Three times Francis' age plus five times Earl's age is 230. Earl is also four times Francis age. How old is Earl?

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Acircle has a circumference of 28.36 units what is the diameter of the circle

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position