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
lana66690 [7]
3 years ago
12

Is 0.2 a counting numbers

Mathematics
1 answer:
Margaret [11]3 years ago
5 0

No it's not.  Counting numbers are whole numbers, like 1,2,3,4..... and does not include zero.  We count 1 apple, 2 oranges, but not (usually) zero oranges!  Some sources define counting number as including zero, just like natural numbers have two definitions (including or not including zero).


You might be interested in
Use completing the square to determine which of the following gives the solutions to 3x2 - 24x + 40 = 28.
jeka94

Answer:

x=4+2\sqrt{3}

x=4-2\sqrt{3}

Step-by-step explanation:

<u>Completing the square</u>

when  ax^2+bx+c=0

Given equation:

3x^2-24x+40=28

Subtract 40 from both sides:

\implies 3x^2-24x=-12

Divide both sides by 3:

\implies x^2-8x=-4

Add the square of half the coefficient of x to both sides:

(\frac{b}{2})^2=(\frac{-8}{2})^2=16

\implies x^2-8x+16=-4+16

Factor the left side and simplify the right side:

\implies (x-4)^2=12

Square root both sides:

\implies x-4=\pm\sqrt{12}

Add 4 to both sides and simplify the radical:

\implies x=4\pm\sqrt{4 \cdot 3}

\implies x=4\pm\sqrt{4}\sqrt{3}

\implies x=4\pm2\sqrt{3}

5 0
2 years ago
Below is a drawing of a wall that is to be covered with either wallpaper or paint. The wall is 8 ft. high and
Snowcat [4.5K]

84 sq. ft of the wall has to be covered with paint or wallpaper.

Step-by-step explanation:

  • Step 1: Find the area of wallpaper to be covered by calculating the area of the wall and subtracting the areas of the window, mirror and fireplace from it. All are rectangular in shape with are given by A = length × width

Area of the wall = 8 × 16 = 128 ft²

Area of the window = 18/12 × 14 = 1.5 × 14 = 21 ft² (since 1 ft = 12 in)

Area of the fireplace = 5 × 3 = 15 ft²

Area of the mirror = 4 × 2 = 8 ft²

  • Step 2: Calculate the area to be painted or covered with wallpaper

Area of the wall to be covered with paint or wallpaper = 128 - (21 + 15 + 8)

                              = 128 - 44

                              = 84 ft²

5 0
4 years ago
Read 2 more answers
12x-20y=108 3x+ky=27 what is k
Sedaia [141]

Let's look at the second equation and try multiplying it by 4:

4 * (3x + ky) = 4 * 27

Which gives us:

12x + 4ky = 108

This looks almost exactly like the first equation except that instead of -20y, there is 4ky. We could try making them equal to each other and solving for k:

-20y = 4ky

-20 = 4k

k = -5

Then, the answer is k = -5.

3 0
3 years ago
I don’t get the problem and I’ve been trying to solve it
Black_prince [1.1K]
I'm gonna use c for circle, t for triangle, and s for square
c+t+s=13
t+s=8
c+8=13
c=5
c+t=7
t=2
s=6

circle is 5, triangle is 2, and square is 6
8 0
3 years ago
What is the value of x?<br><br> Enter your answer in the box.<br> x=
lara31 [8.8K]
By the Pythagorean Theorem, the length of x is

a^2 + b^2 = c^2                    Pythagorean Theorem
6^2 + b^2 = 10^2                 Substitute known variables
6^2 + b^2 - 10^2 = 0            Subtract 10^2 from each side 
6^2 - 10^2 = b^2                  Subtract b^2 from each side
√6^2-10^2 = √b^2                Take square root of each side
8 = b                                     Simplify

So, the length of x is 8. I hope this helps!
6 0
3 years ago
Read 2 more answers
Other questions:
  • laurel went swimming 7 times in 3 weeks. one time she swam for 1 1/2 hours. The other 6 times she swam for 30 minutes each time.
    15·1 answer
  • 6x-2x=24 HELP PLSSSSSS
    15·2 answers
  • Show steps for 20-7n=8(n-2)
    11·2 answers
  • What is the factored form of the polynomial?
    5·1 answer
  • You randomly choose one of the chips without replacing the photo shoot you choose a second to find the pro ability of choosing t
    13·1 answer
  • Find the other x-intercept for the parabola defined by this equation: y=-4x^2+12x-8
    14·1 answer
  • What is the number of outcomes in the sample space tossing a coin and spinning a spinner with 8 equal sections?
    13·1 answer
  • Greta is taking a road trip from Cincinnati to San Francisco. On the first day, she drove 650 miles in 10 hours. On the second d
    9·1 answer
  • What is the first error Alycia made in her proof.
    7·1 answer
  • When rounded to the ten thousands place, which of the
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!