The large sphere has a diameter of 20 feet. Which expression represents the volume, in cubic units, of

the shaded part of the sphere?

4f

047(109) + 37(4)

04.1(109) – 4.1(49)

071209 + 2(43)

of(209) - 4.1(49)

answer: the answer is e

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.