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mina [271]
3 years ago
11

6/12+6/12 and simplify it

Mathematics
2 answers:
erica [24]3 years ago
7 0
Hey there, since we already have common denominators (the common denominators are 12) we are going to keep the denominator the same and add the numerators, 6+6=12. So, we have 12/12. And you asked to simplify it so 12/12=1. Therefore, 6/12+6/12=1. Hoped I helped. :)
Bezzdna [24]3 years ago
4 0
Its 1 whole because if u add the numerator 6+6 its 12 and the denominator dtays the same so it would be 12/12 which equals 1
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Answer:

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Step-by-step explanation:

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Look at picture ! Determine the number of sides for the 6th shape in this pattern.
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6 0
2 years ago
Please help! see attached
nikdorinn [45]

Answer:

  1. The lowest value of the confidence interval is 0.5262 or 52.62%
  2. The highest value of the confidence interval is 0.5538 or 55.38%

Step-by-step explanation:

Here you estimate the proportion of people in the population that said did not have children under 18 living at home.It can also be given as a percentage.

The general expression to apply here is;

C.I=p+-z*\sqrt{\frac{p(1-p)}{n} }

where ;

p=sample proportion

n=sample size

z*=value of z* from the standard normal distribution for 95% confidence level

Given;

n=5000

<u>Find p</u>

From the question 54% of people chosen said they did not have children under 18 living at home

\frac{54}{100} *5000 = 2700\\\\p=\frac{2700}{5000} =0.54

<u>To calculate the 95% confidence interval, follow the steps below;</u>

  • Find the value of z* from the z*-value table

The value of z* from the table is 1.96

  • calculate the sample proportion p

The value of p=0.54 as calculated above

  • Find p(1-p)

0.54(1-0.54)=0.2484

  • Find p(1-p)/n

Divide the value of p(1-p) with the sample size, n

\frac{0.2448}{5000} =0.00004968

  • Find the square-root of p(1-p)/n

=\sqrt{0.00004968} =0.007048

  • Find the margin of error

Here multiply the square-root of p(1-p)/n by the z*

=0.007048*1.96=0.0138

The 95% confidence interval for the lower end value is p-margin of error

=0.54-0.0138=0.5262

The 95% confidence interval for the upper end value is p+margin of error

0.54+0.0138=0.5538

7 0
3 years ago
Read 2 more answers
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