3 years ago

Please Helpppppp

Mathematics

1 answer:

DENIUS [597]3 years ago

4 0

I believe the anser is 38.5 ft. :)

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What is 5x-y=-22 slope intercept form

Ivan

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-5x -5x

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---- ---- -----

-1 -1 -1

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kodGreya [7K]

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Very urgent!!!!!

Zinaida [17]

Answer:

number of terms=9

Step-by-step explanation:

$t_{1}=6\\t_{5}=18\\\\t_{n}=t_{1}+(n-1)d\\18=6+(5-1)d\\18-6=4d\\4d=12\\d=12/4=3\\s_{n}=162\\s_{n}=\frac{n}{2}[2t_{1}+(n-1)d]\\162=\frac{n}{2}[2(6)+(n-1)3]\\162 \times 2=n(12+3n-3)\\324=n(3n+9)\\3n^2+9n-324=0\\n^2+3n-108=0\\n^2+12n-9n-108=0\\n(n+12)-9(n+12)=0\\(n+12)(n-9)=0\\n=-12,9\\n=-12 (rejected)$

as number of terms can't be negative.

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