3 years ago

By which angle measures can the regular pentagon be rotated so it maps onto itself?

Mathematics

1 answer:

vazorg [7]3 years ago

5 0

Answer:

hi there the answer is 72

Step-by-step explanation:

sorry but my work is on a piece of paper in front of me

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The half-life of carbon-14 is 5,730 years. Assuming you start with 100% of carbon-14, what is the expression for the percent, P(

vodomira [7]

The general expression would be:
$P(t) = (\frac{1}{2})^{ \frac{t}{5730} }$
In an organism that is 20,000 years old (t = 20000), we would expect:
$P(t) = (\frac{1}{2} )^( \frac{20000}{5730} ) = 0.08898$
This menas there would be around 8.898% of carbon-14 remaining in the organism.

8 0

3 years ago

I need help on this question.

cluponka [151]

Every one of the answers is correct except 3.4

5 0

3 years ago

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5. Combien de paires de nombres naturels peut-on former dont : a) la somme est 23? b) la différence est 100?

Lilit [14]

Answer: a) 24 b) infini

Step-by-step explanation: a) parce que tu peut faire que 24 somme pour faire 23. B) infini car tout plus haut 100 fonctione