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kvv77 [185]
2 years ago
5

John drew a figure with two pairs of opposite sides that are parallel. Without more information, which two figures can we be sur

e he has drawn?
Mathematics
2 answers:
Oksi-84 [34.3K]2 years ago
4 0

Answer:

square

Step-by-step explanation:

jarptica [38.1K]2 years ago
3 0

Answer:

quadrilateral, square

Step-by-step explanation:

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The question is in the image.
zepelin [54]

Answer:

Both are linear functions.

Step-by-step explanation:

There are no same x values in the table and the graph passes the vertical line test.

6 0
2 years ago
What will happen to the ratios as you increase the number of sides of the regular polygon?
earnstyle [38]

Answer: increase

Step-by-step explanation:

Number of sides of the polygon, The number of sides of a regular polygon and the measure of the exterior angle are inversely proportional. <em><u>As one quantity increases, the other decreases and vice versa.</u></em>

4 0
3 years ago
Vitamin D, whether ingested as a dietary supplement or produced naturally when sunlight falls on the skin, is essential for stro
tigry1 [53]

Answer:

a) The 98% confidence interval would be given (0.182;0.218).

b) We are 98% confident that the true proportion of of England people who are deficient in Vitamin D is between 0.182 and 0.218.

c) If repeated samples were taken and the 98% confidence interval computed for each sample, 98% of the intervals would contain the population proportion.

d) Yes since the confidence interval not contains the value 0.25, we can refute the claim at 2% of significance.

Step-by-step explanation:

Data given and notation  

n=2700 represent the random sample taken    

X represent the people in England who are deficient in Vitamin D

\hat p=0.2 estimated proportion of England people who are deficient in Vitamin D

\alpha=0.02 represent the significance level

Confidence =0.98 or 98%

z would represent the statistic (variable of interest)    

p= population proportion of England people who are deficient in Vitamin D

Part a

The confidence interval would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 98% confidence interval the value of \alpha=1-0.98=0.02 and \alpha/2=0.01, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=2.33

And replacing into the confidence interval formula we got:

0.20 - 2.33 \sqrt{\frac{0.2(1-0.2)}{2700}}=0.182

0.20 + 2.33 \sqrt{\frac{0.2(1-0.2)}{2700}}=0.218

And the 98% confidence interval would be given (0.182;0.218).

Part b

We are 98% confident that the true proportion of of England people who are deficient in Vitamin D is between 0.182 and 0.218.

Part c

If repeated samples were taken and the 98% confidence interval computed for each sample, 98% of the intervals would contain the population proportion.

Part d

Yes since the confidence interval not contains the value 0.25, we can refute the claim at 2% of significance.

3 0
2 years ago
The cost of renting a fishing boat is $25 per hour for the first 7 hours, $10 per hour for the next 10 hours, and $5 per hour fo
yKpoI14uk [10]

Answer: $340

Step-by-step explanation:

To identify the cost of renting the boat for 30 hours, breakdown the 30hours into specific renting hours

i.e 30 hours = (7 hours + 10 hours + 13 hours)

Then calculate each of the renting cost based on the hour breakdown given above

- Since the Cost of renting a fishing boat is $25 per hour for the first 7 hours, then (25 x 7 hours = $175)

- For the $10 per hour for the next 10 hours, then (10 x 10 hours = $100)

- and for $5 per hour for any additional hours. (5 x 13 additional hours = $65)

Now, sum up all of the cost of the hourly breakdown

i.e 30 hours = (7 hours + 10 hours + 13 hours)

= $175 + $100 + $65

= $340

Thus, the cost of renting the boat for 30 hours is $340

5 0
3 years ago
Read 2 more answers
Find the missing Side of the triangle
sammy [17]

Answer:

2√15

Step-by-step explanation:

Use the Pythagorean theorem.

2² + x² = 8²

x² + 4 = 64

x² = 60

x² = 4 * 15

x = 2√15

3 0
2 years ago
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