1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kykrilka [37]
3 years ago
12

Which answer is correct

Mathematics
1 answer:
andre [41]3 years ago
7 0

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

You might be interested in
A 7-by-7 foot rug is shown.
avanturin [10]

Answer:

A Between 0-1/2

Step-by-step explanation:

Because you don't know if the rug is solid white or a checkard rug. But I could be wrong with insufficient evidence of the rug

6 0
2 years ago
Amber has 2 red crayons,5 blue crayons,and 4 yellow crayons.how many crayons does she have
Gelneren [198K]
All you have to do is addition. 2+5+4=11. Or you can break it down and go 2+5=7 and then 7+4=11. Or 5+4=9 then 9+2=11. Or 4+2=6 then 6+5=11.
6 0
2 years ago
Read 2 more answers
What is the area surface of the pyramid please do not do any files or links just say the answer and do not guess
poizon [28]

Answer:

448

Step-by-step explanation:

7 0
2 years ago
A catalog has a scale drawing of a floating dock. The dock is a regular octagon attached to a rectangular walkway. The scale dra
gtnhenbr [62]

Answer: 5 feet.

Step-by-step explanation:

Remember that the lenghts of the sides of a regular octagon are equal.

You can observe in the figure that the lenght of a side of the regular octagon is 1.25 inches.

Let be "s" the actual length of a side of the regular octagon.

Knowing that the scale drawing has a scale of 1 inch 4 feet, you can find the actual lenght of a side of this regular octagon with:

s=\frac{(1.25in)(4ft)}{(1in)}\\\\s=5ft

Therefore, the actual length of a side of the octagon is 5 feet.

6 0
2 years ago
Merry christmas! my teachers gave me work. ill be happy if u help
Sauron [17]
Heyy merry christmas !
area of a triangle = base * height : 2
4 * 5 = 20 : 2 = 10
10 * 12triangles = 120cm^3
4 0
2 years ago
Other questions:
  • Need help with this please!!!
    7·1 answer
  • An international phone call costs $6.53 for 48 minutes. How many cents per minute
    5·1 answer
  • The width of a triangle is six more than twice the height. The area of the triangle is 88in2. Find the height and base of the tr
    10·2 answers
  • What is the missing operation? 48?(-8)=(-6)​
    6·1 answer
  • What is the measurement of a square
    14·2 answers
  • I need help with this question please :)
    7·1 answer
  • Original price:23.99; Markdown:44%
    14·1 answer
  • Help please and no links!!!!
    15·1 answer
  • Solve the inequality and enter your solution as an inequality in the box below,
    15·1 answer
  • 3. If CE = 12, then AC =<br> 4. If BD = 36, then DE =
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!