What is the atomic number of an atom?


A. the number of electrons and neutrons


B. the number of protons


C. the number protons and neutrons


D. the number of neutrons

Answer:

x = 6

General Formulas and Concepts:

Pre-Algebra

Geometry

Step-by-step explanation:

Step 1: Set up equation

(8x + 2) + 70 + 60 = 180

Step 2: Solve for x

Answer:

100 1/4

Step-by-step explanation:

Answer:

1/9, 1/8, 1/7,1/5

Step-by-step explanation:

The fraction between 1/6 and 1/4 are 17/100, 19/100,1/5, and 21/100.

In such a fraction, the value that appears above the horizontal line is referred to as the numerator.

It represents the number of pieces removed from the whole. The denominator of a fraction is the numerical value that comes before the brings together various.

In another word, if we divide two numbers by each other then the upper word is called the numerator, and a lower word is called the denominator.

For example a fraction 1/5 here 1 will be the numerator and 5 will be denominated.

Given the fraction

1/6 = 0.16

1/4 = 0.25

Now all values in between of it will be the answer.

So,

0.17 = 17/100

0.19 = 19/100

0.20 = 20/100 = 1/5

0.21 = 21/100

Hence "The fraction between 1/6 and 1/4 are 17/100, 19/100,1/5, and 21/100".

For more about numerators and denominators,

brainly.com/question/19613319

#SPJ2

Answer:

Figure (c)

Step-by-step explanation:

a). Angles in the figure attached are the linear pair of angles.

    Since, sum of the linear pair of angles is 180°.

    2x + 38 = 180°

b). Angles given in this figure are the vertically opposite angles.

   Since, vertically opposite angles are equal in measure.

   2x = 38°

c). There are three angles given the picture.

   Since these angles are formed at a point of a line, sum of angles will be 180°.

   90° + 38° + 2x = 180°

   2x + 38 = 180 - 90

   2x + 38 = 90°

Therefore, figure (c) shows the equation.  

Answer:

c

Step-by-step explanation:

Answer:

Rigid transformations preserve segment lengths and angle measures.

Rigid transformations produce congruent figures.

If two figures are congruent, then there is a rigid transformation or a combination of rigid transformations that will map one onto the other.

Step-by-step explanation:

All of the answers are correct, meaning that A,B, and all true.

Answer:

seven hundred and three dollars

Step-by-step explanation:

Answer:

seven hundred three

Step-by-step explanation:

just read it in hundreads

Answer:

251.24$

Step-by-step explanation:

In order to find the answer to this question you just need to add the total cost together.

What we do know:

[tex]B=56.24[/tex]

[tex]NM=195[/tex]

[tex]56.24+195=251.24[/tex]

[tex]=251.24[/tex]

Hope this helps.

Answer:

y=5x+8.50

Step-by-step explanation:

Answer:

9/8

Step-by-step explanation:

1/2 = 4/8

5/8 + 4/8 = 9/8

Answer:

HOPE THIS HELPS!!!

Step-by-step explanation:

To find the product,

✔ multiply

the numerators and

✔ multiply

the denominators.

The product is

✔ 2/15

Divide:  2

5

 ÷  3

5

To divide, multiply by the

✔ reciprocal

.

The quotient is

✔ 2/3

.

Answer:

Izzdebizz was right i am at teacher

Step-by-step explanation:

its 5=54                                            that is what i thsiknss

Step-by-step explanation:

[tex]{:}\longrightarrow[/tex][tex]\sf 2 (x+4)+(x+1)=6 (2x)[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 2x+8+(x+1)=12x [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 2x+8+x+1=12x [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 2x+x+8+1=12x [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 3x+9=12x [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 12x=3x+9 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 12x-3x=9 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 9x=9 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf x={\dfrac {9}{9}}[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf x=1 [/tex]

Answer/Step-by-step explanation:

Since ∆PHS ≅ ∆CNF, therefore:

<P ≅ <C,

<H ≅ <N

<S ≅ <F

Thus:

Since, <P ≅ <C, therefore,

36° = (4z - 32)°

36 = 4z - 32

Add 32 to both sides

36 + 32 = 4z

68 = 4z

Divide both sides by 4

68/4 = z

17 = z

z = 17

Since <H ≅ <N, therefore:

