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sineoko [7]
3 years ago
10

#1 Using the right triangle below, find the cosine of angle A.

Mathematics
1 answer:
motikmotik3 years ago
7 0

Answer: 0.8

Step-by-step explanation:

Using the Cosine formula :

Cos A = \frac{b^{2}+c^{2}-a^{2}}{2bc}

a = 6

b = 8

c = 10

substituting into the formula , we have

Cos A = \frac{8^{2}+10^{2}-6^{2}}{2(8)(10)}

Cos A = \frac{64+100-36}{160}

Cos A = \frac{164-36}{160}

Cos A = \frac{128}{160}

Therefore :

Cosine of angle A = 0.8

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Zepler [3.9K]

Answer:

The distance between house to work is 13 miles .

Step-by-step explanation:

Given as :

The distance that man travel to north = OA = 5 miles

Now, From north ,man turn right and travel to east

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Let The distance between house to work = x miles

So, x miles is the displacement from north to east direction

i.e x = \sqrt{OA^{2} + AB^{2}  }

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Hence, The distance between house to work is 13 miles . Answer

6 0
3 years ago
How to bring the polynomial to the standard form p(x) x^2-2x+4) (x^2+2x+4) ​
saveliy_v [14]
<h3>Solution:</h3>

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<h3>Answer:</h3>

\large\boxed{\sf{\red{{x}^{4} p(x) +  {2x}^{3} p(x) +  {4x}^{2} p(x) +  {2x}^{3}  +  {8x}^{2}  + 16x + 16}}}

\color{red}{==========================}

✍︎ꕥᴍᴀᴛʜᴅᴇᴍᴏɴǫᴜᴇᴇɴꕥ

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✍︎ꕥᴋɪᴍ ᴀʀᴀꕥ

5 0
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Answer:

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I’ll mark you Brainly-ist if you’re correct.
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Answer:

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Step-by-step explanation:

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Write the following comparison as a ratio reduced to lowest terms.
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