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alex41 [277]
3 years ago
7

3. Identify the following as true or false. For those that are false, explain why they are false.

Mathematics
1 answer:
harkovskaia [24]3 years ago
4 0

Answer:

a:false

b:true

c:true

Step-by-step explanation:

a:the sum of all the probabilities in the distribution must be equal to one.

My apologies if any are wrong.

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Find the circumference of a circle that has an area of 452.16 square meters. (Use 3.1416 as the value of π.)
laila [671]
\bf \textit{area of a circle}\\\\
A=\pi r^2\quad 
\begin{cases}
r=radius\\
-----\\
A=452.16
\end{cases}\implies 452.16=\pi r^2\implies \cfrac{452.16}{\pi }=r^2
\\\\\\
\boxed{\sqrt{\cfrac{452.16}{\pi }}=r}\\\\
-------------------------------\\\\
\textit{circumference of a circle}\\\\
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so, is just that product, recall to use "<span>3.1416 as the value of π".</span>
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