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horizontal symmytry

 

Posted by Utpala Venkat Raju (Jan 18, 2017) (Question ID: 1448)

  • Answers:
  • <pre> Ans. If A word, Letter, fiqure is divided by a straight line. Both the parts are equal in all respects. When the pictures or figures are folded along the straight lines, one part will fit or cover the other part exactly. </pre> <pre> if you draw a horizontal line ______________ across the middle of an object with horizontal symmetry, the top will be a mirror image of the bottom. Examples of capital letters that have horizontal symmetry are: B C D E H I K O X</pre>
    Answered by Naveen Sharma (Jan 18, 2017)
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in a co. 85 workers are male and 32%are female .cal total no. of worker

Posted by Sakshi Bafna (Jan 15, 2017) (Question ID: 1385)

  • Answers:
  • Let Total Number of Worker = x

    Male Worker = 85

    % of female worker = 32%

    then % of male worker = 68%

    So 68% of x = 85

    => 68*x/100 = 85

    = x = 85*100/68

    => x = 5*100/4

    => x = 5*25

    x = 125

     

    Answered by Naveen Sharma (Jan 16, 2017)
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  • 40

    Answered by raman SINGH (Jan 15, 2017)
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The area of rhombus is 119 cmand its perimeter is 56 cm. Find its altitude ?

Posted by Anju Poddar (Jan 12, 2017) (Question ID: 1319)

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  • <font face="Roboto, sans-serif">Given</font><font face="Times New Roman, serif">Area of a rhombus is 119 cm</font>2<font face="Times New Roman, serif">and perimeter is 56 cm</font>

    To Find: the height of the rhombus.

    Solution:

    We know that the sides of a rhombus are equal.

    So,

    Side of a rhombus = perimeter of rhombus/4 = 56/4 = 14 cm

    And,

    Area of rhombus = base*height

    119 = 14*Height

    Height = 119/14 = 8.5 cm 

    Hence, height of a rhombus is 8.5 cm

    Answered by Naveen Sharma (Jan 13, 2017)
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What is aerobic respiration? 

Posted by Arun Kumar (Jan 08, 2017) (Question ID: 1178)

  • Answers:
  • Aerobic respiration is the form of respiration which uses oxygen. It can be summarised by this equation:

    glucose + oxygen → carbon dioxide + water (+ energy)

    Energy is shown in brackets because it is not a substance. Notice that:

    • Glucose and oxygen are used up
    • Carbon dioxide and water are produced as waste products
    Answered by Vikrant Singh (Jan 08, 2017)
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What is aerobic respiration 

Posted by Arun Kumar (Jan 08, 2017) (Question ID: 1177)

  • Answers:
  • Aerobic respiration is the form of respiration which uses oxygen. It can be summarised by this equation:

    glucose + oxygen → carbon dioxide + water (+ energy)

    Energy is shown in brackets because it is not a substance. Notice that:

    • Glucose and oxygen are used up
    • Carbon dioxide and water are produced as waste products
    Answered by Vikrant Singh (Jan 08, 2017)
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  • Aerobic respiration is the process of producing cellular energy involving oxygen. 

    Answered by Devanshu Agarwal (Jan 08, 2017)
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What is excretory system 

Posted by Arun Kumar (Jan 08, 2017) (Question ID: 1175)

  • Answers:
  • Excretory system is biological system that removes unnecessary excess material from the body fluids of organism so as to maintain balance of chemicals in the body.

    Answered by shruti dadhwal (Jan 09, 2017)
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  • The excretory system in human beings includes a pair of kidneys, a pair of ureters, a urinary bladder, and a urethra. This is also known as the urinary system.

    Answered by Devanshu Agarwal (Jan 08, 2017)
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Avea piece of thin wire in the form of an equilateral triangle of side 31.4 metre is bent into a ring with no loss of wire. find the diameter of the Ring.

