Find an explicit formula for a sequence of the form a1, a2, a3, with the initial terms given below. 0, − 1 2 , 2 3 , − 3 4 , 4 5 , − 5 6 , 6 7

t(n) = (-1)^n * n/(n+1)

Step-by-step explanation:

First thing I'd say is that, the denominator happens to always be 1 more than the numerator including the the first term, which is 0/1

For that, we'd say the numerator = n, and since the denominator is 1 more than, we say it is = n + 1.

Then again, there is an alternating negative sign, that comes after every 2 terms. Note that when n is odd, the terms happen to be negative, but then, when n is even, the terms are positive.

Take a look at (−1)n, the exact same thing happened, and thus, we multiply each term by (−1)n so as to get the alternating negative sign.

Ultimately, we say that each term is in the form of

t(n) = (-1)^n * n/(n+1), Where n ≥ 0

b

step-by-step explanation:

the total is 23.97. 0.25% is off so you have to subtracting 25% from 100% and you will get 75% if you convert it to decimal you will get 0.75. you have to find the original because the formula is % times original = total.so you have the total and the % so you just have to plug it in.