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spayn [35]
3 years ago
7

One question I need help with, I would really appreciate the help.

Mathematics
1 answer:
LuckyWell [14K]3 years ago
4 0

At first, she had  +2y  in the upper and  -5y  in the lower.

She multiplied the upper by  5 .  Then she had  +10y in the upper.

She should multiply the lower by  2 .  Then she'll have  -10y
there.  She'll be able to add the two equations, and the 'y's will
go away.  She'll be left with a single equation with only 'x' in it,
and she can solve that one for the value of 'x'.

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A. True. Because you will be able to relate to them. Hope I helped!
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Find the sum of a finite geometric sequence from n = 1 to n = 8, using the expression −2(3)^n − 1.
Kazeer [188]
The sum if the geometric sequence given by:
an=-2(3)^(n-1)
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an=-2
when n=2
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when n=3
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when n=4
a4=-54

when n=5
a5=-162

when n=6
a6=-486

when n=7
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when n=8
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3 years ago
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The numbers 7, 11, 12, 13, 14, 18, 21, 23, 27, and 29 are written on separate cards, and the cards are placed on a table with th
kaheart [24]

Answer:

3/10

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<em>Step 2 : Identify the favourable (requires) outcomes and the total outcomes</em>

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7 0
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Answer:

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