Order 0.4, 0.19, 0.42 in descending order

0.42 > 0.4 > 0.19

Hope it helps..Thank you

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!

i think is g(1)=-1.

hope that i can