Ten of the 100 digital video recorders (DVRs) in an inventory are known to be defective. What is the probability you randomly select a DVR that is not defective? The probability is
(Type an integer or a decimal. Do not round.)

lol we need to see what the question is asking about

step-by-step explanation:

my answer got deleted but it's a

step-by-step explanation:

kekdkdkccc

so

step-by-step explanation:

kekdkckcldlx

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a