Greg wants to find the amount of concrete needed to cast a pillar he has designed. the pillar will have a base area of square yard and a height of yard. how much concrete does he need to cast the pillar?

1. during first 10 seconds 2. between 10 seconds and 35 seconds 3. during 35 seconds to 40 seconds

If square root x = -7, then x= -49 true or false

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters