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Define latent heat of fusion 

Factories:- 2x3 - 9x2 + x + 12

Snaya bought a new building for her house. She wents to put up a sign board of her company on the roof of the building. From a pointP on the ground level, the angle of elevation of the roof of the building is 30°and angle of elevation of the sign board is 45°. The point P is at the distance of 24m from the base of the building. 
(√3=1.732)
Based on the given information answer the following questions:
1) what will be the hight if building without sign board ?
2) what will be the hight if building with the  sign board?

3) what will be the  hight if sign board 
4) what will be the distance of the point Pfrom the top of the sign board ?

2+3

A chord of a circle is equal to the radius of the circle then the angle subtended by the chord at the point of major arc is

A tent is of the shape of a right circular cylinder upto a height of 3m and then becomes a right circular cone with a maximum height of 13.5m above the ground. Calculate the cost of painting the inner side of the tent at the rate of ₹2 per square metre, if the radius of the base is 14 metres

If a,b and c are interior angles of a triangle ABC,then show that 
Sin(b+c)÷2=cos(a÷2)

How are the lungs design ef in humans being to maximise the area for exchange  of gases

Check whether 8 
n
  can end with the digit 0 for any natural number n.

What is redox reaction 

Draw the linear graph for the following equations:
(a) x + 5y=3
(b) x = 2y

Show that for any set A and B
A=(A intersection B) union (A-B) and A union (B-A)=(A union B)

A container shape like a right circular cylinder having diameter 12 cm and height 15 cm is follow ice cream the ice cream is to be failed into cons of height 12 cm and diameter 6 CM having spherical shaped on the top of find the number of each coins which can be filled with ice cream

A pen stand made of wood in the shape of cuboid with four conical depression and the cubical depression to hold the pens and pens respectively the diameter of cube are 10 cm 5 cm and 4 cm the radius of each conical depression is 0.5 cm and death is 2.1 CM the edge of cubical depression is 3 cm find the volume of the wood in the entire stand

Find the perimeter of a sector of a circle with radius 18 cm and central angle 42°

The lateral surface area of a whole cylinder is 4224 CM square it is cut along its height and a rectangular sheet of with 33 cm is formed find the perimeter of the rectangular sheet

X+3)x^+x+30(

Find the equation of a if 2x^2+ay^2-3x+2y-1=0 represents a circle and also find the radius and centre 

construct the following quadrilateral.  
pqrs in which PQ 6 CM QR 4 cm angle p 45 degree angle q 150 degree and Angle as 95 degree