# Posts by manpreet

Total # Posts: 22

**differential calculas**

A person is running at the rate of 13.0 m/s on a horizontal street directly toward the foot of a tower 33.0 m high. How fast is the person approaching the top of the tower when 15.0 m from the foot of the tower?

**Math**

An arithmetic progression has 10 terms. Sum of the 10 terms is 220. Sum of the odd terms is 100. Find the first term and common difference.

**Rounding up and down**

1. Lily moves 0.337 tonnes of sand to make a sandpit how much is this to two decimal places? 2. Lily moves 0.5 tonnes of pebbles to decorate the flower bed. If this mass has been to one decimal place, which of these could be the actual mass of pebbles? A 0.351 tonnes B. 0.562 ...

**maths**

(sinθ+1)/(1-sinθ) =(tanθ+secθ)²

**maths-urgent**

rewrite the addition sum given below using digits. Each letter is used for a different digit. Answer the questions given below i) Which digit did you find first? ii) How did you find R and U? ........F.O.U.R ...........O.N.E ....T.H.R.E.E ....T.H.R.E.E _________ E.L.E.V.E.N ...

**maths**

rewrite the addition sum given below using digits. Each letter is used for a different digit. Answer the questions given below i) Which digit did you find first? ii) How did you find R and U? ........F.O.U.R ...........O.N.E ....T.H.R.E.E ....T.H.R.E.E _________ E.L.E.V.E.N ...

**maths**

i think there is some error in question

**maths**

find the equation of the line joining the origin to the point of intersection 4x+3y=8 and x+y=1

**maths**

Find the equation of the straight line passing through (3,-2) and making an angle of 60 degree with the positive direction of y-axis

**maths**

There is a rectangular table of size 21cm ×15 cm formed by 21 × 15 small squares of side 1cm each. Number of vertices of small squares through which a diagonal of the rectangular table passes is

**maths-urgent**

If the sums of n terms of 2 A.P. are in ratio (3n+5)/(5n+7), then find their nth terms ratio

**maths-urgent**

a metal block of length 4cm ,breadth 3cm and height 2.5 weighs 500g.what is the mass of a block of length 5cm,breadth 4cm made of the same metal.

**maths**

the ratio of the length of sides of equilateral triangle to the height is ?

**maths**

csa of a cone is twice the other cone if the slant height of the other cone is twice of first one then the ratio of their radius is

**maths**

a trader marks his goods 20% above the CP .He then sells them at a discount of 20% .If his CP is 550 what is his gain or loss and its percentage

**maths**

A villager Itwaari has a plot of land of the shape of a quadrilateral. The Gram Panchayat of the village decided to take over some portion of his plot from one of the corners to construct a Health Centre. Itwaari agrees to the above proposal with the condition that he should ...

**maths**

E is the mid-point of median AD of the triangle ABC and BE is produced to meet AC at F. Show that AF = 1 1/2 AC

**science**

reference point

**maths**

if cosx=-1/2,x lies in third quadrant, find sinx.

**dps**

If a and b are two unit vectors and θ is the angle between them, then a+b is a unit vector if θ is

**math**

don't known

**Roman Numerals**

VI+IV=IV

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