The large sphere has a diameter of 20 feet. which expression represents the volume, in cubic units, of the shaded part of the sphere? π(103) + π(43) π(103) – π(43) π(203) + π(43) π(203) – π(43)

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: