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A right-angle triangle has three sides (diagram would be included). Side A = 3cm; Side B = 7cm. What is the length of Side C (the hypotenuse)? Give your answer to 2 d.p.

Using Pythagoras' Theorem --> a 2 + b 2 = c 2 (or c = SqRT(a 2 + b 2 )) where c is the hypotenuse.Substitute a = 3; b = 7. So: 3 2 + 7 2 = c 2 9 + 49 = 58. SqRt(58) = 7.62. Side C = 7.62 cm
AS
Answered by Ashley S. • Maths tutor
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How far do you agree that the Civil War was the most significant factor in the centralisation of Communist power in the years 1918-28?

Civil War was the most important factor:-War Communism was implemented under the Civil War, which included nationalisation and requisitioning of grain-Famine due to War Communism considerably weakened the co...
AM
Answered by Alya M. • History tutor
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How far was Khrushchev able to bring about fundamental change to the system of government established by Stalin?

PLANKrushchev brought about fundamental change:-Initiated de-Stalinisation to reduce the influence of Stalin across the country-Decentralised power to local governments-Ended requisitioning-Secret Speech in ...
AM
Answered by Alya M. • History tutor
6147 Views

There are 12 counters in a bag. 1/2 are red, 1/3 of the remaining counters are blue. The rest are green. How many counters are green?

1/2 of 12 is 6 - 6 red counters. 6 remaining counters. 1/3 of 6 is 2 - 2 blue counters. 4 remaining counters - 4 green counters
NG
Answered by Nayan G. • Maths tutor
3121 Views

In a chess club there are x boys and y girls. If ten more boys join and one more girl joins, there is an equal amount of boys and girls. Knowing that y = 2x+2, Calculate x and y. [4 marks]

There are x boys and y girls. So x = boys, y = girls. Ten boys join so x + 10 = boys, one girl joins so y + 1 = girls. These values are said to be equal, so we construct an equation with x and y. x + 10 = y ...
BL
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