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raketka [301]
3 years ago
6

Use the quadratic formula to determine the exact solutions to the equation. 2x^2−5x+1=0

Mathematics
1 answer:
djverab [1.8K]3 years ago
3 0

Answer:

<u>5±√17</u>                    

   4

Step-by-step explanation:

2x^2−5x+1=0

<u>5 ±√25 - 4 (2)(1)      </u>=  <u> 5±√17  </u>

       2 ( 2)                        4

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Please I beg you help me
Elena L [17]

Answer:

Option D

Step-by-step explanation:

Going through the choices will help determine which option best simulates the random selection of a voter.

<u>Flip a coin three times, and assign outcomes as follows: HHH, HHT, or HTH = Nava; HTT, THH, or THT = Jensen; TTH = Moretti, TTT = Chang.</u>

Given that it is a random selection of the 4 candidates, it means the probability of choosing either one of them is equivalent. From the option, it can be found that Nava and Jensen have a higher chance of being voted than Moretti and Chang, which would not fit the criteria of being randomly selected.

<u>Roll a number cube, and assign outcomes as follows: 1 or 2 = Nava, 3 or 4 = Jensen, 5 = Moretti, 6 = Chang.</u>

Again, Nava and Jensen have a higher chance of being voted than Moretti and Chang. Therefore, this is not the correct option to simulate random selections of the 4 candidates.

<u>Roll a number cube, and assign outcomes as follows: 1, 2, or 3 = Nava, 4 = Jensen, 5 = Moretti, 6 = Chang.</u>

Nava has a higher chance of being voted, so this option does not fit the stimulation.

<u>Flip a coin twice, and assign outcomes as follows: HH = Nava, HT = Jensen, TH = Moretti, TT = Chang</u>

In this scenario, all 4 candidates have an equal chance of being voted, so this option would best simulate the random selection of a voter from the city.

Hope this helps :)

8 0
3 years ago
Geometry isnt my best subject. Can someone please help me?
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Answer:

3.

Step-by-step explanation:

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2/10 = x/15

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Step-by-step explanation:

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Step-by-step explanation:

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