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ddd [48]
2 years ago
13

A pipe consists of two concentric cylinders, with the inner cylinder hollowed out. Describe how you could calculate the volume o

f the solid pipe. Type a formula for the volume.
Mathematics
1 answer:
elena-14-01-66 [18.8K]2 years ago
4 0

Answer:

cylinder formula

Step-by-step explanation:

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magazine provided results from a poll of adults who were asked to identify their favorite pie. Among the ​respondents, ​% chose
Alex73 [517]

Complete Question

A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie. Among the 500 ​respondents, 12 ​% chose chocolate​ pie, and the margin of error was given as plus or minus 5 percentage points.What values do ​ \r p ,  \ \r q, ​n, E, and p​ represent? If the confidence level is 90​%, what is the value of \alpha ​?

Answer:

a

   \r p is the sample proportion   \r  p  =  0.12

   n is the  sample size is  n  =  500

   E is the  margin of error is E  =  0.05

   \r  q represents the proportion of those that did not chose chocolate​ pie i.e                        \r  q  =  1-  \r p

b

   \alpha  = 10\%

Step-by-step explanation:

Here

    \r p is the sample proportion   \r  p  =  0.12

   n is the  sample size is  n  =  500

    \r  q represents the proportion of those that did not chose chocolate​ pie i.e  

      \r  q  =  1-  \r p

      \r  q  =  1-  0.12

      \r  q  = 0.88

     E is the  margin of error is E  =  0.05

Generally \alpha is the level of significance and it value is mathematically evaluated as

     \alpha  = ( 100 -  C  )\%

Where  C is the confidence level which is given in this question as  C =  90  \%

So  

    \alpha  = ( 100 -  90  )\%

    \alpha  = 10\%

5 0
3 years ago
I need help!! Please ASAP! will mark brainliest
weeeeeb [17]

Answer: I wanna go with 20,000

Step-by-step explanation:

7 0
3 years ago
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What is the equation of a line, in general form, that passes through the point (1, -2) and has a slope of 1/3.
slavikrds [6]
Y=1/3x+c as 1/3 is the gradient/slope
Plug in the coordinates into the equation
-2= 1/3*(1) +c
C=-2-1/3
C=-7/3
Y= 1/3x-7/3
5 0
2 years ago
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Using the slope formula, determine the slope of the two points.
Lelechka [254]
The slope formula is is rise over run or y2-y1/x2-x1

If you plug in those numbers you will get

(-1)-(-4)
———
1-(-2)

Simplify it and you get

3
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3

So the slope is 1
5 0
2 years ago
I need help trying to find the answer to -4(x-1)=-3x+31​
wlad13 [49]

Answer:

x=27

Step-by-step explanation:

-4x+4=-3x+31

4=x+31

27=x

3 0
3 years ago
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