Posted by Nehal Khandelwal (Jan 07, 2017) (Question ID: 1132)

Find the area of an equilateral triangle, each of whose side is 10 cm

Posted by savitajain jain (Jan 07, 2017) (Question ID: 1129)

  • Answers:
  • Area of equilateral triangle is A=√3/4(side)^2 

    Side=10cm

    Area=√3/4 (10)^2 =25√3

    Answered by shruti dadhwal (Jan 07, 2017)
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Find the area of an isosceles triangle, whose base is 8 cm and length of each equal side is 5 cm

Posted by savitajain jain (Jan 07, 2017) (Question ID: 1128)

  • Answers:
  • Area of isosceles triangle = 1/2 *b*h 

    = 1/2 * 8* 5 = 20 cm^2 

    Answered by shruti dadhwal (Jan 07, 2017)
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the area of rectangular park is same as that of the square park. If the dimensions of the rectangular park are 200m by 32m, then find the side of the square park 

Posted by savitajain jain (Jan 07, 2017) (Question ID: 1127)

  • Answers:
  • area of rectange=area of square (given)

    lxb=a^2

    200x32=a^2

    6400=a^2

    a=80m

    Answered by Vikrant Singh (Jan 07, 2017)
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explain why there is no waste in forest 

Posted by MADHURI YADAV (Jan 04, 2017) (Question ID: 1072)

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  • The useless products of a forest are biodegradable which get disposed of by the microbs with time.That's why we can say that there is no waste in the forest (Although rotten leaves, fruits etc. can be thought as waste products of forest , but, as the time spends, these wastes get decomposed and provide nutrients to the soil where they fall)

    Answered by Lakshmi kumari (Jan 05, 2017)
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Ifmama=mami then chacha=?

Prove it by mathematics.

Posted by Turanya Mishra (Jan 03, 2017) (Question ID: 1052)

  • Answers:
  • chachi

    Answered by Jaimy Renji (Jan 03, 2017)
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Find the sum of the following expression

3a+4b-15c,6(a+b),12-7c-6a

Posted by K Priyanshu (Jan 02, 2017) (Question ID: 1022)

  • Answers:
  • 3a+4b-15c+6(a+b)+12-7c -6a

    3a+4b-15c+6a+6b+12-7c-6a

    3a+10b-8c+12

    Answered by sandeep dwibei (Jan 03, 2017)
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  • Given expression:3a+4b-15c,6(a+b),12-7c-6a 

    Second term of expression will be like this 

    6(a+b)=6a+6b

    So, now we will add by writing first term, under it we will write like terms i.e. ,

                3a+4b-15c

                6a+6b

            +  -6a         -7c        +12

                 -----------------------------------

                  3a+10b-22c+12

    Ans= 3a+10b-22c+12

    Answered by Sudhanshu Yadav (Jan 03, 2017)
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Find the sum of the following expression

7x + 2y , 3x + 5y

Posted by K Priyanshu (Jan 02, 2017) (Question ID: 1020)

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  • Its an easy question. 

    Just add both the terms, 

    7x+2y+3x+5y

    Collect the like terms 

    (7x+3x)+(2y+5y)

    =10x+7y   is the final answer 

    Answered by Shweta Gulati (Jan 03, 2017)
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How is the measurement of time important in a students life's?

 

Posted by Prakhar Aggarwal (Dec 29, 2016) (Question ID: 931)

Rahul said that the ratios 2:3 and 4:9 are in proportion . Is he right? why?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Posted by ishwar Singh (Dec 29, 2016) (Question ID: 925)

  • Answers:
  • 2/3 and 4/9

    Doing cross multiplication,

    2 x 9 and 3 x 4

    = 18 and 12

    Since 18 is not equals to 12

    Therefore 2:3 and 4:9 are not in proportion.

    Answered by Rashmi Bajpayee (Dec 30, 2016)
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  • No, He is not right.

    Two ratios a:b and c:d are in proportion only if a*d = b*c 

    and in this case this is not possible. 

    Answered by Naveen Sharma (Dec 29, 2016)
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Write a letter to the Editor of a newspaper about an accident you witnessed on the road during the festive season. Describe the accident, the casualties and possible reasons for the accident. Suggest what the authorities might do to prevent such accidents from happening.

Posted by Tanush Agarwal (Dec 28, 2016) (Question ID: 906)

if  in triangle ABC, AE is purpendicular to BC and 6cm and BC is 9 cm what is the area of Trianlge ABC?