6x - 29 = 115°

Add 29 to both sides

6x = 115 + 29

6x = 144

Divide both sides by 6

x = 114/6

x = 24

m<F + m<C + m<N = 180° (sum of ∆)

(3y - 1) + (4z - 32) + 115 = 180 (substitution)

Plug in the value of z and solve for y

3y - 1 + 4(17) - 32 + 115 = 180

3y - 1 + 68 - 32 + 115 = 180

3y + 150 = 180

Subtract 150 from both sides

3y = 180 - 150

3y = 30

y = 10

The value of x, y and z are 24, 10 and 17 respectively.

PHS≅CNF

Therefore,

∠P ≅ ∠C

∠H ≅ ∠N

∠S ≅ ∠F

36 = 4z - 32

36 + 32 = 4z

4z = 68

z = 68 / 4

z = 17

6x - 29 = 115

6x = 115 + 29

x = 144 / 6

x = 24

3y - 1 = 180 - 115 - (4z - 32)

3y - 1 = 180 - 115 - 4z + 32

3y - 1 = 97 - 4(17)

3y - 1 = 29

3y = 30

y = 30 / 3

y = 10

learn more: https://brainly.com/question/20502277?referrer=searchResults

Answer:

When the  sample size is  [tex]n_1 = 5[/tex] ,

   [tex]P( X < 11) = 0.9875[/tex]

When the  sample size is  [tex]n_2 = 6[/tex] ,

   [tex]P( X < 11) = 0.993[/tex]

Step-by-step explanation:

From the question we are told that

  The mean is  [tex]\mu = 9 \ min[/tex]  

   The standard deviation is [tex]\sigma = 2 \ min[/tex]

    The first sample size is  [tex]n_1 = 5[/tex]

    The second sample size is  [tex]n_2 = 6[/tex]

Generally the standard error of the mean is mathematically represented as

     [tex]\sigma_{x} = \frac{\sigma}{ \sqrt{n} }[/tex]

=>   [tex]\sigma_{x} = \frac{2}{ \sqrt{5} }[/tex]  

When the  sample size is  [tex]n_1 = 5[/tex] ,

Generally the standard error of the mean is mathematically represented as

     [tex]\sigma_{x} = \frac{\sigma}{ \sqrt{n} }[/tex]

=>   [tex]\sigma_{x} = \frac{2}{ \sqrt{5} }[/tex]  

=>   [tex]\sigma_{x} = 0.894[/tex]  

Generally the probability that the sample average amount of time taken on each day is at most 11 min is mathematically represented as

      [tex]P( X < 11) = P( \frac{X - \mu }{\sigma } < \frac{11 - 9 }{0.8944 } )[/tex]

[tex]\frac{X -\mu}{\sigma }  =  Z (The  \ standardized \  value\  of  \ X )[/tex]

      [tex]P( X < 11) = P( Z < 2.24 )[/tex]

From the z table  the area under the normal curve to the left corresponding to  2.24 is

      [tex]P( Z < 2.24 ) = 0.9875[/tex]

=>   [tex]P( X < 11) = 0.9875[/tex]

When the  sample size is  [tex]n_2 = 6[/tex] ,

Generally the standard error of the mean is mathematically represented as

     [tex]\sigma_{x} = \frac{\sigma}{ \sqrt{n} }[/tex]

=>   [tex]\sigma_{x} = \frac{2}{ \sqrt{6} }[/tex]  

=>   [tex]\sigma_{x} = 0.816[/tex]  

Generally the probability that the sample average amount of time taken on each day is at most 11 min is mathematically represented as

      [tex]P( X < 11) = P( \frac{X - \mu }{\sigma } < \frac{11 - 9 }{0.816 } )[/tex]

[tex]\frac{X -\mu}{\sigma }  =  Z (The  \ standardized \  value\  of  \ X )[/tex]

      [tex]P( X < 11) = P( Z < 2.45 )[/tex]

From the z table  the area under the normal curve to the left corresponding to  2.24 is

      [tex]P( Z < 2.45 ) = 0.993[/tex]

=>   [tex]P( X < 11) = 0.993[/tex]

Answer:

2775

Step-by-step explanation:

Hope this helped :)

Answer:

The kraken has 125 suction cups on each tentacle.

