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alexdok [17]
3 years ago
6

A map has a scale of 6 in. = 18 mi. If you measured the distance between two cities to be 26 in. on the map, how many miles woul

d it actually be?
Mathematics
1 answer:
Travka [436]3 years ago
8 0

Answer:

78 mi

Step-by-step explanation:

18/6 = 3

1 in= 3 mi

26×3= 78 mi

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The deepest plant root is 393.7 feet deep. What is the total depth of the root rounded to the nearest whole number?
andreev551 [17]

Answer:

C. 394 feet

Step-by-step explanation:

.7 is closer to the next whole number.

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2 years ago
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What is the slope of the linear represents by the equation y = 4/5 x -3
gogolik [260]

Answer:

4/5

Step-by-step explanation:

y = mx + b

4/5 = m = slope

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3 years ago
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What is the relationship between radius and diameter of a circle
Yanka [14]
The radius of a circle is half way in the center.

The diameter of a circle is all the way in the center. 


( there is a picture to give you a visual understanding )   :)


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4 0
4 years ago
Mislabeled seafood In 2013 the environmental group Oceana (usa.oceana.org) analyzed 1215 samples of seafood purchased across the
Step2247 [10]

Using the z-distribution, it is found that the 95% confidence interval for the proportion of all seafood sold in the United States that is mislabeled or misidentified is (0.3036, 0.3564).

<h3>z-distribution interval:</h3>

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of \alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

  • In which z is the z-score that has a p-value of \frac{1+\alpha}{2}.

For this problem:

  • 1215 samples, hence n = 1215.
  • 33% was mislabeled or misidentified, hence p = 0.33.
  • 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so z = 1.96.

<h3>The lower limit of this interval is:</h3>

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.33 - 1.96\sqrt{\frac{0.33(0.67)}{1215}} = 0.3036

<h3>The upper limit of this interval is:</h3>

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.33 + 1.96\sqrt{\frac{0.33(0.67)}{1215}} = 0.3564

The 95% confidence interval for the proportion of all seafood sold in the United States that is mislabeled or misidentified is (0.3036, 0.3564).

You can learn more about the use of the z-distribution to build a confidence interval at brainly.com/question/25730047

4 0
2 years ago
Simplify the expression.<br><br> Please add an explanation if you understand how to do this.
pickupchik [31]

Answer:

2x^31

Step-by-step explanation:

~Simplify the expression

2x^29/x^-2

~Apply quotient rule [ a^b/a^c = a^b-c ]

2x^31

Best of Luck~

8 0
3 years ago
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