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nirvana33 [79]
3 years ago
9

If a = 12 and B = 43 degrees, find c.

Mathematics
2 answers:
ludmilkaskok [199]3 years ago
8 0

Answer:

74

Step-by-step explanation:

You subtract 43 from 12 you get 31 then you add 43 and 31 you get 74 bye

lukranit [14]3 years ago
7 0

Answer:

c=35 degrees

Step-by-step explanation:

Its a right angle triangle which is equal to 90 degrees

so 43 +12=55 degrees.

90-55=35 degrees

c=35 degrees

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Step-by-step explanation:

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The metal cost for the base is =$(2.00× \pi r^2)

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\therefore C=2\pi r^2+2.5 \pi r \times \frac{25}{\pi r^2}

\Rightarrow C=2\pi r^2+ \frac{62.5}{ r}

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C'=4\pi r- \frac{62.5}{ r^2}

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4\pi r- \frac{62.5}{ r^2}=0

\Rightarrow 4\pi r=\frac{62.5}{ r^2}

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\left C''\right|_{x=1.71}=4\pi +\frac{125}{1.71^3}>0

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