Answer:
19.73
Step-by-step explanation:
look up circumference formula and click solve
Well theoretically speaking you could but that would take a long time and 15 and 30 have a common factor of 5 and 15. So I think for this one you can't since there are two common factors.
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Answer:
5+5root3
Step-by-step explanation:
I honestly don’t know what the answer is but I’m sorry
(-5a)(-3a ²)
=
15a³
-5 x -3 = 15 ( negative times negative = positive)
a x a² = a³ ( when multiplying exponents, you add the exponents together )