3. The volume of a right circular cone is 11.76 cm?. Its height is 4.5 cm. (a) Find the base radius of the cone.
(2 marks)
(b) Hence, find the curved surface area of the cone.
(3 marks)​

Option 1: $30 an hour plus a nonrefundable deposit of $50 option 2: $20 an hour plus a nonrefundable deposit of $75 kyle is renting a jetski for the day. if he can rent the jetski in one hour increments, what is the minimum number of hours must he rent the jetski for option 2 to be a better deal then option 1?

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Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i