Since a hemisphere is half of the size of a sphere, then the surface area formula for a hemisphere is half of that of a sphere
Sphere: 4(pie)(radius squared)
Hemisphere: 4(pie)(radius squares) / 2
A. True
B. False

Which expression gives you the distance between the points (5,1)and(9,-6)

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?