Homework Help

If Ade gives N5 out of what he has to Chidi, the two of them will have equal amount. If Chidi gives out N5 to Ade, Ade will have twice as much as Chidi. How much did each of them have initially? The two people involved are Ade a and Chidi c a - 5 = c + 5 The above equation, is from the first sentence of the question. I found it difficult deriving an equation from the second sentence. Let me try. If Chidi gives out N5 to Ade, he has c-5. Ade has 2c [math]\to[/math] a = 2c How do reason to get a good equation for the second second sentence?

Classify the system as consistent or inconsistent, and dependent or independent. 15x - 3y = -18 -5x - y = 6 Thank you!

For this quesiton I chose A, the only other option which makes sense is D. D has some truth in it because it says interpreters will find errors in source code befo they are run but the second one im unsure because when i compile a program with syntax error it throws and error, but it says execute source code which is misleading. Im really stuck on choosing between the both A seems so right I can see what is wrong with B and C but cant see what is wrong with answer D. can anyone help me and tell me if im correct or completely wrong.

Use the lens formula to show that [math]f^2 = ab[/math]. [math]f^2[/math]= square of focal length. a = object distance. b = image distance. I need help please. The lens formular =[math]\frac{1}{f}=\frac{1}{a}+\frac{1}{b}[/math] How do I do that?

Hi All I need help figuring out the ratio's in which the elements in period 2 combine with chlorine and oxygen i.e a method to solve the problem. Below is an attachment containing the informattion I was given and the question. Thanks in advance I appreciate the help. Information.zip

Could someone help me or guide me through this quesiton, and does someone have any good resource where I could learn how ot get my head around boolean equations and truth tables, I have the following quesiton:

I have a programming pseudo code question regarding palindrome theory, meaning a program that checks if the string is the same fowrds to backwrds and backwrds to forwrds. I chose A as my answer because If i use the string "dad" in the array it would return true, the other doe the checking but some results false any suggestions?

I previously posted this in the Computer science section however, as the admin said its more relevant to this post. The question is regarding Huffman coding, The answer I chose Was A because according to huffman coding you have to sort the frequency by lowest to highest and then take the two lowest out as leaves at the bottom of the tree and start with the highest frequency at top, the one that resembles this description is A, as H & N have the lowest in frequency. I have chosen A as the answer am I correct or is this wrong?

Hi, ive moved this topic here as one of the admins said it belond here. Does anyone have any good resource on how to convert An analogue audio signal to a digital one. I came across this question and have no idea on how to solve it, just the input that one member from this forums which was much appreciated =]. Q. An analogue audio signal is converted to digital using sampling rate of 200hz with each sample using one of 64 different levels. How many bits are needed to encode ten seconds of sound(you should ignore the memory requirements for any metadata in your calculations)? Answers: a. 1,280 bits b. 5,000 bits c. 12,000 bits d. 128,000 bits so the calculation…

As humans we interact with software and hardware, however there is another layer which im trying to understand at the momment. for example: our interaction which one seems more correct. The question is : Which way do software, hardware and people work together. Now I have narrowed it down to two answers and my answer is C however, im unsure because there is another option and I will explain my thinking behind it. answer I chose was: C Users --> Application --> Operating System -- > Physical machine ( users interact with application which interact with OS which interact with Physical machine) another option was B Users --> Operating System --> Applicat…

I chose D for this question because Im sure that object C is a database which is on the Server which is B and A is the client and B is another client... whats confusing me is that should the data return back to the client that requested the data why is the data requested by A going to E ? if anyone could help clarify this example I would appreciate it thank you, please let me know if im incorrect.

For the following question I chose C as the answer. I tried using just clear logic. For example. Users --> applications --> operating system --> physical machine. as the interaction, any thought if I am wrong the only one that comes close to looking a bit understandable is B but im not sure if we interact with applications or the operating system...anyone can clarify the justification for the answer for me would appreciate it

For this question I chose B as the von neuman architecture talks about input process output... so Im thinking B represents this proces ass B. data <--> cpu <-->intstructuions The only one that bothers me is D because im not sure on how t say why it is wrong. Firstly, my understanding of D is data provided by the user and sent to the CPU through instructions but then again it goes against the Von Neuman architecture.. any thoughts?

