Dan is 60 years old. He is married and has children. He is starting to experience problems with his eyes and having other age-related health issues. He wants a health insurance policy.
Which policy is best for him?
Policy A Policy B Policy C Policy D
Medical premium per month
$500 $510 $580 $530
Dental premium per month $25 Not covered $28
$20
Vision premium per month Not covered $20 Not covered $30
Co-payment
None
$50
$20 None
Deductible
$2000 $2000 $1800 $1900

policy a? policy b? policy c? or policy d?

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)