True or false: 2. e^-^x=\sum_{n=0}^{\infty }\frac{-1}{n! }x^n for any real number x.

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

the answer is c. 23/3

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute:

i think the answer is c sorry if it's wrong