<h2><u><em>
Answer: 1017.8760</em></u></h2><h2><u><em>
Step-by-step explanation:</em></u></h2><h2><u><em>
area A=πr2
</em></u></h2><h2><u><em>
A=π×182
</em></u></h2><h2><u><em>
A=324π
</em></u></h2><h2><u><em>
A=1017.87602
</em></u></h2><h2><u><em>
</em></u></h2><h2><u><em>
also, circumferenceC=2πr</em></u></h2><h2><u><em>
and, diameterd=2r</em></u></h2>
<u><em></em></u>
Answer:
3,-3
Step-by-step explanation:
g(3)= (3)³+6(3)²-9(3)-54
= 27+54-27-54
=81-81
= 0
g(-3) = (-3)³+6(-3)²-9(-3)-54
= -27+54+27-54
= 27-27
= 0
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Answer:
22.47
22.5 (simplified)
Step-by-step explanation:
22.47 = √(8^2 + 21^2)
