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SVETLANKA909090 [29]
3 years ago
11

P is the probability of a certain event. Which of the following indicates that P is certain to happen?

Mathematics
2 answers:
podryga [215]3 years ago
8 0
Note for probability, if it will never happen the P = 0. If it must happen P = 1.

So certain to happen:

C. P=1

8090 [49]3 years ago
8 0
The probability of the occurrence of an event ranges only from 0 to 1. Thus, eliminating the fourth choice, P = 100. If an event is not bound to happen, P = 0. If there are circumstances that may hinder it to happen, the probability is somewhere between the extremes. Lastly, if it certain to happen, the probability is 1. Therefore, the answer is letter C.
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<u>Step-by-step explanation:</u>

                  \left[\begin{array}{cc}2&1\\4&3\end{array}\right]=\left[\begin{array}{cc}1&0\\0&1\end{array}\right]

\dfrac{1}{2}Row\ 1\rightarrow\left[\begin{array}{cc}1&\frac{1}{2}\\4&3\end{array}\right]=\left[\begin{array}{cc}\frac{1}{2}&0\\0&1\end{array}\right]

Row\ 2 -4 \ Row\ 1\rightarrow \left[\begin{array}{cc}1&\frac{1}{2}\\0&1\end{array}\right]=\left[\begin{array}{cc}\frac{1}{2}&0\\-2&1\end{array}\right]

Row\ 1-\dfrac{1}{2}\ Row\ 2 \rightarrow \left[\begin{array}{cc}1&0\\0&1\end{array}\right]=\left[\begin{array}{cc}\frac{3}{2}&-\frac{1}{2}\\-2&1\end{array}\right]

5 0
3 years ago
A bookstore pays $12.75 for hardcover books and charges $29.95. What is the maximum percent of discount that it can offer while
Anna [14]

9514 1404 393

Answer:

  A.  40.7%

Step-by-step explanation:

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From $29.95, this represents a change of ...

  (17.75 -29.95)/29.95 × 100%

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The bookstore can offer a maximum discount of about 40.7%.

4 0
3 years ago
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Hope this helps:)

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3 years ago
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