pi {r}^{2} } \:  }}}}

frutty [35]2 years ago
4 0

\\ \sf\longmapsto V=\pi r^2\dfrac{h}{3}

\\ \sf\longmapsto \dfrac{h}{3}=\dfrac{V}{\pi r^2}

\\ \sf\longmapsto h=\dfrac{3V}{\pi r^2}

Option B

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Which of the following is an example of quantitative data? A the player’s number on a baseball uniform B the serial number on a
Taya2010 [7]

Answer:

The number of people in a waiting line is a quantitative data as we can count them.

Step-by-step explanation:

Consider the provided information.

The value of quantitative data can be determined by counting or measuring something.

Now consider the provided options.

The player’s number on a baseball uniform, the serial number on a one-dollar bill and the part number of an inventory item is not a quantitative data because we can't  measure them.

The number of people in a waiting line is a quantitative data as we can count them.

7 0
3 years ago
A pharmaceutical company is developing a new oral medication for the treatment of psoriasis, a skin disease marked by red, itchy
xeze [42]

Let's say we had a sample of 100 people. We'll split them into two equal groups of 50 each. The two groups will be the treatment and control groups. The treatment group, aka experimental group, is where the actual drug is given. The control group is where the fake drug is given. People in the control group must not know the pill is fake. For more info, check out the placebo effect. In short, this is when a person takes a fake pill and thinks they get better, and that positive mentality helps them actually get better.  

If both the treatment and control groups improve (on average) together, then that means the fake pill is just as good as the real thing. Consequently, it means the real pill isn't effective at all. If on the other hand the experimental group does better overall compared to the control group, then we can see that the real pill is doing what it's intended to do. Of course, there are a lot of complicated factors involved, as there is with anything dealing with medicine. I haven't mentioned anything about side effects or things of that nature. In this simplified viewpoint of the world, we're only considering the one factor of whether or not the drug clears up the psoriasis on the skin.

To make things fair, it's best to randomly generate numbers so that you randomly assign people into each group. That way you have representative samples. Also, when drawing the sample of 100 people, make sure that's as random as possible to help represent the population as best as possible. The fact that the people in the control group not knowing that they are taking the fake pill means we have a single blind experiment. A double blind experiment is when even the researchers are not sure who is taking the real pill vs the fake pill. Double blind experiments are encouraged to prevent the researcher's bias from affecting the results.

To keep participants from knowing whether or not they are in the control group, the common solution is to provide a sugar pill. The pill will not cause any side effects and will not cause any improvements to health. It's simply sugar. To the participant, it seems like the real thing since they can't taste the difference or detect anything seems different.

6 0
3 years ago
Read 2 more answers
The current temperature is 20 degrees. This is 6 degrees less than twice the temperature that it was 6 hours ago. What was the t
mestny [16]
2x - 6 = 20
2x = 20 + 6
2x = 26
x = 26/2
x = 13 <==
5 0
3 years ago
Write each statement as an algebraic expression.
12345 [234]
Just go through it phrase by phrase by phrase - one step at a time.

2*(       )
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6 0
3 years ago
mary lou is twice geoge's and kate is two years younger than george the sum of all of their ages is 46 how old is everyone​
saw5 [17]

Answer:

George is 12, Mary Lou is 24 and Kate is 10.

Step-by-step explanation:

To find these, start by setting George's age as x. This means that we can model Mary Lou's age as 2x, since she is twice as old. We can also model Kate's age as x - 2 since she is two years younger. Now we can add these 3 together and set equal to 46

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This means that George is 12.

Mary Lou = 2x

Mary Lou = 2(12)

Mary Lou = 24

Kate = x - 2

Kate = 12 - 2

Kate = 10

3 0
3 years ago
Read 2 more answers
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