Beryl calculated the total text messages sent by sophomores, juniors and seniors for a week using the matrix equation: z = x + y what are the values for the elements of this matrix? z11 = z12 = z13 = pleas i'm about to graduate

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!