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Romashka-Z-Leto [24]
3 years ago
10

In a survey of 368 people, 81 drink milk straight from the milk carton. For the sample, find the sample proportion, the margin o

f error, and the interval likely to contain the true population proportion.
A. 22%; b. 5%; c. 17%
B. 28%; b. 5%; c. 23%
C. 22%; b. 11%c. 11%
D. 28%; b. 11%; c. 17%
Mathematics
1 answer:
barxatty [35]3 years ago
5 0
The best answer is C.
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Which expression is modeled by this arrangement of tiles?
dimulka [17.4K]

The answer is 40/10 because the total number of square units is 40 option second 40/10 is correct.

<h3>What is a fraction?</h3>

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

The question is incomplete.

The complete question is:

Which expression is modeled by this arrangement of tiles? 40 positive tiles are broken up into 10 groups of 4 positive tiles.

  • 40/(-10)
  • 40/10
  • 40/40
  • 40/(-40)

Please refer to the attached picture.

We have a rectangular shape as shown in the picture.

Total number of square units = 40

Each row has 10 units cube.

Each cube = 40/10

Thus, the answer is 40/10 because the total number of square units is 40 option second 40/10 is correct.

Learn more about the fraction here:

brainly.com/question/1301963

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8 0
2 years ago
R 3. The mean of 4 numbers is 8. Three of the numbers add up to 22. What is the last number?​
statuscvo [17]
<h2><em><u>Solution</u></em> : </h2>

let the last number be x

we know,

\boxed{mean =  \frac{sum \:  \: of \:  \: all \:  \: observations}{number \:  \: of \:  \: observations} }

So,

\hookrightarrow \: 8 =  \dfrac{22 + x}{4}

\hookrightarrow \: 8 \times 4 = 22 + x

\hookrightarrow \: 32 = 22 + x

\hookrightarrow \: x = 32 - 22

\hookrightarrow \: x = 10

therefore, the last number is 10.

7 0
2 years ago
1.3 times 10 to the negative second times 0.05
Ivan

Answer:

0.00065

Step-by-step explanation:

1.3 × 0.01 × 0.05

0.013 × 0.05

0.00065

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
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