Posted by Sonia Vincent (Dec 27, 2016) (Question ID: 901)

  • Answers:
  • Area of Triangle  =  1/2 * H * B

    where H = Height of Perpendicular 

    B = base

    Given = 

    Base = 9 cm

    height = 6 cm

    area = 1/2 *9*6 = 27 cm2

     

    Answered by Naveen Sharma (Dec 28, 2016)
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what did the dog do to lead the farmer to the hidden gold?

Posted by Pramod Surve (Dec 26, 2016) (Question ID: 861)

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  • The dog came running to the farmer and kept on whining and running to and fro till the farmer followed him. The dog began a lively scratching. Thinking it was possibly a buried bone or fish, the farmer struck his hoe in the earth and found the hidden gold.

    Answered by Naveen Sharma (Dec 27, 2016)
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2/3 of a number is less than the original number by 10. What is the original number

Posted by Anupam Bhatt (Dec 25, 2016) (Question ID: 829)

  • Answers:
  • Let original numebr be x.

    According to question

    (2/3)x = x - 10

    x - 2x/3 = 10

    x/3 = 10

    x = 30

    the original number is 30

     

    Answered by Rashmi Bajpayee (Dec 26, 2016)
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what is class interval and frequency(in the lesson data handling-grade 7)

 

Posted by Nittya Modi (Dec 25, 2016) (Question ID: 824)

  • Answers:
  • Class interval is the size of each class into which a range of a variable is divided, as represented by the divisions of a histogram or bar chart.

    Frequency is the number  at which something occurs in a given sample.

     

     

    Answered by Naveen Sharma (Dec 26, 2016)
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In code language,

529 means he got meal,

894 means meal is stale,

273 means he be told ,

604 means eat the stale,

which word represents the number 8?

 

Posted by Geeta Paruti (Dec 24, 2016) (Question ID: 817)

  • Answers:
  • Here we see the common numbers in the terms .Let is check the first two terms 

    Here number 9 is common and Meal is common in both the terms .So 9=meal

    Now let us check the second and the fourth statement.here the term 4 is common and stale is common.So 4=stale

    So 894= meal is stale 

    That means the number 8 represents 'is'.

     

    Answered by shruti dadhwal (Dec 24, 2016)
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what is meant by aerobic respiration?

Posted by Jagadeesh Siva (Dec 21, 2016) (Question ID: 798)

  • Answers:
  • When Breakdown of glucose occurs with the help of oxygen it is called aerobic respiration

    Answered by MADHURI YADAV (Jan 04, 2017)
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  • Aerobic respiration is the process of producing cellular energy involving oxygen.It is the release of energy from glucose or another organic substrate in the presence of oxygen.

    Answered by shruti dadhwal (Dec 22, 2016)
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  • The kind of respiration that takes place in the presence of oxygen. In aerobic respiration the end products produced are Carbon dioxide and a large amount of energy. 

    Answered by Shweta Gulati (Dec 22, 2016)
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two numbers are in the ratio 1:2if 7 is added to both their ratio becomes 3:5 find the greater number

Posted by priyanshu gaur (Dec 18, 2016) (Question ID: 770)

  • Answers:
  • Let the first number = x

    second number = y

    then as per quesiotn, 

    x/y = 1/2 => y = 2x  ...... (1)

    according to 2nd condition, 

    (x+7)/(y+7) = 3/5

    => 5x + 35 = 3y + 21

    => 5x-3y = 21 - 35

    => 5x - 3y = -14 .......... (2)

    put value of y from (1)

    5x - 3 * 2x = -14

    5x-6x = -14

    -x = -14 

    x = 14 

    y = 2*14 = 28 

     

    greater number is 28

     

     

    Answered by Naveen Sharma (Dec 19, 2016)
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  • x/y = 1/2 

    2x=y

    x+7/ y+7 = 3/5

    5x+35= 3y+ 21

    Now y=2x , substituting it's value 

    5x+ 35= 3(2x)+ 21

    6x-5x = 35-21= 14 

    x=14

    y= 2x= 28

    So the greater number is 28

     

    Answered by shruti dadhwal (Dec 18, 2016)
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what are sandunes

Posted by priyanshu gaur (Dec 15, 2016) (Question ID: 757)

  • Answers:
  • Sand dune is a hill of sand near an ocean or in a desert that is formed by the wind.It is a ridge of sand created by wind which is found in deserts or near lakes and oceans.

