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maksim [4K]
4 years ago
8

Find the surface area of the regular dodecahedron. PLEASE HELP!!

Mathematics
1 answer:
kakasveta [241]4 years ago
5 0
12*123.9=1486.8
plz rate brainlyist

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1 \frac{4}{5}

change 1 \frac{1}{5} to an improper fraction = \frac{6}{5}

to divide change  ÷ to × and turn the divisor upside down

\frac{6}{5} ÷ \frac{2}{3} = \frac{6}{5} × \frac{3}{2}

=  \frac{18}{10} = \frac{9}{5} = 1 \frac{4}{5}


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This is a fundamental counting principle problem and can be solved by multiplying the number of choices you have for each digit of the license plate.

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Now the next 5 digits will all be letters all being different.. recall there are 26 letters in the alphabet.. for our second digit we have 26 choices, for our third digit we have 25 choices(because we already used one of the 26 letters and we can't repeat), for our fourth digit we have 24 choices.... and well I'm sure you are catching on by now...

Here is what the whole calculation looks like:

10(26)(25)(24)(23)(22) = 78,936,000

Step-by-step explanation:

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