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Colt1911 [192]
3 years ago
11

Plz help me with this???

Mathematics
2 answers:
Monica [59]3 years ago
7 0

Answer:

\frac{9}{28}

Step-by-step explanation:

Shaded area = 1 - \frac{1}{4} - \frac{3}{7} (Make them have the same denominator, 28)

                      = \frac{28}{28} - \frac{7}{28} - \frac{12}{28} (Simplify)

                      = \frac{28}{28} - \frac{19}{28} (Evaluate)

                      = \frac{9}{28}

ludmilkaskok [199]3 years ago
7 0

Answer:

9/28 is the answer

Step-by-step explanation:

it maybe really late.

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Which expression is equivalent to 1/3 divided by 1/6
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Answer:

The answer is A

Step-by-step explanation:

cross mutliply

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result: 2

I hope this helps

5 0
3 years ago
20) In a recent poll of 1200 randomly selected adult office workers, 32% said they had worn a Halloween costume to the office at
Allisa [31]

Answer: Option 'c' is correct.

Step-by-step explanation:

Since we have given that

n = 1200

x = 32% of 1200

So, \hat{p}=32\5=0.32

We need to find 95% confidence interval.

so, z = 1.96

So, margin of error would be

z\times \sqrt{\dfrac{p(1-p)}{n}}\\\\=1.96\times \sqrt{\dfrac{0.32\times 0.68}{1200}}\\\\=1.96\times 0.0135=

So, Interval would be

\hat{p}\pm \text{margin of error}}\\\\=0.32\pm 0.0263\\\\=(0.32-0.0263,0.32+0.0263)\\\\=(0.2937,0.3463)\\\\=(0.294,0.346)\\\\=(29.4\%,34.6\%)

Hence, Option 'c' is correct.

6 0
3 years ago
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Answer:

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Step-by-step explanation:

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