Homework Help

Ask questions, doubts, problems and we will help you.

Ask questions which are clear, concise and easy to understand.

If smallest factor of a is 3.smallest factor of b is 7.find smallest factor of a+b

Posted by sunita pandey (Apr 27, 2017 10:38 p.m.) (Question ID: 5049)

  • Answers:
  • smallest factor of any nnumber is 1. therefore 3 and 7 can never be the smallest factor of required number

    Answered by Anwer Sayeed (Apr 28, 2017 6:46 a.m.)
    Thanks (0)
  • Add Answer

Any one here who is preparing this year for NEET 2017 , 7 MAY

pl. can you tell me its 10 days now what I should prepare first to score good marks

Which topics I shoud do first , which are the important ones

Posted by Aashka Shah (Apr 27, 2017 10:09 p.m.) (Question ID: 5048)

 What is the value of the arcsin(sin3)

 

Posted by Harshit Mishra (Apr 27, 2017 10:01 p.m.) (Question ID: 5047)

How to calculate sales mix of 4 products ?

 

Posted by Anusha Amir (Apr 27, 2017 9:39 p.m.) (Question ID: 5046)

Five properties of electromagnetic spectrum. 

Posted by Bimla Singh (Apr 27, 2017 8:17 p.m.) (Question ID: 5045)

Find two irrational numbers between 4/9 and 7/11

Posted by Gunjan Yadav (Apr 27, 2017 4:56 p.m.) (Question ID: 5044)

  • Answers:
  • 4/9 and 7/11

    LCM of 9 and 11 is 99.

    Hence, 

         4 × 11/ 9 × 11 = 44/99

         7 × 9/ 11 × 9 = 63/99

     2 rational numbers between 4/9 and 7/11 are 45/99 and 46/99

    Answered by Rachna gupta (Apr 27, 2017 7:04 p.m.)
    Thanks (1)
  • Add Answer

A boy kicked a ball with initial speed of 19.6 m/s at 45° angle. Another boy who was standing 67.4 m away starts to run to meet the ball.what must be the speed of the boy in order to catch the ball before the ball hits the ground.

Posted by raghav aggarwal (Apr 27, 2017 1:20 p.m.) (Question ID: 5043)

According to CBSE, should classes of 11th be start before coming result of 10th???

Posted by Sudhanshu Baranwal (Apr 27, 2017 11:46 a.m.) (Question ID: 5042)

Difference between  RENNIN & RENIN ?

Posted by Aashka Shah (Apr 26, 2017 11:29 p.m.) (Question ID: 5041)

  • Answers:
    • Renin is an enzyme that is involved in the regulation of arterial blood pressure.
    • Rennin AKA Chymosin, is an endopeptidase produced by some animals to curdle the milk they digest.
    Answered by Payal Singh (Apr 27, 2017 4:51 a.m.)
    Thanks (1)
  • Add Answer

What is the value of the following 

1. 00

2. 0/0

 

Posted by Jayanth King (Apr 26, 2017 8:26 p.m.) (Question ID: 5040)

  • Answers:
  • 00 = 1

    {tex}{0\over 0} = undefined {/tex}

    Answered by Payal Singh (Apr 27, 2017 4:53 a.m.)
    Thanks (0)
  • Add Answer

in what form o2 and co2 is transported

 

Posted by Jaya Sodhani (Apr 26, 2017 5:36 p.m.) (Question ID: 5039)

  • Answers:
  • In animals O2 is transported in combined form with haeglobin and CO2 is transported in dissovled form with plasma of blood.

