Posts by manish

Total # Posts: 35

  1. Math

    If loga+ logb=logab show that (a+b)²-(a-b)²=4ab
  2. Maths

    What is the degree covered by the minute hand if the clock from 5pm to 5:20pm....
  3. trigonometry

    If A + B + C = ?, prove that: ( sin2A + sin2B + sin2C ) / ( sinA + sinB + sinC ) = 8 sin(A/2) sin(B/2) sin(C/2)
  4. Math

    If sin (theta+24)=costheta where theta is acute angle .find theta
  5. maths

    OPQR is a rhombus , three of whose vertices lie on a circle with centre O.If the area of the rhombus is 32 root 3cm square ,find the radius of the circle
  6. Math

    The difference of two numbers is 4. Three Times the smaller number is 4 more than twice the larger number. Find the numbers.
  7. Math

    ?510
  8. maths

    Write a pythagorean triplet whose smallest number is 6
  9. Math

    the angle of elevation of a ladder leaning against a wall is 60° and the foot of the ladder is 5.8m away from the wall. The length of the ladder is?
  10. Maths

    Find the number if 1/2 of which exceeds 1/3 by 4
  11. Science

    A car is braked so that it slows down with a uniform retardation from 15m/s to 7m/s while it travels a distance of 88m. If a car continues to slow down at the same rate, after what further distance will it be brought to rest?
  12. Maths

    if the radius of a sphere is increased by 10%, prove that its volume will be increased by33.1%.
  13. math

    If lines 7x-2y+10=0 and 7x+2y-10=0 forms an isoceles triangle with the line y=2. Then what is the area of the triangle. Pls help
  14. math

    What is the equation of the chord of the circle x^2+y^2=16, passing through (2,3). Pls help!
  15. math

    By selling some goods at Rs 31, a salesman loses 7% on his output. Find the % profit or loss, when he sells the same at Rs 35? Pls help
  16. math

    find thd radius whose s.a. is 154c.m
  17. Math

    20km
  18. Math

    A man drove his car northward,then turned left and drove 10km and again turned left and drove 20km.He found himself 10km west of his starting point.How far did he drive northward initially?
  19. Physics

    A car is braked so that it slows down with uniform retardation from 15 m/s to 7 m/s while it travels a distance of 88 m. If the car continues to slow down at the same rate, after what further distance will it be brought to rest?
  20. Jkr public school

    mole fraction of solute is 0.4 what is molality of solution
  21. MATH

    there are 400 students at smith Elementary school 1/4 of the students are in fourth and fifth grade, 1/10 of the students are in grade 3, 2/8 are in second grade and 2/5 are in first grade . How many kids are in each grade? (4th and 5th have an equal amount)
  22. math

    65=A; 70=f; 75=k; 80=p; 85=u 90=z 66=B; 71=g; 76=l; 81=q; 86=v; 67=c; 72=h; 77=m; 82=r; 87=w; 68=d; 73=i; 78=n; 83=s; 88=x; 69=e; 74=j; 79=o; 84=t; 89=y 95-65=25; so how can be 26 values from 65 to 95;
  23. Physics

    what is the final temperature of mixture, if 100gm of ice at 0 degree celcius into 100gm of water at 20 degree celcius in an iron vessel of mass 100gm.(specific heat of iron=0.1)
  24. Chemistry

    1Ñ21Ô31Ñ6 1Ñ01Ñ61Ñ41Ó01Ð31Ó3 1Ñ41Ó01Ð11Ñ8 1Î91Ó9 1Ï41Ó01&...
  25. physics

    First of all, Henry cannot be right because the ball was "thrown" at the ground. His formula is only valid if it was free fall. However, the ball gained acceleration from the throw. You have to use energy formulas. I have a similar question on my worksheet, but I don...
  26. trig

    Tan75/2
  27. trig

    15-8?3
  28. math

    solve[1.67*10^(-7x)-10^(-6055x)]
  29. geometry

    How can we find the area of a triangle using a geoboard
  30. calculus 2

    439.32
  31. business

    ) FIVE JOBS ARE SCHEDULED IN TWO MACHINES IN A MANUFACTURING SHOP. AL FIVE JOBS ARE TO UNDERGO PROCESSING IN BOTH THE MACHINES SEQUENTIALLY PROCESSING TIMES IN MINUTES JOB NO MACHINES1 MACHINE 2 1 4 7 2 6 3 3 2 3 4 7 7 5 8 6 A) IDENTIFY THE BEST SEQUENCE USING JOHNSON’S ...
  32. finance (capital to corporations)

    'A' is the answer
  33. math

    if i buy 2 mouse on january 1 1998 which is 1 male and 1 famale the female mouse gives birth every two month 1 male and 1 female the same circle happens with all the female mice for 2 year i need the know the total number for mice because i need to sell them on january 1 2000
  34. math

    one of 2 numbers that can be both the perimeter and the area of the same rectangle
  35. physics helppp!

    Nice question