Evaluate the middle term in the binomial expansion of (2x + 3y)^8.find the value
of this expansion by
substituting x= 1/3 and y=1/2 into the expansion.​

70

Step-by-step explanation:

The middle term of the binomial expansion of the given expression is

90720x^4y^4

Using x = 1/3 and y = 1/2, we get

90720(1/81)(1/16) = 70

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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)