The answer I chose was B, its not A - because we are always taught to never make assumptions there for limiting the dataset to 100 elements is not practical what if the customer has 200, so this is not an option. its not D - because a language doesnt determine effiency it could be writting in lowlevel langages like assembly language or high level like java the language doesnt determine speed. ------------------- now heres the issue C makes a little bit of sense to me because lets say our element is at location 1600 say we had 3000 elements we could start at 1500 and find the element quicker by putting the counter in the middle however I never chose…

I have come across this quesition and I am good at binary to hexadecimal for example A7D = 1010 0111 1101. However, this following question has completely lost me?.. those binary representations are they the actuall representations or made up ones by the questions? any idead on what the binary representation of A would be so I could work the rest out? or any clue on how to go on about it. Thank you

I don't know where to start! Please help!

How do I evaluate [math]9.9\times10^{-26}-2.0[/math]?

Hi, everyone the year has ended I finished my 2nd year at University. I was just going over my Subject Knowledge by doing quizzes, practice tests etc on my University site. However, there servers are messed up so I cant download the mark scheme and I don't know if my answers are correct so I'm going to post the question up and give my reasoning behind my answer and you could tell if I'm correct and what the correct answer would be. I have chosen C as the answer as when you give n = 100 it returns the lowest interger meaning that the less amount of data that needs to be processed by the algorithm meaning its would be the fastes. Please let me know if you agree

[MATH]\frac{1}{m-1}+\frac{9}{2m+3}-\frac{8}{m+4}[/MATH] = [MATH]\frac{(2m+3)(m+4)+9(m-1)(m+4)-8(2m+3)(m-1)}{(m-1)(2m+3)(m+4)}[/MATH]= [MATH]\dfrac{2m^2+8m+3m+12+9m^2-9m+36m-36-16m^2+m-24m+24}{(m-1)(2m+3)(m+4)}[/MATH]= [MATH]\frac{5m(3-m)}{(m-1)(2m+3)(m+4)}[/MATH] What next should be done?

Hello This will no doubt be a very basic question, but I had a question about the following, which is in my text book: REMEMBER ‘Oxidation Is Loss’ of electrons. The opposite of oxidation is reduction, so remember OIL RIG, ‘Oxidation Is Loss, Reduction Is Gain’ of electrons. Oxidation and reduction always occur together; such reactions are known as REDOX reactions. My question, as this is part of the "what oxygen can do to other compounds": are Redox reactions only related to oxygen or can they be any loss/gain of electrons? Thanks

Question: A non-living thing such as a rock does not grow.However, a crystal immersed in a saturated solution may increase in size. HOW IS THIS CHANGE DIFFERENT FROM THAT OF A LIVING ORGANISM? Topic characteristics of living things How can I give a proper answer? Should I talk about cells and tissue expansion as we eat??? Plz help me to sort this problem out and to give a proper definition!

The book says: The lift is at rest---> weight=mg The lift is moving up or down with uniform velocity---> weight=mg I understood this far. Now, it says that when the lift is accelerating uniformly a)upwards--->weight=m(g+a) b)downwards--->weight=m(g-a) My problem is: Why is it + in a) and - in b)? Thnx

pls am a final year student of computer science in diploma am having a little challenge with my project and d topic is BOOKSHOP MANAGEMENT AND ORDERING SYSTEM and am using VB10 to design it but at some point am having problem coding a button to update my database pls ur help will be really appreciated

Hi all, Is there someone who can explain to me how to convert floating point number and its binary representation into IEEE standard?? Thanks so much

I don't know if this is the right place where I can post my question. I'm studying computer architecture for an exam in September but I find some question in the program and I don't know how to answer to them. I tried to search on Internet but I did not find anything. The questions are: Given the number of sets, the number of lines per set, the number of words per line and the number of cells per word, draw the structure of a cache (show tags, valid bits and data structured in sets, lines, words and cells). Given the number of sets, the number of lines per set, the number of words per line and the number of cells per word, and assuming the LRU (least recentl…