1)find the center & radius for the following
1. 2x^2+2y^2=72
2. (x-3)^2+(y-1)^2=4
3. (x-5)^2+(y+2)^2=49
4. (y-4)^2+(x-10)^2=64
5.(x^2-6x+9)+(y^2+8y+16)=1
6. x^2+12x+y^2-8y=-27
7. write an equation for the circle with center at (3,-4) and with (2,-1) a point on the circle.

Chosen according to the volume of oil it can haul, as shown in at a railway yard, locomotives are used to haul containers carrying the table. locomotive capacity a450 0 -750 cubic feet cg35 750-1,500 cubic feet br73 1,500-2,500 cubic feet yh61 2,500-3,500 cubic feet & the four cylindrical containers listed in the table need to be hauled. cylinder length (ft.) diameter (ft.) fill level a 40 , 12 half b 24 8 full c 16 16 full 6 12 full d match each container to the locomotive needed to haulit a450 cylinder a yh61 cylinder d