List the angles of ∆ abc from smallest to largest. Ab = 20, bc = 12, ca = 10.

Answers

Answer 1

The angle of the triangle ABC from smallest to largest are approximately 22°, 27° and 131°.

The sides of the triangle are as follows;

AB = 20

BC = 12

AC = 10

Let's find ∠A using cosine rule,

a² = b² + c² - 2bc cos A

cos A = b² + c² - a² / 2bc

Therefore,

cos A = 10² + 20² - 12²  / 2 × 10 × 20

cos A = 100 + 400 - 144 / 400

cos A = 356 / 400

cos A = 0.89

A = cos⁻¹ 0.89

A = 27.1267531173

∠A ≈ 27°

Using sine rule let's find ∠B

12 / sin 27 = 10 / sin B

cross multiply

12 sin B = 10 sin 27

sin B = 10 sin 27 / 12

sin B = 10 × 0.45399049974  / 12

sin B = 4.5399049974  / 12

B = sin⁻¹ 0.37832541645

B = 22.2299936087

∠B = 22°

Using sum of triangle theorem let's find ∠C

∠C = 180 - 27 - 22

∠C = 131°

The angles from smallest to largest are approximately 22°, 27° and 131°.

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If you are the driver or owner of a vehicle which is in a crash that is your fault and you are not insured in compliance with the financial responsibility law? You may be required to pay for the damages before your driving privileges is reinstated.

Lydia graphed δlmn at the coordinates l (0, 0), m (2, 2), and n (2, −1). She thinks δlmn is a right triangle. Is lydia's assertion correct?.

Answers

No product results in -1, hence δlmn is NOT a right triangle showing that  lydia's assertion is incorrect

Perpendicular lines

In order to determine whether triangle lmn  is right-angled, we need to determine the slope of lm, ln, and mn first as shown:

For the slope of lm:

[tex]m_{lm} = \frac{2-0}{2-0}\\ m_{lm} =2/2\\m_{lm} =1[/tex]

For the slope of ln:

[tex]m_{ln} = \frac{-1-0}{2-0}\\m_{ln} =-1/2\\[/tex]

For the slope of mn:

[tex]m_{mn} = \frac{-1-2}{2-2}\\m_{ln} =-3/0 = \infty\\[/tex]

If any of the two lines is perpendicular, hence the triangle lmn is right-angled.

To check, we will take the product of the slopes and see if it is equivalent to -1.

Product of slope lm and ln

[tex]m_{lm}\times m_{ln} = 1 \times -1/2\\m_{lm}\times m_{ln} = -1/2[/tex]

Since no product results in -1, hence δlmn is NOT a right triangle showing that  Lydia's assertion is incorrect

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Answer:

Question: Lydia graphed ΔLMN at the coordinates L (0, 0), M (2, 2), and N (2, −1). She thinks ΔLMN is a right triangle. Is Lydia's assertion correct?

Explanation:

I took the test and got the answer that I chose wrong but then it showed me what was actually the right answer.

Correct Choice: No; the slopes of segment LM and segment LN are not opposite reciprocals.

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Answer: 0?

Explanation:

A molecule that has oppositely charged ends is called ____.

Answers

Answer:

Polar molecule

Explanation:

Hope this helps!:)

Answer:

A molecule that has oppositely charged ends is called polar molecules.

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Which of these does henry david thoreau criticize in resistance to civil government.

Answers

Answer:

In “Civil Disobedience” Thoreau not only calls for resistance to immoral and unjust government actions, he also criticizes the foundation of representatives democracy — majority rule, voting, and representation

Explanation:

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Answer:

B: The Mexican-American War

Explanation:

what is the kinetic energy of a 4 kg cart pushed at a rate of 0.5 m/s?

Answers

Answer:

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Explanation:

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There are different kinds of lines in the Poem. In lines 1-2, the speaker describes "Like" as a "semi-demi goddess" primarily to emphasize that almost religious devotion people have to collecting "likes" on social media.

In the line, the Reasoning behind the statement is that the speaker shows forth "Like" as a "semi-demi goddess". He intended to talk about or show how focused people are on more into having a lot of "likes" on social media.

When you look into the poem all through, you will see that there are a lot of references to how social media boast the morale of people to "like" different kinds of products and causes.

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Which statement accurately describes the relationship between diet, exercise, and weight?.

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Answer:

Explanation:

Successful weight loss requires a caloric deficit produced by a combination of diet and exercise.

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Answer:

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Explanation:

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The excerpt given above from a poem can be said to be about a thought-provoking walk at night.

The speaker:

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Answer:

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Answers

The conclusion which can be drawn with respect to the nature of an exchange-rate table in December 2013 is that: B. It would look different because exchange rate tables change constantly.

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Answer:

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Explanation:

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Una alimentación saludable comprende la ingesta de macronutrientes, es decir, proteínas, lípidos, y carbohidratos, como así también micronutrientes tales como vitaminas y minerales.

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Answers

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Answers

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There are different ways to show emotions in a dialogue. This can be seen a lot through  Facial Expressions such as when one's eyes go wide or a tugging of the ear.

Facial expressions are known to be the first reaction of the human body to another individuals dialogue. They often show how a  certain characters feel about what they have heard or seen.

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Answers

Answer:

2. mention any five virtues that can be regarded as universal virtues. 3. manners are social behaviors that help us build and strengthen relationship

Explanation:

2. Mention any five virtues that can be regarded as universal virtues. 3. Manners are social behaviors that help us build and strengthen relationship

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Answer:

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Explanation:

Choose the best spanish equivalent to the phrase. We should comb our hair.

Answers

The sentence We should comb our hair is equivalent to the sentence Nosotros debemos peinar nuestro cabello.

In this question we should translate a sentence in English into Spanish, in this case a literal manner based on Spanish grammar and conserving the grammatical construction of the English original is used for a better understanding of the reader.

ProcedureGrammatical structure

We know that the grammatical structure is described below:

Pronoun + auxiliary verb + verb + complement

Translation

Based on these rules, we have the following translation:

Nosotros debemos peinar nuestro cabello.

Conclusion

In a nutshell, the sentence We should comb our hair is equivalent to the sentence Nosotros debemos peinar nuestro cabello.

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D on Edge

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Answer:

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Answer :Bacteria grow most rapidly in the range of temperatures between 40 °F and 140 °F, doubling in number in as little as 20 minutes. This range of temperatures is often called the "Danger Zone." To learn more about the "Danger Zone" visit the Food Safety and Inspection Service fact sheet titled Danger Zone.

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Answers

Answer:

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Explanation:

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Answer:

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Explanation:

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