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jok3333 [9.3K]
3 years ago
5

Es

Mathematics
2 answers:
polet [3.4K]3 years ago
8 0
The fence encloses at 22 ft2
suter [353]3 years ago
4 0

Answer : The area the fence encloses is, 120 ft²

Step-by-step explanation :

As we are given that Penelope built a fence that is 10 feet by 12 feet which will resemble the shape of rectangle.

As we know that:

Area of rectangle = Length × Breadth

Given:

Length = 12 feet

Breadth = 10 feet

Now put all the values in the above formula, we get the area of fence encloses.

Area of rectangle = Length × Breadth

Area of rectangle = 12 feet × 10 feet

Area of rectangle = 120 feet² = 120 ft²

Therefore, the area the fence encloses is, 120 ft²

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Hannah claims that people who live in southern states spend 9 hours more per week outside than do people in northern states. She
vova2212 [387]

Answer:

b. Hannah is likely to be incorrect because 9 is not contained in the interval.

Step-by-step explanation:

Hello!

Hannah estimated per CI the difference between the average time that people spend outside in southern states and the average time people spend outside in northern states.

The CI is a method of estimation of population parameters that propose a range of possible values for them. The confidence level you use to construct the interval can be interpreted as, if you were to calculate 100 confidence interval, you'd expect that 99 of them will contain the true value of the parameter of interest.

In this example, the 99%CI resulted [0.4;8.0]hs

Meaning that with a 99% confidence level you'd expect the value of the difference between the average time people from southern states spend outside than the average time people from northern states spend outside is included in the interval [0.4;8.0]hs.

Now, she claims that people living in southern states spend 9 more hours outside than people living in northern states, symbolized μ₁ - μ₂ > 9

Keep in mind that if you were to test her claim, the resulting hypothesis test would be one-tailed

H₀: μ₁ - μ₂ ≤ 9

H₁: μ₁ - μ₂ > 9

And that the calculated Ci is tow-tailed, so it is not valid to use it to decide over the hypotheses pair. This said, considering that the calculated interval doesn't contain 9, it is most likely that Hannah's claim is incorrect.

I hope this helps!

6 0
2 years ago
HELP I WILL GIVE 30 POINTS AND MARK BRAINLIEST
Alekssandra [29.7K]

Answer:

yo can i pls have points im doing world record attempt for points soon

Step-by-step explanation:

4 0
3 years ago
Every week, a car dealer ship sells at least 5 minivans. Write an inequality that represents this situation. Let c represent the
kvv77 [185]

Answer:

we conclude that an inequality 'c ≥ 5' denotes this situation.

Step-by-step explanation:

Given

  • A car dealer ship sells at least 5 minivans

When we talk about 'at least', it means we are talking about '≥' in terms of representing the 'at least' in inequality symbol.

For instance,

'm≥n' means 'm' is greater than or equal to 'n'.

It means 'm' is at least equal to 'n'.

Coming back to the question,

  • Let 'c' represent the number of minivans sold each week.

As the car dealer ship sells at least 5 minivans. so the

inequality will be: c ≥ 5

Thus, we conclude that an inequality 'c ≥ 5' denotes this situation.

8 0
3 years ago
How do you find the bearing and speed of a ship?
Usimov [2.4K]
Finding the Bearing<span> of a </span>Ship<span> 
Example : A </span>ship<span> leaves the port of Miami with a </span>bearing<span> of S80◦E and a </span>speed<span> of. 15 knots. After 1 hour, the </span>ship<span> turns 90◦ toward the south.</span>
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3 years ago
How to do complete the number line using the following fractions
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You line them up from smallest to greatest
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3 years ago
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