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How to find surface area and volume of a cone

Surface area:We know that the base of a cone is a circle, which has a surface area of πr2, where r is the radiusThe rest of the area will be π, r and l (the slanted length) multiplied togetherA...

FF
Answered by Fruzsina F. Maths tutor
3522 Views

How to find the angle between two 3-dimensional vectors:

The formula to find the cosine of the angle is: cosA= u.v/|u|x|v|; 1.u.v means that you multiply the x coordinates together, then the y coordinates and the z coordinates,...

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Answered by Fruzsina F. Maths tutor
4514 Views

Find the concentration of calcium carbonate given that 25cm^3 of CaCO3 is neutralised by an average of 14cm^3 of 0.1 molar HCl .

Initially it helps to read over the question a couple of times underlining/ highlighting all important information ie. volumes and concentrations. Next it always helps to have a chemical equation to work ...

JO
Answered by Jan O. Chemistry tutor
3622 Views

Explain BF Skinners theory of Behaviourism

Skinner believed that children learn language in the same way that they learn their other behaviour and stated that this was through a system of positive and negative reinforcement. When a child imitates ...

KM
3615 Views

The equation of the line L1 is y = 3x – 2 The equation of the line L2 is 3y – 9x + 5 = 0 Show that these two lines are parallel.

In this question, you are being asked to show L1 and L2 are parallel. The equations of two parallel lines will have the same gradient. This is the number in front of the x term in the equation, but to com...

AW
Answered by Abigail W. Maths tutor
4373 Views

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