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Find the sum to n terms of GP whose nth term is 3(2)^n-1
1. 1 answer
2. 561 views
sector of radius 7cm has an area of 34.3cm squared. What is the perimeter of the sector
1. 1 answer
2. 321 views
how you would collect pure water from a mixture of water and colourings. What technique would you use?
1. 1 answer
2. 215 views
a paper chromatography from a mixture of 2 substances. a and b were obtained using a solvent of propanone. substance b was found
1. 1 answer
2. 408 views
An integer is 5 more than another integer. Three times the bigger integer is 11 more than the square of the smaller integer.
1. 2 answers
2. 3,104 views

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i dont know about this question
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