Sanjay

Popular questions and responses by Sanjay
  1. Chemistry

    Which radioactive sample would contain the greatest remaining mass of the radioactive isotope after 10 years? A. 2.0 grams of 198 Au B. 2.0 grams of 42 K C. 4.0 grams of 32 P D. 4.0 grams of 60 Co By the way the numbers next to the elements are their

    asked on March 3, 2007
  2. maths

    Given that root 2 is a zero of the cubic polynomial 6x3+2x2-10x-4root2, find its other two zeroes

    asked on July 5, 2015
  3. Maths

    Under root x+ under root x up to infinite time =6 find x

    asked on August 11, 2017
  4. maths

    Four bells tolls at an interval of 8,12,15 &18 second a respectively. How many times will they toll together in one hour excluding the one at the start?

    asked on September 18, 2015
  5. math

    The length of Paulo’s lunch break follows a normal distribution with mean ΞΌ minutes and standard deviation 5 minutes. On one day in four, on average, his lunch break lasts for more than 52 minutes. Find the value of ΞΌ.

    asked on February 13, 2014
  6. maths

    If one of the zeroes of the cubic polynomial x3+ax2+bx+c is -1 then the product of the other two zeroes is -------(A) b -a +1 (B) b-a-1 (C) a-b+1 (D) a-b-1

    asked on July 6, 2015
  7. Probability

    Let 𝑋 and π‘Œ be independent positive random variables. Let 𝑍=𝑋/π‘Œ. In what follows, all occurrences of π‘₯, 𝑦, 𝑧 are assumed to be positive numbers. 1. Suppose that 𝑋 and π‘Œ are discrete, with known PMFs, 𝑝𝑋 and π‘π‘Œ.

    asked on April 19, 2020
  8. Maths

    9^x+2 - 6* 3^x+1= 0 find x

    asked on August 9, 2017
  9. science

    How many sex chromosomes are found in the reproductive cells of human being?

    asked on March 13, 2015
  10. calculus

    A particle is moving along the curve below. y = sqrt(x) As the particle passes through the point (4,2), its x-coordinate increases at a rate of 4 cm/s. How fast is the distance from the particle to the origin changing at this instant?

    asked on October 26, 2010
  11. Chemistry

    What will happen if an iron spoon is used to stir an AgCl solution?

    asked on September 18, 2018
  12. Maths

    Please show the method of showing root 42 on number line.

    asked on August 16, 2017
  13. Maths

    9^x+2 - 6* 3^x+1= 0 find x Answer earlier I got confused

    asked on August 11, 2017
  14. science

    The focal length of a concave mirror, that produces four times larger real image of an object placed at 5 cm distance from the mirror, is------

    asked on July 19, 2015
  15. chemistry

    Treatment with sodium borohydride converts aldosterone A in to an optically inactive alditol. Ruff degradation of A from B, whose alditol is optically inactive. Ruff degradation of B from D - glycerol dehydration. Identify A and B

    asked on July 7, 2015
  16. maths

    Given that^2 is a zero of the cubic polynomial 6x3+2x2-10x-4^2, find its other two zeroes

    asked on July 5, 2015
  17. science

    A wire of resistance 12 ohm per metre is bent to form a complete circle of radius 10 c.m.the resistance between its two diametrically opposite point A and B

    asked on December 26, 2014
  18. Chemistry

    Will there be a reaction if a magnesium strip is placed in a solution containing Zn2+ ions?

    asked on September 18, 2018
  19. math

    12. IF 1/SinA+1/CosA=1/SinB+1/CosB ,PROVE THAT: Cot{(A+B)/2}=TanA.TanB

    asked on March 8, 2018
  20. Maths

    (a^2 - b^2) sin theta+ 2abcos thetha= a^2 + b^2 then find tan theta

    asked on July 10, 2017
  21. Algebra 2

    Let f(x) = 3x^2 – x + 2 and g(x) = 5x^2 – 1. Find f(g(x)). Show each step of your work. I got 75x^4 -35x +6 If that is wrong can you correct me. Thank you!

    asked on April 8, 2017
  22. Maths

    What is the probability of a question (mcq)you are writing now to get 1 Mark out of it.