    Answered by RAJENDRA SINGH (Apr 26, 2017 7:17 p.m.)
    Thanks (0)
  • Add Answer

How to make time table for commerce stream my school time is 12:45 to 6:30

Posted by Harshit Mishra (Apr 25, 2017 10:12 p.m.) (Question ID: 5038)

  • Answers:
  • My suggestion try 1 time

    just read wht's going to taught that day in morning

    after school learn and revise , you will be more confident  

    Answered by Aashka Shah (Apr 27, 2017 3:03 p.m.)
    Thanks (0)
  • You are in Second Shift , Wake up early and give time to difficult subjects before going to school, after coming back just revise what you have done  in morning and then give time to little bit easy subjects

     

    Answered by JusT Henry (Apr 26, 2017 8:03 p.m.)
    Thanks (2)
  • Add Answer

what is ligustic coposition

 

Posted by Suraj Choudhery (Apr 25, 2017 7:01 p.m.) (Question ID: 5037)

  • Answers:
  • Too much love towards once mother tongue is called linguistic love It become s chauvinism when one started disrespecting mother tongue of other

    Answered by Harshit Mishra (Apr 25, 2017 10:08 p.m.)
    Thanks (0)
  • Add Answer

Does arihant publishes ncert exemplar.

Posted by Rachna gupta (Apr 25, 2017 6:38 p.m.) (Question ID: 5036)

  • Answers:
  • Yes it publishes

    Answered by Aashka Shah (Apr 25, 2017 10:31 p.m.)
    Thanks (0)
  • Add Answer

I want to buy ncert exemplar book. Can somebody tell me which company publishes it because it is not available in any shop in my neighbourhood by this name.

I WANT THE BOOK SO PLEASE TELL ME WHICH NAME I SHOULD ASK TO GET THE BOOK.

PLEASE.  IT'S URGENT. REPLY FAST.

(BEFORE 27 MARCH 2017).

Posted by Rachna gupta (Apr 25, 2017 6:38 p.m.) (Question ID: 5035)

  • dear its not possible

    you can now buy online or else these website provides by the way ncert exempler mcqs

    you can use it

    or just try to download

    Posted by Aashka Shah (Apr 26, 2017 9:35 p.m.)
  • 27 April  2017

    Posted by Rachna gupta (Apr 26, 2017 3:22 p.m.)
  • Add Comment
  • Answers:
  • For which subjects you want it

    Answered by Aashka Shah (Apr 25, 2017 10:34 p.m.)
    Thanks (1)
  • m sorry but are you sure its 27 march 2017

    its which month exactly

    Answered by Aashka Shah (Apr 25, 2017 10:33 p.m.)
    Thanks (1)
  • Add Answer

which hormones play essential roles in SPERMATOGENESIS

(1) Testosterone

(2) LH

(3) Oestrogens

(4) All

Posted by Aashka Shah (Apr 25, 2017 5:54 p.m.) (Question ID: 5034)

  • Answers:
  • Testosterone is the most essential hormone, LH and estrogen are also known to perform important functions during spermatogenesis.

    So the answer to this question can be (4) all of these.

     

     

    Correction : Option (3) must be estrogen.

     

     

    Answered by Payal Singh (Apr 26, 2017 11:14 a.m.)
    Thanks (1)
  • Add Answer

What are the combinations of NOR & NAND gate

Posted by Aashka Shah (Apr 25, 2017 2:26 p.m.) (Question ID: 5033)

  • no , I am asking their combinations like

    2 NAND gate makes

    3 NAND gate makes which gate

    same as NOR

    2NOR , 3 NOR

    Posted by Aashka Shah (Apr 27, 2017 10:04 p.m.)
  • what their combinations are called

    Posted by Aashka Shah (Apr 25, 2017 5:50 p.m.)
  • Add Comment
  • Answers:
  • They themselves are the combinations

    NOR GATE-OR GATE + NOT GATE

    NAND GATE- AND GATE + NOT GATE

    Answered by raghav aggarwal (Apr 27, 2017 1:26 p.m.)
    Thanks (0)
  • Add Answer

how are animals grouped on the basis of food

 

Posted by Ks Chakradhar (Apr 25, 2017 2:26 p.m.) (Question ID: 5032)

  • Answers:
  • On the basis of food habit animals are classified as

    a. Herbivores - plant eaters.

    b. Carnivores - flesh eaater.

    c. Ominivores - both plant and meat eater.