Step-by-step explanation:

We know that the kraken has 8 tentacles, and a total of 1000 suction cups.

We can find the answer by dividing 1000 by 8 to find the unit rate of suction cups per tentacle.

Answer:

wheres the addition or subtraction etc. in between the 2x and 3y

Step-by-step explanation:

??????

Answer:

Step-by-step explanation:

For number 1 the rate of change is 12 per 1  and for number 2 b is linear.

Answer:

X=4

Step-by-step explanation:

F(x)=g(x)

3(x + 1) - 5x=12 - (6x - 7)

3x+3-5x=12-6x+7

-2x+3=19-6x

-2x+6x=19-3 (collecting like terms)

4x=16 (divide both side by 4 (

X=4

Answer:

1,061.64

Step-by-step explanation:

Im sorry if this is wrong

Answer:

32

Step-by-step explanation:

8 times 4 = 32

Answer: the answer is 32

Step-by-step explanation:

He made 8 key chains each week for 4 weeks 8*4 is 32 because if you make 8 key chains for 4 weeks it will add up to 32 hope this helps

Answer:

8 students for every teacher

Step-by-step explanation:

112 divided by 14 is 8

Answer:

8 students per teacher

Step-by-step explanation:

[tex]\frac{112}{14\\}[/tex]=[tex]\frac{8}{1}[/tex] You get this by dividing both numbers by 14.

Answer:

what? there is nothing here... did you mean to attach a picture?

Step-by-step explanation:

=================================================

Work Shown:

Solve the given equation for y

2y = 3x - 10

y = (3x-10)/2 ..... divide both sides by 2

y = (3x)/2 - 10/2

y = (3/2)x - 5

The equation is in y = mx+b form with m = 3/2 as the slope.

The perpendicular slope is -2/3 because we flip the fraction and the sign from positive to negative.

Note how multiplying the original slope 3/2 and the perpendicular slope -2/3 leads to -1

(3/2)*(-2/3) = -1

This is true for any pair of perpendicular lines, assuming neither line is vertical.

Answer:

The solutions to the quadratic equation using the quadratic formula will be:

[tex]x=\frac{1}{2},\:x=\frac{1}{4}[/tex]

Step-by-step explanation:

Given the equation

[tex]8x^2-6x+1=0[/tex]

solving with the quadratic formula

[tex]\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}[/tex]

[tex]x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]

[tex]\mathrm{For\:}\quad a=8,\:b=-6,\:c=1[/tex]

[tex]x_{1,\:2}=\frac{-\left(-6\right)\pm \sqrt{\left(-6\right)^2-4\cdot \:8\cdot \:1}}{2\cdot \:8}[/tex]

as

[tex]\sqrt{\left(-6\right)^2-4\cdot \:8\cdot \:1}=2[/tex]

so

[tex]x_{1,\:2}=\frac{-\left(-6\right)\pm \:2}{2\cdot \:8}[/tex]

Separating the solution

[tex]x_1=\frac{-\left(-6\right)+2}{2\cdot \:8},\:x_2=\frac{-\left(-6\right)-2}{2\cdot \:8}[/tex]

solving

[tex]x_1=\frac{-\left(-6\right)+2}{2\cdot \:\:8}[/tex]

    [tex]=\frac{6+2}{2\cdot \:8}[/tex]

   [tex]=\frac{8}{16}[/tex]

   [tex]=\frac{1}{2}[/tex]

and

[tex]x_2=\frac{-\left(-6\right)-2}{2\cdot \:8}[/tex]

   [tex]=\frac{6-2}{2\cdot \:\:\:8}[/tex]

    [tex]=\frac{4}{16}[/tex]

    [tex]=\frac{1}{4}[/tex]

Therefore, the solutions to the quadratic equation using the quadratic formula will be:

[tex]x=\frac{1}{2},\:x=\frac{1}{4}[/tex]

Answer:

1/4 1/2

Step-by-step explanation:

Answer:

this is the Formel 4000:100×4=160