A) 28 LaTeX: \div ÷ (-4) B) 13 LaTeX: \cdot ⋅ LaTeX: \frac{1}{4} 1 4

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!

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation:

idk

step-by-step explanation: i just don't