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adoni [48]
3 years ago
7

HELP With this question

Mathematics
1 answer:
ahrayia [7]3 years ago
6 0

Answer:

Step-by-step explanation:

sin 60=CB/18

\frac{\sqrt{3} }{2} =\frac{CB}{18} \\CB=9\sqrt{3}

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1)\text{   }N_t\text{ = 90\lparen}\frac{1}{2})^{\frac{t}{17.5}}

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\begin{gathered} N_t\text{ = N}_0(\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}} \\ where\text{ N}_t\text{ = amount remaining} \\ N_0\text{ = initial amount} \\ t_{\frac{1}{2}\text{ }}\text{ = half-life} \end{gathered}N_t\text{ = 90\lparen}\frac{1}{2})^{\frac{t}{17.5}}

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What is the following sum in simplest form - see attached.
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