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This is a sequence: 2,4,7,11,16. Find the Nth term

1/2n 2 + 1/2n + 1 This is a hard one and maybe closer to a maths challenge question. It is easier to explain in person. First common difference is 1 then 2 then 3 and so on. The second common difference is 1...
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Answered by Zia F. • Maths tutor
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express (3x + 5)/(x^2 + 2x - 15) - 2/(x - 3) as a single fraction its simplest form

(x - 5) / (x 2 + 2x - 15)
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Answered by George H. • Maths tutor
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Diamond and Graphite are both giant covalent structures. If they are both made of carbon why does diamond have a higher melting point?

Although both are giant covalent structures, they have different structures. Diamond makes a 3d structure with each carbon attached to 4 other carbons so the only bond to break when melting it is the very st...
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Answered by Zia F. • Chemistry tutor
29268 Views

The Polar Bear is the largest species of bear in the world. With regards to adaptation, suggest a reason for this.

The habitat of the Polar Bears is the arctic. This is a much colder climate than the other species of bear found in the wild. Therefore the Polar Bear has adapted to live in this colder climate. One adaptati...
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Answered by Zia F. • Biology tutor
6562 Views

Examine the presentation of the male characters in Mary Shelley's Frankenstein

Shelley presents her protagonist Victor Frankenstein as being entirely innocent throughout his youth, as he claims about his parents, 'I was their plaything- their child, the innocent and helpless creature.....
GI
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