If the total surface area of cone is 704cm^2 and radius of its base is 7cm ,find the volume of cone ? plz plz plz hel!

The parabola opens: y=√x-4 (principal square root) up down right left

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%

Solve for x where 0 equation: cot^2x+2cotx+1=0