Let and . Find .

Perform the matrix subtraction:

John rolls two regular 6-sided dice, what is the probability that he gets a total less than 9.

Convert the binary number to the decimal number system.

Convert the octal number to the decimal number system.

Integers and natural numbers are also irrational numbers. True or false?

Compute the determinant of the following matrix:

Which

is the correct Boolean expression for English statement "

where

: The firewall is disabled.

: The network is vulnerable to attacks.

How many 2-digit numbers can we create from the digits , where each digit can be used only once?

Which is the correct truth table for: .