What is the diameter of a circle of area 3850 m square

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cfgghbjn bvcdftfghjnbgvfcdrtrfytgyuhuji

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of

- (2, -7)

- lines r and s and lines t and u must be parallel