Answer:
B (-3)
Step-by-step explanation:
This isjust an equation. There is nothing else to it
You're very close. The answers you've selected are correct, but there's one third series that's also alternating. Choice C is also an answer due to the term.
Any alternating series is in the form or where is any sequence.
Choice E comes close, but the 2n being the exponent means that we don't have alternating signs (positive, negative, positive negative, etc). Why is this? Well notice how 2n is even regardless of what integer n we pick. Raising any negative number to an even power results in a positive value.
Eg: (-7)^2 = 49 and (-3)^4 = 81
This means that all of the terms of sequence E are going to be positive. The terms do not bounce back and forth between positive and negative.
Put another way,
So
And it's why choice E is not one of the answers.
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<h3>To summarize:</h3><h3>The 3 answers are A, C, and D</h3>
9514 1404 393
Answer:
q = 40
Step-by-step explanation:
When the quadratic has roots p and r, it can be factored as ...
(x -p)(x -r) = x² -(p+r)x +pr
So, the sum of the roots is 14, and their difference is 6. This lets us find the roots from ...
p + r = 14
p - r = 6
2p = 20 . . . add the two equations
p = 10
r = 14 -p = 4
The value of interest is then ...
q = pr = (10)(4)
q = 40
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The graph shows the roots to be 4 and 10, as we found.
Answer:
567
Step-by-step explanation:
You would divide 819 and 13 which equals 63. Then, multiply 63x9
then your answer is 567