The sum of the 8 terms of the series 1-1-3-5- ... -13 is -48
The given sequence is:
1,-1,-3, . . -13
and there are 8 terms.
The related series of this sequence is:
1-1-3-5- ... -13
Notice that the series is an arithmetic series with:
first term, a(1) = 1
common difference, d = -1 - (1) = -2
last term, a(8) = -13
To find the sum of the series, use the sum formula:
S(n) = n/2 [(a(1) + a(n)]
Substitute n = 8, a(1) = 1, a(n) = a(8) = -13 into the formula:
S(8) = 8/2 [1 + (-13)]
S(9) = 4 . (-12) = -48
Learn more about sum of a series here:
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2x=-12 simplified, the expression or solving for X would be X=-6
There are a total of 10 + 4 = 14 kg of syrup.
4 out of the 14 kg are sugar so the percentage is:
4/14 = 28.6%
Edit: The answer is correct. I don’t know why it was flagged as incorrect.
The total amount of ingredients in the syrup is 14 kg. Of the 14 kg, 4 kg is composed of sugar. So, 4 kg of sugar divided by the 14 kg of total weight will give you the percentage of sugar.
4/14 = 0.285714285714286
With an additional significant figure, the answer is 28.57%
<span>c.<span>Loan I's monthly payment will be $11.88 smaller than Loan H's.</span></span>
Youre missing a graph, but luckily I figured it out.
B Is correct.
C is correct. Domain: (−∞,∞)