Sarah Akin

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Sarah provided a contribution 3 years ago

Question 2551 | Mathematics Past Questions

F = \(\cfrac{a}{1-r}\), \(a=?, r=?\)
To find sum to infinity, \(a\) and \(r\) are required:
\(ar = -\frac{1}{2}\)...(1)
\(ar^2 = \frac{1}{4}\)...(2)
Divide equ 2 by 1:
\(\cfrac{ar^2}{ar} = \cfrac{\frac{1}{4}}{-\frac{1}{2}}\)
\(r = -\frac{1}{2}\)
Then input the value of \(r\) in one of the equ \(a = 1\):
This gives us: \(\frac{1}{1-\frac{1}{2}} = \frac{2}{3}\)

Sarah provided a contribution 3 years ago

Question 2545 | Mathematics Past Questions

Sorry i mean after converting the two bases to base ten then u convert ur answer to base i.e 36 base ten = 210 base four

Sarah provided a contribution 3 years ago

Question 2545 | Mathematics Past Questions

Convert base 4 and base 2 to base 10 then convert to ten back