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KATRIN_1 [288]
2 years ago
15

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by

probability theory?
A. 10
B. 15
C. 25
D. 20
Mathematics
2 answers:
zmey [24]2 years ago
6 0
C is the correct answer.

The more trials of an experiment that are performed, the closer the experimental probability is to the theoretical probability.  Therefore the choice with the most trials, C, is the correct answer.
Helen [10]2 years ago
3 0

Answer:

C. 25

Step-by-step explanation:

(APEX)- For this multiple choice question, choose the option with the highest number. In this case it's 25. The question I just did had the options:

A-15

B-20

C-30

D-25

In this case the answer would be 30 because that's the most trials out of the options given.

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Nathan is out rafting. He rafts 16 miles with the river current. At the end of 16 miles, he turns around and rafts the same dist
Novosadov [1.4K]
S = d/t

st = d

t = d/s

The time going is t1.
The time returning is t2.
The total time is 4 hours, so we have t1 + t2 = 4

The speed of the current is c.
The speed going is 9 + c.
The speed returning is 9 - c.

t1 = 16/(9 + c)

t2 = 16/(9 - c)

t1 + t2 = 16/(9 + c) + 16/(9 - c)

4 = 16/(9 - c) + 16/(9 + c)

1 = 4/(9 - c) + 4/(9 + c)

(9 + c)(9 - c) = 4(9 - c) + 4(9 + c)

81 - c^2 = 36 - 4c + 36 + 4c

81 - c^2 = 72

c^2 = 9

c^2 - 9 = 0

(c + 3)(c - 3) = 0

c + 3 = 0   or   c - 3 = 0

c = -3   or   c = 3

We discard the negative answer, and we get c = 3.

The speed of the current is 3 mph.
7 0
2 years ago
Read 2 more answers
Serena is single. She purchased her principal residence three years ago. She lived in the home until she sold it at a $300,000 g
Lesechka [4]

Answer: Long -term capital gain

Step-by-step explanation:

Serena is single, so based on the Taxpayer Relief Act of 1997, she would pay no capital gains tax on the first $250,000 gain.

Therefore, $300,000 - $250,000 =  $50,000

<em>The remaining $50,000 gain is taxable because of her being single and it has been her principal residence for three years.</em>

7 0
2 years ago
Joanie is organizing her closet. She has 3 times as many black shirts as gray shirts, plus 3 new black shirts she just bought. S
marin [14]

Answer:

Option A. 2

Step-by-step explanation:

To solve this problem we can write equations for each shirt color.

Let's call:

b = black shirts

g = gray shirts

w = white shirts

B = brown shirts

If you have 3 times more black shirts than gray shirts and buy 3 more black shirts then:

b = 3g +3     (i)

If you have 5 times more white shirts than gray shirts and gave a white shirt then:

w = 5g -1      (ii)

It has 2 times more gray shirts than brown camsas, then:

g = 2B         (iii)

It has the same amount of black and white shirts

b = w            (iv)

We want to find the number of gray shirts.

Then replace (iv) in (ii)

b = 5g -1        (v)

Now substitute (v) into (i) and clear g.

5g -1 = 3g +3\\\\5g -3g = 3 +1\\\\2g = 4\\\\g = 2

Joan has 2 gray shirts

5 0
2 years ago
Lola tossed a coin twice. She made a tree diagram to show the possible outcomes. Which tree diagram shows the sample space for t
trapecia [35]

Answer:

Sample space for two tosses of a coin [HH, TT, HT,TH]

Step-by-step explanation:

Im sorry if you got it wrong :(

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8 0
2 years ago
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What is the step by step solution to 30m=80+22m thank you
ratelena [41]

Answer:

-10

Step-by-step explanation:

30m - 22m =80 therefore m is equal to -10

8 0
2 years ago
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