Hello from MrBillDoesMath!
Answer:
The first choice, Pi + (-Pi) = 0
Discussion:
Pi is an irrational number. Saying the irrational numbers <u>are</u> closed under addition means if we add two irrational numbers we will get another irrational number. In our case, Pi + (-Pi) = 0, which is correct, BUT 0 is a <u>rational </u>number. This shows the set of irrational numbers is NOT closed under addition.
Thank you,
MrB
Charlie must have had 11 rice cakes
You multiply 120 times 3 to get 360
then 800- 360 = 440
440 divided my 40 = 11
Answer:
Please English translate this for my help
Step-by-step explanation:
Let me know if you can see this photo
Answer:
The answer is perpendicular to the base.
Step-by-step explanation:
