3 years ago

Which of these numbers is composite?7,9,23,47,67

Mathematics

1 answer:

Tresset [83]3 years ago

8 0

Answer:9 is the only one

Step-by-step explanation:

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adoni [48]

answer:

(a).

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(b).

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Step-by-step explanation:

(a).

If centred at origin, centre is (0, 0)

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but g and f are 0:

${x}^{2} + {y}^{2} + c = 0 \\ but : \\ c = {g}^{2} + {f}^{2} - {r}^{2} \\ c = { - 25}$

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