    asked on March 18, 2017
  23. physics

    3 charges are placed in a equilateralABC of side l.a point is kept between the sideBc such that the chargeA remains.find the magnitude and sign of the point charge

    asked on March 8, 2017
  24. maths

    Line AB touches circle (p,12) at A and circle (Q, 5) at B. If PQ = 25 and A and B are either side of line PQ then AB=-

    asked on March 7, 2017
  25. maths

    The party of kejriwal walks from gwalior to Bhuvneshwar. They first walk straight for 150km and then turn 45 ddegree towards Varansi and again go straight for 120km how for have they travelled from the initial place

    asked on February 3, 2017
  26. maths

    60 students appear for examination. Out of which 1/15 th were failed and total percent of students who got more than 90% were 0.125% .then if 1 student randomly choose find the probability of getting that students to be passed

    asked on December 10, 2015
  27. maths

    Arrange 10 people in 5 rows in such a manner that there are 4 people in each row

    asked on September 16, 2015
  28. chemistry

    Treatment with sodium borohydride converts aldosterone A in to an optically inactive alditol. Ruff degradation of A from B, whose alditol is optically inactive. Ruff degradation of B from D - glycerol dehydration. Identify A and B. Please help urgently.

    asked on July 8, 2015
  29. maths

    The number of polynomial having zeroes as -2 and 5 is --------(A) 1 (B)2 (C) 3 (D) more than 3

    asked on July 6, 2015
  30. maths

    For which values of a and b , are the zeroes of q(x)=x3+ 2x2+a also the zeroes of the polynomial p (x)= x5 -x4-4x3+3x2+3x+b? Which zeroes of p (x) are not the zeroes of q (x)?

    asked on July 5, 2015
  31. maths

    When 6 boys were admitted and 6 girls left the %of boys increased from 60% to 75% . Find the original no. Of boys and girls in the clasa

    asked on July 5, 2015
  32. maths

    If lemon is divided into four equal parts then find the total surface area of one part of lemon

    asked on December 25, 2014
  33. math

    Fill up the grid with the help of clues given below-

    asked on June 2, 2014
  34. Science

    Express mass of the Earth in unit of M. Take ME = 6 x 1024kg. The apparent magnitude of the sun is £‘ 26.81 and that of another star is£‘1.81. How much brighter the sun is with respect to that star ?

    asked on December 2, 2012
  35. chemistry

    how many liters of carbon dioxide produce when 6kg sodiumcarbonate react with excess hcl at 37 c

    asked on December 11, 2011
  36. Gr.12 Chemistry

    What will happen if an iron spoon is used to stir an AgCl solution?

    asked on September 18, 2018
  37. Maths

    A tetrahedeon is a four sided object .each side or face is an equilateral rriangle . the number 1,2,3&4 are used to number the different faces. A trial consist of rolling the retrahedron and reading the number that face down then p(4) is____

    asked on July 31, 2018
  38. Maths

    If the sum of circumferences of two circles wirh radii r1 & r2 is equal to the circumference of a circle of radius r, then what is true 1 r1+ r2 = r or sum of their squares= r2

    asked on December 26, 2017
  39. Maths

    If a cone of radius r and slant height 2r is surmounted on a cone having radius 2r and slant height 4r then find total surface area of solid

    asked on December 8, 2017
  40. Maths

    if a spherical medicine with radius r is broken down in to 1000 spherical small tablets then the css of original spherical medicine will become---- times

    asked on November 22, 2017
  41. Maths

    The diameter and length of a roller are 84cm and 120 cm respectively in how many revolution can the roller level the playground of area 1584 Sq meter

    asked on August 28, 2017
  42. Maths

    In trapezium ABCD AB Parallel to CD diagonal intersect at O(AC and BD)how can we prove that AOD and COD are similar

    asked on August 25, 2017
  43. Maths

    (Cos/1+cosec) + (sin/ 1+cot ) = sin + cos prove that

    asked on August 19, 2017
  44. Maths

    What is added to 5,9,17,27 to be in proportion

    asked on August 11, 2017
  45. Maths

    Cos^4(ΞΈ)/cos^2(Ξ±) + sin^4(ΞΈ)/ sin^2(Ξ±)=1 Prove that cos^4 alpha/cos^ thetha + sin^4alpha/ sin^2thetha= 1

    asked on July 5, 2017
  46. Maths

    Cos4theta/cos2alpha + sin4theta/ sin2alpha=1 prove that

    asked on July 4, 2017
  47. Science

    Which is more harmful tannin or caffeine?

    asked on March 30, 2017
  48. Math

    Find the three rational number of 5 and -2

    asked on March 23, 2017
  49. Maths

    The party of kejriwal walks from gwalior to Bhuvneshwar. They first walk straight for 150km and then turn 45 ddegree towards Varansi and again go straight for 120km how for have they travelled from the initial place. Please show the method.

