The height of a cone is twice the radius of its base.
What expression represents the volume of the cone, in
cubic units?
2/3pix3
4/3pix2
2pix3
4pix3

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

if you was gonna solve for a, a is a   < -12

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb