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Math / Science

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For a number sequence A: (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)

Are the terms in the subset B: (1, 4, 7, 8) considered in sequence given that some numbers from A were skipped?

Should I use the adjective sequential or succedent, or is there a better word?
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Introduction to Web Design
LVL 12
Introduction to Web Design

Develop a strong foundation and understanding of web design by learning HTML, CSS, and additional tools to help you develop your own website.

Jenny has pennies , nickels , dimes , quarters , half dollars and/or dollar in her purse. still shes unable to make change for aa old two dollar bill.what is the greatsest amount of money she could possibly have.(She may have none of some of the coins.)

Barb has five small chains of three links each. She wants to make them into one long chain of 15 links. If cutting a link costs 20 cents and wedling a link costs 1.50$ what is the least cost of making the chain (Hint: You can do it for less than 6.80$.

Stefan is working on his garden. All of the flowers in the garden were white expect two,all are red except two and all are yellow except two. How many flowers are in stefan's garden.

in how many ways can change be made for for 85 cents using nothing but but nickels and/or dimes
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Hello,

I never tire of asking me: To be a good programmer, what is the relevance of getting a degree in computer science? And a good programmer has in mind all the commands of a programming language, like PHP or JAVA? The oldest languages (MSDOS) had less than 200 commands and functions, currently they must have more than 1000

I would like to hearing from you

sincerely
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Consider a binomial random variable X ~ Bi(n,∅).

We can get P(x) and P(x+1) as below but how to solve question 1 & 2 ?

P(x) = nCx . ∅ x (1- ∅)n-x
p(x+1) = nC x+1 . ∅ x-1 (1- ∅) n- (x+1)
                     
Thx.
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Dear experts,

I was looking at videos which complement Good notes 4. I can came across the one below:
https://www.youtube.com/watch?v=jOG48N5U6CE&t=8s


The presenter is discussing, at time scale 8m  32sec, an app where i could write math formulae (not using key board) on an app and it calculated the result.
I have my Itunes account with country as India. I do not think it is available for India Itunes account.

I use good notes for writing my MAth theorems from Real analysis, measure and integration, number theory, linear algebra, vector spaces, ODE/PDE, probability.

Kindly can anyone provide me a list of similar apps ranked by preference.

I will then look for those which are available for India.

Kindly guide.me.

Thank you
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What is the date today if april 29 was nine days before two days after three days preceding the day before five days following the day before yesterday?

Ray and a friend drive from vancouver to toronto in 56 h of steady driving, They leave vancouver on may 30 8 am when do they arrive in toronto
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I'm wondering if the following makes sense to define the sequence of points that make up the shapes? Not sure of the proper way to describe the sequence so any help to improve the formula will be appreciated. A289006 relates to the number sequence at oeis.org. Thanks.

shape sequence Fibonacci numbers x A289006
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I've having trouble with a rounding routine in Excel.  The goal is when the user enters a number with the wrong number of significant digits, the macro rounds the number and replaces what they entered.  It does not merely change the cell display to show the desired number of digits, it actually corrects the number entered and updates the cell.

I am seeing some very strange results where sometimes the macro works and other times it does not.  Please enter the code below in a blank Excel workbook and try this out.
Private Sub Worksheet_Change(ByVal target As Range)

If target.Cells.Count > 1 Then Exit Sub

If target.Value = "" Then Exit Sub

If Not (IsNumeric(target)) Then
    MsgBox "please enter a number"
    target.Value = ""
    target.Select
    Exit Sub
End If

Call roundit(target, 0.1)

End Sub

Sub roundit(ByVal target As Range, rez As Single)

Dim x As Single

Application.EnableEvents = False

Select Case rez
Case 0.1
    x = Round(target * 10, 0) / 10
    target.NumberFormat = "0.0"
    MsgBox "Rounded value of " & target & " to the nearest " & rez & " is " & x
    target = x
End Select

Application.EnableEvents = True

End Sub

Open in new window

Try entering these test values:

5 - works
5.54 - correctly changes to 5.5
5.45 - appears to work, but the number in the cell is now 5.40000009536743
5.454545 - correctly changes to 5.5
5.656565 - appears to work, but the number in the cell is now 5.69999980926513
6.899 - appears to work, but the number in the cell is now 6.90000009536743
Etc.  I can't find the pattern!

I've got a number of possible rounding values, hence the select case, but for this example I have just provided one.  I've followed the steps in my rounding algorithm and they appear to be working correctly.  It's gotta be a math thing.  Where are these crazy long values coming from, and how do I get this to work correctly?

Appreciate any help!
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Nine coins of which three are gold and six are silver in a box. Three coins are selected and placed in bag A. The remaining coins are placed in bag B.
1. Find the probabilities of each possible numbers of gold coins, from 0 to 3, in bag A.

2. on a particular case it is know that one gold coin and two silver cons are in bag A, and that the remaining coins are in bag B. One coin is drawn from a bag selected randomly and put it into another bag. If one coin is then drawn from the last bag, find the probability that it is a gold coin.
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Three ordinary dice are thrown. If the first throw results in just two dice showing the same number, then the die with different number is thrown again. If all numbers are different in the first throw, then all are thrown again. If all numbers are different in the first throw, then all are thrown again. Find the probability that

1. all numbers are the same
2. all numbers are different in a complete turn.

Thx
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Exploring SQL Server 2016: Fundamentals
LVL 12
Exploring SQL Server 2016: Fundamentals

Learn the fundamentals of Microsoft SQL Server, a relational database management system that stores and retrieves data when requested by other software applications.

Do I need a water-water heat exchanger to run a shower off an Antminer S9-Aqua?

My hovel is currently heated by several crypto-miners but they all blow hot air out and do not provide hot water. If I get a water-cooled mining rig can I connect it directly to my hot water tank or do I need a heat exchanger?

I live in a hard water area. there is a lot of chalk in the tap water which makes it taste nice but tends to clog the pipes.
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Please help me to identify the correct type or find a replacement alternative to the broken mini push button used in GPS Prestigio Geovision 5055 as seen in the photos from attached pdf file.

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How do i get the attached data "normalised" -- made into normal distribution ?

Worksheet "Data" = Full Data
"Filtered 25-65" = data with 25-65 s filtered by "Data" and copied in this worksheet.

If i use 25-65, it has the best result - ie, less skewness but stil not into normal distribution.

Any idea to use that range such that the data plotted is normal distribution  ?
Data-25-65--Check-Normal--EE.xlsx
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I'm exploring the use of drones to do delivery (for items that weigh up to 20kg
ie about 44 lbs) of dimensions up to 2ft long x 2ft wide x 10 inches thick.  

Once local authority approves it, thought of sourcing/purchasing some of these
drones but will need to look into the cost effectiveness (ie its  gasoline/petrol
costs, maintenance/repair) or is there any that uses rechargeable powerbanks?

Has Amazon or any country done it & what's the safety & regulatory requirements?
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Hi,
I would like to prepare data for regression analysis.
I can prepare data in two forms.
a) values
b) rankings.
example:
values  60,30,25,90
rankings 2,3,4,1
Which format would be most suitable or does it not matter ?
many thanks
Ian
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We need an MBR, but it needs to be returned as a 5 point polygon.

Test sample :

with OrientedPoint as
   (
      SELECT 1 AS OrientedPoint, sdo_geometry(3001,31370,NULL,sdo_elem_info_array(1,1,1,4,1,0),sdo_ordinate_array(1,11,0,1,0,0))  AS geom FROM dual union all
      SELECT 2 AS OrientedPoint, sdo_geometry(3001,31370,NULL,sdo_elem_info_array(1,1,1,4,1,0),sdo_ordinate_array(2,12,0,1,0,0))  AS geom FROM dual union all
      SELECT 3 AS OrientedPoint, sdo_geometry(3001,31370,NULL,sdo_elem_info_array(1,1,1,4,1,0),sdo_ordinate_array(3,13,0,1,0,0))  AS geom FROM dual union all
      SELECT 4 AS OrientedPoint, sdo_geometry(3001,31370,NULL,sdo_elem_info_array(1,1,1,4,1,0),sdo_ordinate_array(4,14,0,1,0,0))  AS geom FROM dual union all
      SELECT 5 AS OrientedPoint, sdo_geometry(3001,31370,NULL,sdo_elem_info_array(1,1,1,4,1,0),sdo_ordinate_array(5,15,0,1,0,0))  AS geom FROM dual union all
      SELECT 6 AS OrientedPoint, sdo_geometry(3001,31370,NULL,sdo_elem_info_array(1,1,1,4,1,0),sdo_ordinate_array(11,21,0,1,0,0)) AS geom FROM dual union all
      SELECT 7 AS OrientedPoint, sdo_geometry(3001,31370,NULL,sdo_elem_info_array(1,1,1,4,1,0),sdo_ordinate_array(11,31,0,1,0,0)) AS geom FROM dual union all
      SELECT 8 AS OrientedPoint, sdo_geometry(3001,31370,NULL,sdo_elem_info_array(1,1,1,4,1,0),sdo_ordinate_array(15,21,0,1,0,0)) AS geom FROM dual union all
      SELECT 9 AS OrientedPoint, …
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The question is from Physics book titled "Physics for Scientists and Engineers" by Randall D. Knight.  Attached is part of chapter 10.1.

"Objects A and B are oblivious to our choice of system, so change in total kinetic energy for system 2 is exactly the same as for system 1."

How is that possible?  System 1 has kinetic energy because there are external forces but System 2 doesn't have external forces.
interactive_system.PNG
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I drive a Toyota Sienta Hybrid, 2017 make.

Regular mechanic told me the engine / motor oil (he used synthetic type)
for hybrid is different from non-hybrid cars.

Q1:
What about spark plugs (I'm looking at iridium) : is it different from non-
hybrid cars'  iridium spark plugs?

Q2:
Can point me to an ebay, Amazon or Aliexpress link that sell Sienta
Hybrid's iridium spark plugs?
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Following is a sentence about telescope from HowStuffWorks.com

"For example, a small 6-inch (15 centimeter) scope lets you read the writing on a dime from 150 feet (55 meters) away!"

Is 6-inch diameter of objective lens ?

Attached is image of telescope.
Telescope_Parts.PNG
0
HTML5 and CSS3 Fundamentals
LVL 12
HTML5 and CSS3 Fundamentals

Build a website from the ground up by first learning the fundamentals of HTML5 and CSS3, the two popular programming languages used to present content online. HTML deals with fonts, colors, graphics, and hyperlinks, while CSS describes how HTML elements are to be displayed.

I've been using the Azure ML Studio and it is great.

I get the basics of what ML is and what it does. But now I'd like to learn it in more detail - understand the deeper issues, the math behind it, what the different algorithms do and so on.

But I don't know where to go for this. Most of the introductions to ML use Python and TensorFlow. Ideally I'd like to stick to Azure ML Studio but I just can't find anything that tells me about the theory of ML rather than how to use Azure ML Studio.

I'm talking about books or courses - I think ideally a book but either would be fine.

This book might be promising:

Predictive Analytics with Microsoft Azure Machine Learning 2nd Edition Paperback – 19 Aug 2015
by Valentine Fontama (Author), Roger Barga (Contributor), Wee Hyong Tok (Contributor)

But I'm concerned it doesn't give the background - the reviews seem to indicate this.

Let me know if you have read a good book or completed a good course that explains the math of ML and would be something I could use with the Azure ML Studio.

Thanks!
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Math Formula to determine Network/Host subnet

Let's say I have a subnet  192.168.10.0/24 , if I need to have 400 Hosts in the network , I can just change the subnet to 192.16.10.0/23.. this can stem from the formula (2^9) -2=510 ,this will be the correct  one that covers 400 Hosts , because if I use (2^8)-2=254  , it will be less than 400
***2^9 means I already have 8 bits for the Host in the /24 and will just borrow 1 bit from the Network portion and will be /23

Sometimes the request is much more complex, for instance when they ask for 1113 hosts, then I will have to use the calculator and start from 2^1 and add  each time 1 to the power to get  closer to the desired number , ex: 2^10,2^11,etc.....

I wonder if there is a formula, like (2^x)-2= "a number close to 1113", and then I will just determine the value of x.

Thank you
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Why don’t all the bugs look alike?
What could have done differently so that the two drawings  would look more alike?
Was it hard not to ask questions?

BUG 1

http://ge.tt/7SyQToq2

BUG 2
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What is the next number in the series : 1,2,4,8 ...
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Hi,
I was thinking of some good biological videos which shows exactly what happens when u eat oily food inside your body.
what happens when one eats chicken/rice/ other common food items.
Any good video or article which has this details.
Although i see many when searched on google..But cannot be sure about the credibility.
Or anything on similar lines if not exactly the above...backed by scientific evidence
Wonder if someone has taken a video of inside of stomach with some instrument to see what happens
Thanks
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Dear experts

I am reading a book on Derivatives.

In this i have come across continuous compounding of interest rates. The author has applied log in the equation. This is where i am stuck.

Can anyone kindly look at the attached document and point me to a youtube video which will explain these steps.

In the recent past I have raised a question on 'e'. I have got responses. I will be honest i have gone through those videos in detail, yet. I will watch those videos tomorrow.

But any help in the meantime is always welcome.

Thank you
Continuous-compounding-Logarithm.docx
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