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alekssr [168]
3 years ago
6

Circumference of a circular disc is 157 cm, find its radius​

Mathematics
2 answers:
Zielflug [23.3K]3 years ago
7 0

Answer:

Owwwww would be a good time

just olya [345]3 years ago
7 0
Circumference = 2πr

Radius:

157 = 2πr

157/2π = r

r = 157/2π or 24.99 (nearest hundredth)
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Answer:

See proof below

Step-by-step explanation:

We have to verify that if we substitute a_n=4^n+2(-1)^n in the equation a_n=3a_{n-1}+4a_{n-2} the equality is true.

Let's substitute first in the right hand side:

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Now we use the distributive laws. Also, note that (-1)^{n-1}=\frac{1}{-1}(-1)^n=(-1)(-1)^{n} (this also works when the power is n-2).

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4 0
3 years ago
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