    Answered by shruti dadhwal (Dec 15, 2016)
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  • A sand  dune  is  a  mount,  hill  or  ridge  of  sand  that  lies  behind  the  part  of  the  beach  affected  by tides.  They  are  formed  over  many  years  when  windblown  sand  is  trapped  by  beach  grass  or  other stationary  objects.  Dune  grasses  anchor  the  dunes  with  their  roots,  holding  them  temporarily  in place,  while  their  leaves  trap  sand  promoting  dune  expansion.  Without  vegetation,  wind  and waves  regularly  change  the  form  and  location  of  dunes.  Dunes  are  not  permanent  structures.

    Answered by Naveen Sharma (Dec 15, 2016)
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Why jan sunwais are organised ?

 

Posted by mahendra kumar pancharia (Dec 11, 2016) (Question ID: 735)

  • Answers:
  • Jun sunwai(Public hearing) was a method where detailed documents derived from official expenditure records were read aloud to the people of villages who gathered.In the form of hearing people are invited to give their testimonies which reveal difference in the official record and people's experience.

    Answered by shruti dadhwal (Dec 11, 2016)
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2x+5=13

Posted by Johann Mathews George (Dec 11, 2016) (Question ID: 734)

  • Answers:
  • 2x+ 5=13 

    Keeping x on one side ,

    2x= 13-5=8

    x=8/2=4

    Answered by shruti dadhwal (Dec 11, 2016)
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  • for finding x +5 will come on RHS and will become -5 so

    13-5=8 sooo

    x = 8 divided by 2 soo 4 

    x=4

    Answered by Arvind Dhavala (Dec 11, 2016)
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  • Since 2x + 5 = 13

    Subtract 5 from both sides2x+5-5=13-52x=8Now Divide by two on both sidesx=8/4x=2

    Answered by Devanshu Agarwal (Dec 11, 2016)
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Write a letter to the editor of the newspaper about the present scarcity of water and ways to save it

 

Posted by raghav chopra (Dec 11, 2016) (Question ID: 732)

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  • The Editor

    Xyz newspaper

    city name

     

    Date :

    Sub:

    <font face="Arial">Dear Editor
     I would like to draw attention of the municipal authorities towards the scarcity of water in our locality. In our locality, there is no fixed time for the supply of water. Sometimes the water is not supplied at all, consecutively for four-five days, while other times it is for a very short time.</font>


    <font face="Arial">Moreover, the water is dirty, muddy and polluted and worms can be seen the floating in the water. Although several complaints were made to the municipality but they have fallen on deaf ears of the authorities. The authorities nave not yet taken any concrete steps to solve our water problem.</font>


    <font face="Arial">I shall be thankful to you if our complaints is published in the columns of your esteemed daily.
     
    Sincerely,</font>

    <font face="Arial">Your name</font>

    Answered by Naveen Sharma (Dec 11, 2016)
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what is the main respiratory organ and why

Posted by Falak solkar9 (Dec 10, 2016) (Question ID: 723)

  • Answers:
  • The main respiratory organ is the king which carries oxygen through RBC(Red blood cells) and takes out CO2 from body when we exhale.T he respiratory system also includes trachea which filters the inhaled air and sends it to bronchi from where the air is directly Carried to the lungs.The diaphragm is the muscle of the respiratory system which expands and contracts in the process.

    Answered by shruti dadhwal (Dec 10, 2016)
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what is different btween mobile and motion

Posted by Rishabh Sharma (Dec 09, 2016) (Question ID: 716)

  • i dont know

     

    Posted by vinay kumar (Dec 09, 2016)
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  • Mobile is a characteristic whereas motion is a process

    Answered by Naveen Sharma (Dec 10, 2016)
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