Question

Complete each part of the assessment below.
Genuine Bank’s website requires that your pin number only be two numerical digits long. So, the first number to choose is from set A below and the second number to choose is from set B below. Find the cross product A × B to determine the number of possible combinations.
A = {0, 2, 4, 6, 8}                     
B = {1, 3, 5, 7, 9}
Valliant Bank’s website requires that your pin number be two digits long, the first

Answer 1

If I have two things, and I want to know how many possible ways there are to do both of them, I just multiply the number of ways to do either of them.
The classic example of this is if I have 3 pants and 4 shirts, I can make 3*4 = 12 outfits.

Answer 2

So I multiply everything? And in combination?

Answer 3

How many ways to pick the first number? How many ways to pick the second?
How many ways to pick both?

Answer 4

Thank you! : D

Answer 5

You figured it out? Makes sense to you now?

Answer 6

> Find the cross product A × B to determine the number of possible combinations.

We need the cross product of the sets as stated in the instructions

Answer 7

I mean... we could solve it by finding the cross product, but to say that it's necessary is false.

Answer 8

@SmoothMath From the problem instructions: "Find the cross product A × B to determine the number of possible combinations."

The Fundamental Principle of Counting may dictate 5*5 = 25 but the instructions state "find the cross product."

Answer 9

Meh. Not worth arguing.