What is the surface area of this cylinder?
a) 6.4 m2.
b) 25.1 m2.
c) 37.7 m2.
d) 62.8 m2.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

the answer is c hope this

the formula of a midpoint between a abd b:

3.07*10^-4

move the decimal 4 places to the left

.000307