A hemispherical bowl of radius 8 inches is filled to a depth of h inches, where 0less than or equalshless than or equals8. Find the volume of water in the bowl as a function of h. (Check the special cases hequals0 and hequals8.)

Which pair of lines is parallel? a. y=4x+1 and y+4=5 b. y=-2+x and 2y-2x=-2 c. y=1/4x + 2 and y-2=1/2x d. y=1/5x+1 and 5y+x= 10

If the angle bisectors of a pair of opposite angles of a quadrilateral are the opposite sides of a parallelogram formed by the two angle bisectors and two sides of the quadrilateral, is the quadrilateral always a parallelogram? explain your answer.

Is a triangle with sides of length 6ft, 21 ft, 23 ft. a right triangle?