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work out 64^2/3

solve 64 2/3 ... note X 2/3 = X 2 x 1/3 therefore 64 2/3 = (64 2 ) 1/3 = (4096) 1/3 = 16
PK
Answered by Patrick K. • Maths tutor
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Find the derivative of the function y = (2x + 12)/(1-x)

Using quotient rule, let u = 2x+12 and v = 1-x. Then we differentiate u and v separately, so u' = 2 and v' = -1. The formula for the quotient rule is: (vu' - uv')/v^2. Plugging in our values into this equati...
MJ
Answered by Mahreen J. • Maths tutor
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(edexcel style A-level) To what extent was leadership the main reason for the failure of chartism during the years 1839 — 1849?

A failure or lack of cohesive and organised leadership of the Chartist movement during the years 1839 to 1849 has often been cited as one of the main reasons that Chartism failed. The movement was made up of...
NG
Answered by Nia G. • History tutor
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Find the value of 9^(-1/2)

Find the value of 9 -1/2 . For this question we need to know indices rules. We apply two rules here as the power is negative and because it's a fraction. First, let's tackle the negative power rule. When the...
JY
Answered by Janifa Y. • Maths tutor
49000 Views

A student places equal masses of limestone rocks into two beakers. However, the student crushes the ones in one of the beakers to make a fine powder. Then, he adds hydrochloric acid to both of them. Which takes longer? Would one of them produce more CO2?

First of all let's think of which one would take longer. The one that would take longer would be the slower of the two reactions, and therefore would have a lower rate of reaction . So now we have to think: ...
YM
Answered by Yago M. • Chemistry tutor
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