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antoniya [11.8K]
2 years ago
15

A city has a population of 1300. If the city’s population grows 30%, what is its new population?

Mathematics
1 answer:
Alborosie2 years ago
6 0

Answer:

1699

Step-by-step explanation:

30/100*13000

Then add answer with 1300

eg 1300+399

I hope this explanation helps you.Also You can follow me.

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The triangles shown are similar. Which side of triangle JGH corresponds to side PM of triangle PMO?
user100 [1]

Answer:

The corresponding side is JG

Step-by-step explanation:

Given

JGH similar to PMO

Required

Determine the similar side to PM

To do this, we follow the naming convention of both triangle name, since there is no attachment to support the given parameters.

So:

By comparison: The corresponding side is JG

4 0
3 years ago
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Only the correct answer
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A carpenter has a piece of wood that is 10 yards long anda piece that is 5 feet long. how many feet of wood does the carpenter h
stellarik [79]
A piece of wood 10 yards long

and

A piece of wood 5 feet long

He has two pieces of wood. How much does he have in all? 

5+10 = 15

15 feet of wood
6 0
3 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
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