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A circular table top has diameter 140 cm. Calculate the area of the table top in cm² , giving your answer as a multiple of π.

Area of a circle = π r² r = (1/2) d = (1/2) * 140 = 70 area = π * (70)² = 4900 π cm²
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Answered by Sulem M. • Maths tutor
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How do I effectively close-read a passage from a novel studied in the exam? - GCSE English Literature

Student should read the passage once over to try and place it within the context of the novel. Highlight key terms in the question, e.g. a question asking how Steinbeck presents the relationship between Geor...
AH
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What is radioactivity?

Imagine a water ballon which is slowly filling up with water. The ballon is fine and intact when there's not much water in it but what happens when we fill it so much that it can no long hold all the water? ...
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Answered by Eoin B. • Physics tutor
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Explain the term 'direct democracy' (5)

Direct democracy involves people power, or the self-government of people, contrasting to a representative democracy by which representatives are elected in order to voice the opinions and interests of citize...
AR
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What is the chemical equation for aerobic respiration

6O 2 + C 6 H 12 O 6 ---> 6CO 2 + 6 H 2 O In words this is: Oxygen + Glucose ---> Carbon dioxide + Water Remember that in order to balanc the equation, everything has a 6 in front of it, APART from gluc...
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Answered by Mathew S. • Biology tutor
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