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Feliz [49]
3 years ago
10

Find the constant of variation k for the direct variation. 3x+5y=0

Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
5 0
If it is
y is diretly proportional to x

y=kx
solve for y

3x+5y=0
5y=-3x
y=-3/5x
y=kx
constant of variation is -3/5
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4 0
3 years ago
Write a rule for the nth term of the geometric sequence for which a1=−6 and a5=−486
patriot [66]

The geometric rule for the nth term of the geometric sequence for which a1 =−6 and a5=−486 is -6 × 3^(n - 1)

<h3>The nth term of a geometric sequence</h3>

First term, a1 = -6

Fifth term, a5 = -486

a5 = ar^(n - 1)

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-486 = -6r⁴

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r⁴ = 81

r = 4√81

r = 3

Geometric rule:

nth term = ar^(n-1)

nth term = -6 × 3^(n - 1)

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Step-by-step explanation:

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