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garri49 [273]
3 years ago
13

The consumer price index is

Mathematics
1 answer:
nikklg [1K]3 years ago
6 0

Answer:

A tool to measure the changes in the prices of weighted average market basket of goods and services purchased by consumers, usually households.

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Simplify 2(5x – 4) + 3x
guapka [62]
To simplify, you must distribute the 2 into the 5x and -4 by multiplying 2 with 5x and 2 with -4.

<span>2(5x – 4) + 3x

2 x 5x = 10x

2 x -4 = -8

 You will get 10x - 8 + 3x

Now you must combine like terms or add like terms. In this case we must add 10x and 3x

10x + 3x = 13x

Finally the answer would be 13x - 8</span>
6 0
3 years ago
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Which angles are corresponding angles with angle 8?
Basile [38]

Answer:

<4 and <8

Step-by-step explanation:

Corresponding angles are at the same part of the intersection of

8 and 12 are corresponding angles

8 and 4 are corresponding angles

7 0
3 years ago
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The area of the trapezoid is 9 square centimeters.
Lana71 [14]

Answer:

Height : 3 cm

Step-by-step explanation:

The formula for a trapezoid is

<u> a+b</u> ×height

2

Rearrange for formula :

2 \times \frac{area}{ base + base }

2\frac{9}{ 4 + 2 }  = 3cm

7 0
2 years ago
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Among 420 randomly selected employees at a company, the mean number of hours of overtime worked per month is 10 hours and the st
kari74 [83]

The margin of error of the random selection is 0.20

The given parameters are:

n = 420 --- the sample size

\sigma = 1.6 --- the standard deviation

\bar x = 10 --- the mean

\alpha = 99\% --- the confidence level.

The margin of error (E) is calculated as follows:

E = z \times \sqrt{\frac{\sigma^2}{n}}

So, we have:

E = z \times \sqrt{\frac{1.6^2}{420}}

E = z \times \sqrt{\frac{2.56}{420}}

The z-value for 99% confidence level is 2.576.

Substitute 2.576 for z

E = 2.576 \times \sqrt{\frac{2.56}{420}}

E = 2.576 \times \sqrt{0.006095}

Take square roots

E = 2.576 \times 0.0781

Multiply

E = 0.2012

Approximate

E = 0.20

Hence, the margin of error is 0.20

Read more about margin of error at:

brainly.com/question/14396648

8 0
2 years ago
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In an election, Mr. Jones received 70% of the 1,500 votes cast. How many votes did Mr. Jones receive?
Andreas93 [3]

Answer:

ANSWER IS 1,050

Step-by-step explanation:

You take 1,500 and multiply it by 70%

Hope this helps

6 0
2 years ago
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