    Answered by RAJENDRA SINGH (Apr 26, 2017 7:20 p.m.)
    Thanks (0)
  • Add Answer

What is POYNTING VECTOR ?  &

What does it represent ?

Posted by Aashka Shah (Apr 24, 2017 11:46 p.m.) (Question ID: 5031)

  • Answers:
  • In physics, the Poynting vector represents the directional energy flux density (the rate of energy transfer per unit area) of an electromagnetic field. The SI unit of the Poynting vector is the watt per square metre (W/m2).

    The Poynting vector is defined as

    <dl> <dd></dd> </dl>

    where 

    • E is the electric field vector;
    • H is the magnetic field's auxiliary field vector.
    • S is Poynting vector
    Answered by Shweta Gulati (Apr 25, 2017 1:07 p.m.)
    Thanks (1)
  • Add Answer

calculate gnpfc by using income and expenditure method 

contents                               rs in crore

private final consumption       expenditure                         1000

net domestic capital formation 200

profits                                          400

compensation of employees    800

rent                                               250

government final consumption expenditure                                500 

depreciation                                60

interest             :                         150 

net factor income to abroad     -10

net exports                                   -20

net indirect taxes                          80

 

Posted by Erum Fatima (Apr 24, 2017 9:06 p.m.) (Question ID: 5030)

Who created cotton mill

Posted by Ayush Bhai (Apr 24, 2017 8:58 p.m.) (Question ID: 5029)

  • Answers:
  • Richard Arkwright

    Answered by Amisha Agasti (Apr 27, 2017 11:50 a.m.)
    Thanks (0)
  • The first cotton industry was set up in 1854 and it went into production two years later.the name of the person who created it was not mentioned

    Answered by Amisha Agasti (Apr 24, 2017 9:43 p.m.)
    Thanks (0)
  • Add Answer

What is the function of control unit 

Posted by Anita Rajpurohit (Apr 24, 2017 8:41 p.m.) (Question ID: 5028)

  • Answers:
  • The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor. It tells the computer's memory, arithmetic/logic unit and input and output devices on how to respond to a program's instructions. It directs the operation of the other units by providing timing and control signals.

     

    Answered by Shweta Gulati (Apr 25, 2017 1:09 p.m.)
    Thanks (0)
  • Add Answer

Activities related to how I taught grandmother to read???

 

Posted by Jyoti Sharma (Apr 24, 2017 8:26 p.m.) (Question ID: 5027)

  • Answers:
  • Magazine making on importance of education of women the magazine should completely be based on women education. 

    Enact a play.

    Essay or poem writing

     

    Answered by Rachna gupta (Apr 25, 2017 6:15 p.m.)
    Thanks (0)
  • Add Answer

When a wire of resistance R is streched and its radius becomes r/2 , then new resistance is ?

Posted by Aashka Shah (Apr 24, 2017 6:07 p.m.) (Question ID: 5026)

  • Answers:
  • Ans. Let the Initial Length of Wire = l

    Final length of Wire = L

    Intial Radius of wire = r

    FInal Radius of Wire r1 = {tex}r\over 2{/tex}

    So, Initial Volume of Wire = Final Volume of Wire

    {tex}=> \pi r^2 l = \pi r_1^2L{/tex}

    {tex}=> r^2 l = ({r\over 2})^2L{/tex}

    {tex}=> r^2 l = {r^2\over 4}L{/tex}

    {tex}=> L = 4l{/tex}

    Initial Area of Cross Section of wire (A) = {tex}\pi r^2{/tex} 

    Final area of Cross section of wire (A') = {tex}\pi r_1^2 = \pi{r^2\over 4}{/tex}

    Initial Resistance of Wire (R)= {tex}\rho {l\over A} = \rho {l\over \pi r^2}{/tex}

    Final Resistance of Wire (R') = {tex}\rho {L\over A'} = \rho {4l\over {\pi r^2\over 4}} ={ \rho 4\times 4l\over\pi r^2}{/tex}

    {tex}16\rho{l\over \pi r^2} = 16R{/tex}

    So new Resistance ll be 16 times of initial Resistance.

