Consider the arithmetic series -6+1+8+15+
find the least number of terms so that the sum of the series is greater than 1.
i tried to solve this problem, however, i come to the point when i have this expression:

it can't be solved because of an insane answer.
!

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

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