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dezoksy [38]
2 years ago
11

Need help with this triangle problem

Mathematics
1 answer:
Andrew [12]2 years ago
7 0

Its an acute triangle by angles.

Its a NONE by sides.

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Plzzzzzzzz! A suitcase lock has a code 4 symbols long. The symbols on the lock are a star, a square, a circle, a triangle, a lin
34kurt

Answer:

                \dfrac{1}{30}

Step-by-step explanation:

6 symbols and 4-symbol code so number of combinations wich doesn't contain the same symbol twice would be:

6•5•4•3 = 360

If code starts with a star followed by triangle that means only one posibility for first two symbols and code doesn't containing the same symbol twice means that left 4 symbols for next two.

So number of combinations of code starting with a star followed by triangle and doesn't containing the same symbol twice will be:

1•1•4•3 = 12

The probability that a randomly chosen code starts with a star followed by triangle and doesn't contain the same symbol twice:

\dfrac{1\cdot1\cdot4\cdot3}{6\cdot5\cdot4\cdot3}=\dfrac{1\cdot1}{6\cdot5}=\dfrac{1}{30}

7 0
3 years ago
What is the value of the expression below when z = 2?<br> 5z^2+3z+7
Marina CMI [18]

Answer: 33

5(2)² + 3(2) + 7

20 + 6 + 7

33

Hope this helps!

6 0
3 years ago
Also repost. Can you please help me with 2-4. Thanks (NEED HELP)
Olin [163]
-2. Because on the number line it goes -3 -2 -1 0 1 2 3 so if you count backwards from 2 it is -2
7 0
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What is Statistical inference?
rjkz [21]

Answer:

<em>Definition 1: The theory, methods, and practice of forming judgments about the parameters of a population and the reliability of statistical relationships, typically on the basis of random sampling.</em>

<em>Definition 2: The use of randomization in sampling allows for the analysis of results using the methods of statistical inference. Statistical inference is based on the laws of probability, and allows analysts to infer conclusions about a given population based on results observed through random sampling. Two of the key terms in statistical inference are parameter and statistic.</em>

Step-by-step explanation:

Hope this helps, have a good day. c;

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3 years ago
Read 2 more answers
Antonio had his hair cut at the salon. After he returned home, he realized he had accidentally tipped the stylist 114% of the co
stepan [7]
=>C

1.14*20.95=23.883
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3 years ago
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