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Solve the simultaneous equations: 4x + 2y = 26 and 3x + 3y = 21

Let eq 1 = 4x + 2y = 26 eq 2 = 3x + 3y = 21 Using the elimination method: You need to make either the xs or ys have the same constant term in both equations( sign does not matter). In this case, we will make...
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Answered by Dermot N. • Maths tutor
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A four sided pyramid, with a vertical height of 10cm and the base 4cmx4cm is placed on the top of a cylinder with radius 1.5cm and a height of 15cm. What is the exposed surface area?

Bottom end of cylinder = 1.5 2 x pi = 7.07cm 2 Cylinder shaft surface area = 3 x pi x 15 = 141.4cm 2 Top end of cylinder exposed = 0 Base of pyramid exposed = (4 x 4) - 7.07 = 8.9cm 2 Sides of pyramid = (use...
GW
Answered by George W. • Maths tutor
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The mean mass of a squad of 19 hockey players is 82 kg A player of mass 93 kg joins the squad. Work out the mean mass of the squad now.

"Mean" stands for "average", so if you add the mass of all the players together, then divide by the amount of players, you get 82kg. [ (number of players) x (mean mass) = (sum of mass) ] ...
HH
Answered by Henry H. • Maths tutor
10442 Views

Describe Cloud Computing and give one advantage and one disadvantage of cloud computing for a business.

Cloud computing is the use of third party servers to store information online.An advantage of cloud computing is to be able to work collaboratively on documents. Cloud Computing is online meaning that multip...
MC
Answered by Maximillian C. • ICT tutor
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Name and explain 2 Moral/Ethical issues surrounding ICT.

One example of a Moral Issue surrounding ICT is how confidential people's data is. Many people need to have access to an individuals private data such as a school having the information about any child in th...
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Answered by Maximillian C. • ICT tutor
1631 Views