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
Answer: Your answer is correct.
Explanation:
Use the marker gradations to identify the projected geometric shapes from the top, front and right side view as shown in the figure below.
All the gradation markings agree with your choice.
.
Answer:
12
Step-by-step explanation:
Ok, first write it as an equation, 3x-12=24. Next, you need to simplify, add 12 to each side, getting 3x=36. Lastly, subtract 3 from each side which gives you x=12
1

is the answer you're looking for.
Answer:
good
Step-by-step explanation:
i just ate