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Anna [14]
3 years ago
11

This container is composed of a right circular cylinder and a right circular cone. The diameter is 20, the height of the cylinde

r is 9, and the slant height of the cone is 16. Find the surface area
Mathematics
1 answer:
kupik [55]3 years ago
3 0

Answer:

<h2> Total -CSA= 1068.28</h2>

Step-by-step explanation:

This problem is on the mensuration of solids, a cylinder and a cone combined (a frustum)

We are required to solve for the total curve surface areas both solids

hence the curve surface area (henceforth CSA) of a cylinder is given as

CSA-cylinder=2\pi rh

CSA-cone= \pi rl

Total CSA= 2\pi rh+\pi rl

Given data

diameter d= 20

radius = d/2= 20/2= 10

height of cylinder h= 9

slant height of cone l= 16

substituting our data into the expression we have

Total -CSA= 2*\pi *10*9+\pi *10*16\\\\Total -CSA= 565.56+502.72\\\Total -CSA= 1068.28

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A business owner noted the features of the 100 cars parked at the business. Here are the results:
AlexFokin [52]

Complete Question

The complete question is shown on the first uploaded image  

Answer:

The probability is  P(4 \ doors | sunroof ) =  0.40

Step-by-step explanation:

 From the question we are told that

        The number of cars packed is  n = 100

The objective of this solution is to find the probability that the car which has a sunroof also has four doors

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Baye's Rule define this probability mathematically  as

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          P(4 \ doors \ n \ sunroof ) =  20

and     P(sunroof) =  50

So

      P(4 \ doors | sunroof ) =  \frac{20}{50}

      P(4 \ doors | sunroof ) =  0.40

       

3 0
3 years ago
Drag a reason to each box to complete this proof.<br><br> If 12=13x+5 , then x = 21.
Ainat [17]
<span><span>I think the answers are:

Statement          Reason</span><span><span><span>  
<span>12=<span>13</span>x+5          </span></span>Given</span><span><span>  
<span>7=<span>13</span>x          </span></span>Subtraction Property of Equality</span><span><span> 
21 = x          </span>Multiplication Property of Equality</span><span><span> 
x = 21          </span><span>Symmetric Property of Equality 

By the way, I'm doing the same exam for Geometry as well. There's a lot of proof questions on there which I'm not good at doing for the reasoning part. If you finish the exam before I do, maybe you can message me what the answers are for some of the questions on there so I know if my answers for the questions are incorrect or not. 

Besides that, hope the answer above is correct for you. 

<em>~ ShadowXReaper069</em></span></span></span></span>
5 0
3 years ago
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Ganezh [65]

sin 45 = opp/hyp

sin 45 = 4 / y

y = 4/sin 45

y = 4 /((sqrt2)/2)=4* sqrt(2)


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B

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Dmitrij [34]

Answer:

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Step-by-step explanation:

You would use the mid-point formula for this

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1 year ago
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