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icang [17]
2 years ago
7

I need help

Mathematics
2 answers:
andrezito [222]2 years ago
7 0

Step-by-step explanation:

here is the answer; feel free to ask for more help <3

zhenek [66]2 years ago
4 0

Answer:

10 miles

Step-by-step explanation:

35/7 ?/2   2x35=70/7=10 butterfly cross multiply and divide

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Anni [7]
a_1 = -5;\ a_2 = 20;\ a_3 = -80 \\\\a_2:a_1=r\ and\ a_3:a_2=r\\\\r=20:(-5)=-4\ check\ r=-80:20=-4\\\\a_n=a_1r^{n-1}\to a_n=-5\cdot(-4)^{n-1}=-5\cdot(-4)^{-1}\cdot(-4)^n\\\\=-5\cdot\left(-\dfrac{1}{4}\right)\cdot(-4)^n=\dfrac{5}{4}\cdot(-4)^n\\\\Answer:\boxed{a_n=-5\cdot(-4)^{n-1}\ other\ a_n=\frac{5}{4}\cdot(-4)^n}
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3 years ago
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