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lidiya [134]
3 years ago
5

Can anyone help me with these 3 questions. Serious answers only

Mathematics
1 answer:
Sindrei [870]3 years ago
3 0
9
9 + 5 + 6 + 3 + 3 + 2 + 2 + 4 = 34
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Five hundred ten of 650 high school students said that pizza was their favorite food in the school cafeteria.
ICE Princess25 [194]

If Five hundred ten of 650 high school students said that pizza was their favorite food. The margin of error is 0.0322.

<h3>Margin of error</h3>

Given:

Sample proportion=Five hundred ten=510

Sample size=650

Hence:

Margin of error=z×√p×(1-p)/n

Margin of error=2√510/650× (1-510/650)÷650

Margin of error=2√0.78461538×(1-0.78461538)÷650

Margin of error=2√0.78461538×0.21538462÷650

Margin of error=2√0.168994085÷650

Margin of error=2√0.0002599909

Margin of error=0.0322

Therefore the correct option is D.

Learn more about margin of error here:brainly.com/question/24289590

#SPJ1

7 0
2 years ago
Please help i’ll give brainliest thanks
frosja888 [35]

Step-by-step explanation:

It's Mount Everest .It is located in Nepal.You can trust in my answer as it ln my home country.

5 0
3 years ago
Which of the following is the best definition of the probility of a certain outcome of an event
BARSIC [14]

Answer:

Out of all the options that are presented above the one that represents the best definition of the probability of a certain outcome of an event is answer choice

D. Successful outcome divided by possible outcomes

HOPE THIS HELPED!!!!! XD

8 0
3 years ago
Read 2 more answers
4 people can stay at a hotel for a week for 42£. Find the hotel cost bill for 3
satela [25.4K]

Answer:

31.5

Step-by-step explanation:

divide 42 by 4 you would get 10.5, then multiple 10.5 by 3 and you would get 31.5 thats the answer

4 0
2 years ago
Divide (-3х + 4 + 18х^2 )by (5 + 6x)
Leokris [45]

Answer:

The division will be represented as:

\frac{18x^{2}-3x+4}{6x+5}=(3x-3)+\frac{19}{6x+5}

Step-by-step explanation:

1) Let's find a number with a variable that multiplied by 6x gives as 18x². It will be 3x, because (6x+5)3x=18x²+15x.

Now, let's subtstract:

(18x^{2}-3x+4)-(18x^{2}+15x)=-18x+4

2) Let's find a number with a variable that multiplied by 6x gives as -18x. It will be -3, because (6x+5)(-3)=-18x-15.

Now, let's subtstract:

(-18x+4)-(-18x-15)=19  

Therefore, the division will be represented as:

\frac{18x^{2}-3x+4}{6x+5}=(3x-3)+\frac{19}{6x+5}

I hope it helps you!    

5 0
3 years ago
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