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aev [14]
3 years ago
6

? is in the picture plsss answer

Mathematics
1 answer:
balandron [24]3 years ago
3 0

Answer:

You have a triangle and a Square!

Step-by-step explanation:

Blue = Square

Red = triangle

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Given: △ABC; AB=BC, m∠BDA = 60°, BD=4 cm, BD ⊥ BA . Find: DC, AC.
vekshin1

Answer:

DC = 10.93 cm ,  AC = 9.8 cm

Step-by-step explanation:

From trigonometry;

⇒ Tan 60 = AB/BD

⇒AB = BD Tan 60 ( where BD = 4 cm )

⇒ AB = 6.93 cm

Also, AB=BC , therefore;

⇒ BC = 6.93 cm

⇒ Cos 60 = BD/AD

⇒ AD = BD/ Cos 60 = 4/Cos 60

⇒ AD = 8 cm

From Pythagoras theorem;

⇒ AC^{2} = AB^{2} + BC^{2} = (6.93)^{2} + (6.93)^{2}

⇒ AC = \sqrt{96.05} = 9.80 cm

⇒ DC = BD + BC = 4 + 6.93

⇒ DC = 10.93 cm

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3 years ago
Select all of the numbers that are prime<br> 17<br> 18<br> 19<br> 20<br> 21<br> 22<br> 23
Sveta_85 [38]
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3 years ago
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Step-by-step explanation:

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If a publisher of nontechnical books takes great pains to ensure that its books are free of typos, so that the probability of an
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(a) 0.2707

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Step-by-step explanation:

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To solve this problem, you should find the rate --->  cost per yogurt (cost/yogurt)

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It costs $0.65 per yogurt, so you can multiply 9 by $0.65 to find the total cost of 9 yogurt.

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