3 years ago

!!!10 POINTS!!! How many sides does a regular decagon have? А. 11 В. 8 C. 9 D.10

Mathematics

2 answers:

arsen [322]3 years ago

8 0

A decagon has 10 sides
so the answer is D.

77julia77 [94]3 years ago

3 0

The answer is D.10
I know this answer is right because a decagon has 10 sides.

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Let t=number of years since 1991.
Then
P(t)=147 e^(kt) ... in millions
P(0)=147 e^(0)=147
P(7)=147 e^(7k)=153
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take ln both sides
ln(e^(7k))=ln(153/147)
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