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mestny [16]
3 years ago
13

Please study the graph and select all the true statements.

Mathematics
1 answer:
ad-work [718]3 years ago
4 0

you do k12 too? what a small world

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Find −2310+425. Write your answer as a mixed number in simplest form.
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A circular piece of wood with a diameter of 5 ft is shown below. A 2 ft square is
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Answer:

16 ft²

Step-by-step explanation:

Since we're told that 2 ft diameter was cut of the board. We use the formula for hollow circle to find the area.

Area of remaining body = area of full body - area of removed body.

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A multiple-choice test has 30 questions and each one has five possible answers, of which only one is correct. If all answers wer
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Then, selecting at random, the probability of getting a correct answer is equal to:

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Now, if out of 30 questions, we got 4 correct and 26 incorrect, the probability for a given combination is;

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Now, if we have N objects in total, the number of different combinations of K elements out of those N elements is

C = \frac{N!}{(N-K)!*K!}

In this case, N = 30 and K = 4.

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Then the probability of getting exactly 4 correct answers is:

P = (0.20^4)*(0.80^26)*27,405 = 0.13

5 0
3 years ago
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