Atomic number = 76, mass number = 192

Answers

Answer 1

Answer:

Step-by-step explanation:

number of neutrons is 192-76 = 116

number of electrons is 76


Related Questions

How many 1/8 are in 13/16?

Answers

9514 1404 393

Answer:

  13/2 or 6 1/2

Step-by-step explanation:

We can write the question in the form of an equation:

  13/16 = n×1/8

Multiplying by 8 gives ...

  8×13/16 = n

  13/2 = n = 6.5

The number of 1/8 in 13/16 is 6 1/2 or 13/2.

What is the value of this expression 3x[(7+8)x2+6]

Answers

Answer:

96 or 108

Step-by-step explanatio

Find the perimeter of the polygon above.

Answers

Answer:

perimeter=sum of all sides

=7x - 6 + 3x + 4 + x

=7x + 3x + x + 4 - 6

=11x - 2

Step-by-step explanation:

once again pls pls help thx so much to the ppl who take there time and help me with this ill mark you brainliest, send a thank you, and mark star5 :)​

Answers

Answer:

1/3 for a.

2/3 for b.

[character limit pass]

Find the equation of the
line that passes through
(-2,8) and (4,-9)

Answers

Answer: y=-17/6x+7/3

Step-by-step explanation:

Assume the 72-gon is a regular polygon. The measure of one interior angle is how many
degrees, and the measure of one exterior angle is how many degrees?

Answers

9514 1404 393

Answer:

interior: 175°exterior: 5°

Step-by-step explanation:

The sum of exterior angles is 360°, so the exterior angle can be easiest to find first.

  exterior angle = 360°/72 = 5°

The interior angle is the supplement of this.

  interior angle = 180° -5° = 175°

The measure of one interior angle is 175°; one exterior angle is 5°.

Simplify the following monomials

Answers

The first one I know for a fact is b^10

Answer:

4) b^10

5) 15x^11y^6

6) 8y^5x + 3x

Step-by-step explanation:

b^6 + b^4 = b^10 because this is multiplication. So you have to add the degrees

(3x^3y^5)(5x^8y^1) = 15x^11y^6. This is because

3 *5 = 15.

x^3 +x^8 = x^11

y^5 + y^1 = y^6.  

You have to add the degrees since this is also multiplication.

(2y^2)(4xy^3) + 3x = 24y^5x^2. This is because

2 * 4 = 8

y^2 + y^3 = y^5

x + 0 = x

Therfore, it is (8y^5x) + 3x as the final answer.

The difference of a number and 12 is 34. Find the number

Answers

Answer:

46

Step-by-step explanation:

Set up the equation:

x-12=34

Undo subtraction by addition

x-12+12=34+12

-12+12 cancels and 34 plus 12 is 46

x=46

What is the value of 7643 +6437 +4376 +3764?​

Answers

the answer is 22220. just add all the numbers together

A computer software vendor wants to estimate the number of times a computer will crash with its new operating system over the course of a year. A system administrator installs the operating system on a random sample of 34 computers. At the end of a year, the sample mean number of crashes is 5.6, with a standard deviation of 2.2. Find the confidence interval at a 90% confidence level for the mean number of crashes a computer will have with the new operating system over the course of a year.

Answers

Answer:

(4.9793, 6.2207)

Step-by-step explanation:

Given the data:

Sample size, n = 34

Sample mean, m = 5.6

Standard deviation, s = 2.2

Confidence interval = 90%

Using the relation :

m ± Zcritical * s/√n

Zcritical at 90% confidence interval = 1.645

Confidence interval ;

5.6 ± (1.645 * 2.2/√34)

5.6 ± 0.6206533

Lower boundary = 5.6 - 0.6206533 = 4.9793

Upper boundary = 5.6 + 0.6206533 = 6.2207

You
Graph 3x + 4y = 12.

Answers

Answer:

The graph is the equation 3x + 4y = 12 is attached below.

Step-by-step explanation:

Given the equation

3x + 4y = 12

First,

We need to determine the y-intercept:

We know that the value of the y-intercept can be determined by setting x = 0 and determining the corresponding value of y.

substitute x = 0 in the equation 3x + 4y = 12

3x + 4y = 12

3(0) + 4y = 12

0 + 4y = 12

4y = 12

divide both sides by 4

4y/4 = 12/4

y = 3

Thus, the y-intercept is: (0, 3)

Now, check the attached graph below.

Determining the y-intercept of the equation from the graph

From the graph, it is clear

at x = 0, y = 3

Thus, the y-intercept is (0, 3)

Determining the x-intercept of the equation from the graph

From the graph, it is clear

at y = 0,

3x + 4(0) = 12

3x = 12

x = 4

Thus, the x-intercept is (4, 0)

The graph is the equation 3x + 4y = 12 is attached below.

A class has 45 students. The probability of choosing at random a student
whose age is 10 or less is 2/3. How many students in the class
are 11 or older?

Answers

15 students are 11 or older

Can you divide an odd number into two equal groups

Answers

Answer:

No you can not it would come out as a decimal form.