    asked on March 23, 2017
  50. Maths

    In a cricket, a bowler throws a ball at the height 5m. A ball bounces on the pitch at 8m away. A wicket keeper catches this ball from 5m away at the height of 8m. How much distance the ball has covered after pitch. Please show the method.

    asked on March 23, 2017
  51. Maths

    (1+a+b+c)(1+ 1/a +1/b +1/c )= 16 then find a+b+c. Show the method

    asked on March 23, 2017
  52. Maths

    10 marks add to each of the 12th standard students marks due to poor result which of the following measure does not change? (A)mean (b) median (c) mode(d) standard deviation

    asked on March 19, 2017
  53. Maths

    At present what you are answering my question ,what is the probability of getting 1 out of 1 marks

    asked on March 18, 2017
  54. Maths

    What is the probability of the question that you are answering To get 1Mark out of 1mark in that question.

    asked on March 18, 2017
  55. Maths

    please explain this mcq- According to Euclid's division of Lemma, for a and 5 if a=5q+r is unique then r = ...... is not possible. A. 0 B. 2 C. 4 D. 6

    asked on March 18, 2017
  56. Science

    If 5 equal pieces of 25 ohm (omega) is joined in parallel then what is the equivalent resistance of it. Is it 5 or 1.please urgent

    asked on March 17, 2017
  57. maths

    Angle AOP is an acute angle .circle (O, OP ) is passing from A on the circle. Line l touches at A. N is perpendicular on line l from P. If AN =15 PN =9 then radius=-----

    asked on March 11, 2017
  58. Science

    Which tunable property is the great thrust in biological and medical sciences? A) physical B) chemical C) biological D) none

    asked on March 11, 2017
  59. Science

    What is the increment in power if current increases by 1% and resistance remain constant

    asked on March 11, 2017
  60. maths

    A wire from a square of area 324 cm2. If A wire from a semicircle then area becomes ------

    asked on March 7, 2017
  61. maths

    Angle AOP is an acute angle .circle (O, OP ) is passing from A. Line l touches at A. No is perpendicular on line l from P. If AN =15 PN =9 then radius=-----

    asked on March 7, 2017
  62. maths

    A two digit number is k times the sum of the digit. By interchanging the digits, Find the number is how many times its sum of the digits. Explain method

    asked on February 28, 2017
  63. maths

    AB touches circle (P, 12) at A and circle (Q, 5) at B. If PQ= 25 and A&B are either side of PQ tthen AB= -------- please explain with diagram

    asked on February 28, 2017
  64. maths

    The measure of the side of an equilateral triangle is 6cm. Then area of circle touching all three sides of given triangle is ------cm2 (a) pie (b) 3 pie (c) 12 pie (d) 36pie

    asked on February 25, 2017
  65. maths

    Angle of elevation of sun from earth is called? (A) sunset (b) sun's altitude (c) sunrise (d) none

    asked on February 25, 2017
  66. maths

    In triangle ABC a=8 b=9 c=7 then what is radius (a) 2.5 (b)3.5 (c)4.5 (d) 1.5

    asked on February 25, 2017
  67. maths

    How are the angles to be constructed in distinct half plane of a line segment for division of line segment? (A) obtuse (B) acute (c)right (d) A OR B

    asked on February 25, 2017
  68. maths

    Find two natural numbers in ratio 5:7 such that their l.c.m.is 120

    asked on February 22, 2017
  69. maths

    In a cricket, a bowler throws a ball at the height 5m. A ball bounces on the pitch at 8m away. A wicket keeper catches this ball from 5m away at the height of 8m. How much distance the ball has covered after pitch

    asked on February 3, 2017
  70. maths

    Find all possible pairs of two natural numbers whose sum is 77 and their g.c.f is 7

    asked on February 3, 2017
  71. maths

    Find two natural numbers in ratio 5:7 such that their lives. L C.m. is 210

    asked on February 3, 2017
  72. maths

    If six cubes of 10 cm edge are joined edged to edge then the surface area of the resulting cuboid is ------please show method

    asked on January 3, 2017
  73. maths

    In the green rectangular board of measure 20Γ—15 ,there is a white square with side 10 units. In the square, there is a orange right angle triangle of measure 3Γ—4Γ—5 . Find the probability that a dart strikes in orange portion

    asked on January 2, 2017
  74. Maths

    If the angles of triangle ABC are in increasing order and in an arithmetic progression then find sinB

    asked on December 29, 2016
  75. chemistry

    In equation He +Br2------>2HI why chemical rate of Br2 is taken as 1/2 . It's a reversible reaction. Please explain in detail. While H2 rate is taken as 1 why?