    Answered by Naveen Sharma (Apr 25, 2017 3:54 p.m.)
    Thanks (1)
  • Add Answer

Can anyone please suggest a time table for studying so that I can cover all subjects everyday.

I AM AT SCHOOL FROM 8a.m. -2p.m. 

Posted by Rachna gupta (Apr 24, 2017 5:26 p.m.) (Question ID: 5025)

  • Answers:
  • my suggestion don't take all subjects in day

    instead take 1 in 1 day try to complete as much as you can

    divide your subjects

    Eg. if you have 3 sub , then 1 sub for 2 days and Sunday for revision

    Answered by Aashka Shah (Apr 24, 2017 8:10 p.m.)
    Thanks (1)
  • take subjects as per your convenience but make sure you should take rest of minimum 5 minutes every 55 minutes (1 hr)

    make your schedule according to your hard & favorite subjects and acc.to your syllabus

    make sure you can complete the course before 1 month.

    Don't just read and read also have some refreshment

    Answered by Aashka Shah (Apr 24, 2017 7:46 p.m.)
    Thanks (1)
  • Add Answer

state and prove benoulli"s theorem.give tow application of it?

Posted by siva selvam963 (Apr 24, 2017 4:19 p.m.) (Question ID: 5024)

  • Answers:
  • I just hate BERNOULLI

    Answered by Aashka Shah (Apr 24, 2017 5:03 p.m.)
    Thanks (0)
  • Add Answer
  1. A room,: length = 5m breadth = 3.5m height = 3m. Find the cost of cementing the inner portions of the wall at Rs. 20 per sq metre
  2. Each edge of a cube is incresed by 50%. Find the percentageincrease in the SURFACE AREA of the cube.
Posted by Krithvee Chinnasamy (Apr 24, 2017 1:58 p.m.) (Question ID: 5023)

  • Answers:
  • (1)

    Dimensions of room :

    l = 5m ; b = 3.5m  ; h= 3m

    LSA of room = 2(l+b) x h

    = 2 ( 5 + 3.5) x3

    = 6 x 8.5

    = 52 m2

    1 m2 = Rs. 20

    52 m2 = Rs. 20 x 52 = Rs. 1040

    (2) 

    Let the edge of the cube be 'a' 

    Surface area = 6a2

    Let the edge be increased by 50% so the new edge becomes = a + (a/2)  = 3a/2

    New Surface area = 6 (3a/2)2 = 27a2/2

    Percentage increase = [Change in Increase/ Original] x 100

    = [(27a2 - 12a2)/ 6a2 x 2 ] x 100

    (5 x 100 )/4

    5 x 25  = 125%

    Answered by Shweta Gulati (Apr 24, 2017 2:52 p.m.)
    Thanks (1)
  • Add Answer

Sub - EP..   12th 

 

Posted by Vinita Jain (Apr 24, 2017 11:14 a.m.) (Question ID: 5022)

Notes + case studies of each CH. ..    As fst as possible.... 

Posted by Vinita Jain (Apr 24, 2017 11:13 a.m.) (Question ID: 5021)

I want more cbse latest sample paper for multulomedia and web technology. Can I get the sample paper. Plz reply me fast because the exam is very near. So i am hoping for positive and early reply

Posted by Piyush Chawla (Apr 24, 2017 10:28 a.m.) (Question ID: 5020)

Sponsored Links

Download Mobile App

banner

Subscribe by E-mail

For Latest News and Updates from myCBSEguide.com
Enter your email address:

Connect via Facebook

Sponsored Links