Step-by-step explanation:

3 divided by 2 is 1.5 or 1 1/2

This is not divided evenly between each other

This proves that (no) anything that is a odd number can not be divided equally

Hope that helps

Jose wants to prove that the base angles of an isosceles triangle are congruent. Help!

Answers

Answer:

Last option

Step-by-step explanation:

That is your best choice because that is the option that tells you the angles are congruent and not the sides. I could be wrong tho.

The hypothesis to proof that the base angles of the isosceles triangle are congruent will be AC≅AB

An isosceles triangle is a triangle that has at least 2 congruent sides. The congruent sides are the legs of the triangle while the remaining side is called the base. The angles on the base is called the base angles.

The base angles of an isosceles triangle are congruent. The base angles are

∠BCA and ∠CBA and they are congruent. The sides AC and AB are congruent. AC≅AB.

Therefore, the hypothesis to proof that the base angles of the isosceles triangle are congruent will be as follows:

AC≅AB

read more: https://brainly.com/question/11802289?referrer=searchResults

PLEASE EEEEE !!!!!!!!!!!! I NEED IT


In ABC, m∠A measures twice m∠B. if exterior angle at C measures 126°, find m∠A


.
2: in abc the measure of the exterior angle at b 100° if m∠A is 4 times larger than m∠C find m∠C.



someone pleaseeeeeeeeeee

Answers

Answer:

1) ∠A=84°

2) ∠C=20°

Step-by-step explanation:

1)

First, find ∠C:

(I'm assuming the exterior angle of 126° makes a straight line with ∠C)

The angles on a straight line always add up to 180. Therefore:

∠C+126=180

∠C=180-126

∠C=54

Then find ∠B:

We also know that all the angles in a triangle add up to 180. Therefore:

∠A+∠B+∠C=180

∠A+∠B+54=180

∠A+∠B=126

(we know ∠A=2(∠B))

2(∠B)+∠B=126

3(∠B)=126

∠B=42

Now, find ∠A:

∠A=2(∠B)

∠A=2(42)

∠A=84°

2)

First, find ∠B:

(Again, I'm assuming the exterior angle of 100° makes a straight line with ∠B)

The angles on a straight line always add up to 180. Therefore:

∠B+100=180

∠B=180-100

∠B=80

Then find ∠A:

We also know that all the angles in a triangle add up to 180. Therefore:

∠A+∠B+∠C=180

∠A+80+∠C=180

∠A+∠C=100

(we know ∠A=4(∠C))

4(∠C)+∠C=100

5(∠C)=100

∠C=20°

Expression equivalent to 5(4x+5)

Answers

Answer:

20x+25

Step-by-step explanation:

We can use the distributive property to distribute the 5 out. This is equivalent of 5*4x + 5*5 which would give us 20x+25.

Answer:

(4x+5)=9x)

Step-by-step explanation:

++++++++(+±±±+++++++

In the equation 4u - 6 = 24, what is the next step in the equation solving sequence?


Identify and move the coefficient and variable.


Move all numbers without a variable.


Isolate the variable using inverse operations.


Combine like terms.

Answers

Answer:

Move all numbers without a variable

Step-by-step explanation:

you want to get the variable by itself so you'll add 6 to both sides of the = sign making it 4u = 30 then you'll divide both sides by 4 making u = 7.5

surface area of a cuboid 1cm by 10cm by 3cm​

Answers

Answer:

2lw + 2lh+2hw

Step-by-step explanation:

Answer:

If Im right you had to multiple 1 by 10 and 3

Step-by-step explanation:

Your answer will be 30 but dont forget to add the centimeter at the end

30cm

Hope this helps (:

Choose the two rectangles that have an area of 18 square centimeters.
6 cm
9 cm
OA
D.
3 cm
2 cm
9 cm
7 cm
B
E
9 cm
2 cm
5 cm
C
4 cm

Answers

Answer:

Rectangle ARectangle D

Step-by-step explanation:

To find the answer, calculate the area of the rectangles.

Area of rectangle = Length * Width

Rectangle A                                   Rectangle B                         Rectangle C

= 6 * 3                                              = 9 * 9                                  = 5 * 4

= 18 cm²                                           = 81 cm²                              = 20cm²

Rectangle D                                  Rectangle E

= 9 * 2                                              = 7 * 2                                

= 18 cm²                                           = 14 cm²

The two rectangles are therefore A and D.

if anyone can help me go on!!

the base is ?

the value of the expression is ?

Answers

Answer:

The base is 5

The exponent is 4

[tex]5\cdot 5\cdot 5\cdot 5=5^4[/tex]

And the value is 625

Step-by-step explanation:

Exponentials

If a number is multiplied by itself n times like shown below:

[tex]x\cdot x\cdot x\cdot ...x[/tex]

It can be written in exponential form:

[tex]x\cdot x\cdot x\cdot ...x=x^n[/tex]

Where x is the base and n is the exponent.

