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charle [14.2K]
2 years ago
12

Which relationships have the same constant of proportionality between "y" and "x" as the equation: y = 5/2x?

Mathematics
1 answer:
Marta_Voda [28]2 years ago
7 0

Answer:

The correct answer is C

Step-by-step explanation:

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How do I find a2 and a3 for the following geometric sequence? 54, a2, a3, 128
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The formula for the nth term of a geometric sequence:
a_n=a_1 \times r^{n-1}
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54, a_2, a_3, 128 \\ \\
a_1=54 \\
a_4=128 \\ \\
a_n=a_1 \times r^{n-1} \\
a_4=a_1 \times r^3 \\
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a_2=a_1 \times r= 54 \times \frac{4}{3}=18 \times 4=72 \\
a_3=a_2 \times r=72 \times \frac{4}{3}=24 \times 4=96 \\ \\
\boxed{a_2=72, a_3=96}
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so theoretical probablity=20/100=2/10=0.2=20%
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