    asked on December 24, 2016
  76. maths

    If the graph of f (x)=ax2+bx+c then how do we know the value of b from the graph. We will come to know the value of a & c by the shape of the graph like open upward or downward but what about 'b' explain

    asked on December 21, 2016
  77. maths

    If a spherical medicine with radius R is broken down into 1000 spherical small tablets then the surface area of original medicine will become ----------times. Please show method how to do

    asked on December 16, 2016
  78. maths

    Find all possible pairs of two natural numbers whose sum is 77 and their g.c.d. is 7

    asked on December 8, 2016
  79. maths

    Find all possible pairs of two natural numbers whose sum is 77 and their g.c.d. is 7

    asked on December 6, 2016
  80. maths

    Find all possible pairs of two natural numbers whose sum is 77 and their g.c.d. is 7

    asked on December 6, 2016
  81. maths

    Find the two natural no in the ratio of 5:7 such that it's lam is 210 with method

    asked on November 23, 2016
  82. chemistry

    What is n+1+m for 4p orbital and what is n+l+m for 4p orbital

    asked on October 2, 2016
  83. maths

    How many circles are there whose central lines on X axis and passes through origin?

    asked on September 24, 2016
  84. maths

    If mewi=xi-25/10 and sigma fiui=20 and sigma fi=25 what is the mean?

    asked on September 23, 2016
  85. Math

    Rushil and Timmy shared a sum of money in the ratio 3:4. If Timmy received R 6 more than Rushil, find the total sum of money shared between them.

    asked on August 20, 2016
  86. statics

    A former student of ENG8101 wishes to weigh him/herself but only has access to a scale A with capacity limited to 400 N and a small 80-N spring dynamometer B. With the rig shown, he/she discovers that when he/she exerts a pull on the rope so that B

    asked on April 9, 2016
  87. Math

    66:36::18:?

    asked on March 26, 2016
  88. physics

    A horizontal, straight wire carrying 12 A current from east to west is in the earth's magnetic field B. At this place, B is parallel to the surface of the earth, points north and its magnitude is 0.04mT. Determine the Magnetic Force on 1 m length of wire.

    asked on March 23, 2016
  89. maths

    If the circumference of a base of a hemisphere is 2 pie then it's volume is ---' cm3

    asked on March 12, 2016
  90. science

    Metal obtained by chemical reduction is it iron or aluminium?

    asked on March 8, 2016
  91. English

    Are your guides kind to you? l asked (questions tag) (A) are they? (B) aren't they?

    asked on March 8, 2016
  92. maths

    Mr. Ahmed age is 47 yes and sani's age is 15 years .In how many years will Ahmed 's age be double of Sani's age?

    asked on March 3, 2016
  93. maths

    If 6 cubes of 10 cm edge are joined edged to edge then the surface area of the resulting cuboid is ----

    asked on February 24, 2016
  94. English

    I m silver and exact. I have no preconceptions. Whatever I see I swallow immediately. Just as it is, unmisted by love ordislike. I m not cruel, only truthful-.The eye of a llittle god, four cornered.Most of the time I meditate on the opposite wall.It is

    asked on February 22, 2016
  95. science

    Two wires if the same metal and of the same dia. And same length are connected in series 1st n then parallel, the ratio of energy produced during series n parallel connection will be ..... A. 1:2 B. 2:1 C. 1:4 D. 4:1

    asked on February 11, 2016
  96. science

    Two wires if the same metal and of the same dia. And same length are connected in series 1st n then parallel, the ratio of energy produced during series n parallel connection will be ..... A. 1:2 B. 2:1 C. 1:4 D. 4:1

    asked on February 10, 2016
  97. science

    Two wires if the same metal and of the same dia. And same length are connected in series 1st n then parallel, the ratio of energy produced during series n parallel connection will be ..... A. 1:2 B. 2:1 C. 1:4 D. 4:1

    asked on February 10, 2016
  98. maths

    In triangle PQR QM perpendicular to PR, RN perpendicular to PQR, H is ortocentre of triangle PQR then PNHM is -----

    asked on February 6, 2016
  99. maths

    In triangle PQR QM perpendicular to PR, RN perpendicular to PQR, H is ortocentre of triangle PQR then PNHM is -----

    asked on February 4, 2016
  100. maths

    The area of the triangle made by the line x/a + y/b = 1 with the coordinate axis is ------how ?

    asked on February 4, 2016

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