In the expression:

[tex]5\cdot 5\cdot 5\cdot 5[/tex]

The base is 5

The exponent is 4

Writing the expression using an exponent:

[tex]\mathbf{5\cdot 5\cdot 5\cdot 5=5^4}[/tex]

And the value is 625

Find the slope Show me

Answers

Answer:

the slope is

  -3/2

I GIVEEEEE BRAINLILSTE

Answers

Answer:

Answer: 39

Step-by-step explanation:

Volume of a Pyramid

Given a pyramid of triangular base area Ab and height H.

The volume of the pyramid is calculated by the formula:

[tex]\displaystyle V=\frac{1}{3}A_b\cdot H[/tex]

The perfume bottle is in the shape of a triangular pyramid with a height of H=9 inches. The area of the base is Ab=13 (square) inches.

Calculating the volume by substituting the given values:

[tex]\displaystyle V=\frac{1}{3}13\cdot 9[/tex]

[tex]\displaystyle V=39 \ in^3[/tex]

Answer: 39

Natalie went to the store to buy some cherries. The price per pound of the cherries is $6.25 per pound and she has a coupon for $2.75 off the final amount. With the coupon, how much would Natalie have to pay to buy 5 pounds of cherries? Also, write an expression for the cost to buy pp pounds of cherries, assuming at least one pound is purchased.

Answers

Answer: 6.25(5) - 2.75 = X

Step-by-step explanation:

Each pond costs 6.25 and she buys 5 pounds so multiply 5.25 and 5. Then subtract 2.75 which is the coupon to get your answer.

The expression is 6.25x - 2.75 = P

P being the total cost

13 out of 25 people agreed to help at a charity event. What percentage is
this?

21 out of 40 children arrived on time. What percentage were late? *

Find the percentage
A French test is out of 48 marks.
Simone scores 30 marks.
What is Simone's score as a percentage?​

Answers

Answer:

Hi! The correct answer is 3.25, 7.6 and 0.3!

Step-by-step explanation:

Two cuboid-shaped metal bars are the same size. They are 12.4 cm long, 5.6 cm wide and 2.5 cm thick.
One bar is iron with a density of 7.9 grams/cm3 and the other is copper with a density of 9.0 grams/cm3.

a Calculate the difference in their masses to the nearest gram.

Answers

Answer:

191 grams

Step-by-step explanation:

12.4×5.6×2.5=173.6

7.9×173.6=1371.44

9.0×173.6=1562.4

1562.4-1371.44=191

10 points :)

Square OABC is drawn on a centimetre grid.

O is (0,0) Ais (3,0) Bis (3, 3) C is (0, 3)

Write down how many invariant points there are on the perimeter of the square when

OABC is reflected in y = x

Answers

Answer:

No invariant point

Step-by-step explanation:

Yo!

When we translate a form, in this case a polygon We must observe the direction of the vector. Since our vector is:

1) Let's apply  that translation to this polygon, a square. Check it below:

2) The invariant points are the points that didn't change after the transformation, simply put the points that haven't changed.

Examining the graph, we can see that no, there is not an  invariant point, after the translation. There is no common point that belongs to OABC and O'A'B'C' simultaneously. All points moved.

I hope you understood !

What are the solutions to the absolute value inequality |x − 70| ≤ 3?

Remember, the inequality can be written as −3 ≤ x − 70 ≤ 3

or as x − 70 ≤ 3 and x − 70 ≥ −3.

Answers

Answer:

67 ≤ x ≤ 73

Step-by-step explanation:

The absolute value of a real number x is the non negative value of x. Therefore the absolute value of x (|x|) = x for x ≥ 0 and -x for x < 0.

An expression |x - a| = b signifies that x - a = b or -(x - a) = b

Given that |x − 70| ≤ 3, hence:

|x − 70| ≤ 3

x - 70 ≤ 3 or -(x - 70) ≤ 3

x ≤ 3 + 70 or x - 70 ≥ -3

x ≤ 73 or x ≥ -3 + 70

x ≤ 73 or x ≥ 67

67 ≤ x ≤ 73

Hence the solution of |x − 70| ≤ 3 is 67 ≤ x ≤ 73

What is 3x – 7y = 9 in slope-intercept form?

Answers

Hey there!

The answer to your question is y = -3/7x - 9/7

To answer this, we need to get y by itself on one side, so we need to solve for y:

3x - 7y = 9

-7y = 3x + 9

y = -3/7x - 9/7

Hope it helps and have an amazing day!

3. The Lions scored 11 runs in a baseball game. The Tigers scored 7 runs. Did the Tigers score 3 fewer runs than the Lions? Explain.​

Answers

Answer:

no

Step-by-step explanation:

if you subtract 11-7 you get 4 not 3

Instructions: Find the measure of the missing angles in the kite.
Please help!
:)

Answers

Answer

1)90°. 2)51°. 3)39°.

Step-by-step explanation:

1) it is straight so it is 90°

2)51° because the kite is symmetrical so it should be the same as the other side

3)90+51=141

180-141=39° so it is 39°

Hope this helps :) good luck

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