–5 + 2y = 5 5 ×– 2y = -5 o One Solution O Infinitely Many Solutions O No Solutions

Answers

Answer 1

The equations are,

–5 + 2y = 5, 5 ×– 2y = -5


Related Questions

Which of the following is a solution of y > |x| - 5?

Answers

Answer:

download gauthmath it will help you answer this

Which of these events is not mutually exclusive?
A) the chance that you will get a heads or tails when you flip a coin once.
B) the chance that you will only study for the test alone or with a friend.
C) the chance that you will meet your friends for pizza or at a chinese restaurant for dinner today at 6.
D) the chance that you will answer the ringing phone or take a walk.

Answers

The chance that you will get a heads or tails when you flip a coin once (option A) is not mutually exclusive.

Mutually exclusive events are events that cannot occur at the same time, or that do not have any overlap. In the case of flipping a coin, the possibility of getting a head and the possibility of getting tails are independent of each other, and both can occur simultaneously. Therefore, the chance that you will get heads or tails when you flip a coin once is not mutually exclusive.

On the other hand, the other events listed (B, C, and D) are mutually exclusive. The chance that you will only study for the test alone or with a friend cannot occur simultaneously, as you can either study alone or with a friend, but not both. Similarly, the chance that you will meet your friends for pizza or at a Chinese restaurant for dinner today at 6 cannot occur at the same time, as you can either go to the pizza place or the Chinese restaurant, but not both. And the chance that you will answer the ringing phone or take a walk cannot occur simultaneously, as you can either answer the phone or take a walk, but not both.

To learn more about the mutually exclusive, visit:

brainly.com/question/28565577

#SPJ4

The chance that you will get a heads or tails when you flip a coin once (option A) is not mutually exclusive.

this question is related to probability.

mutually exclusive

Mutually exclusive events are those events that do not occur at the same time.

For example, when a coin is tossed then the result will be either head or tail, but we cannot get both the results. Such events are also called disjoint events since they do not happen simultaneously.

probability

Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are. The analysis of events governed by probability is called statistics.

Learn more about probability here :-

https://brainly.com/question/30034780

#SPJ4

find the square root of 7

Answers

The value of the square root of 7 is,

⇒ √7 = 2.645

What is mean by Function?

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

WE have to given that;

To find the value of the square root of 7 .

Since, the square root of 7 is,

⇒ √ 7

⇒ 2.645

Thus, The value of the square root of 7 is,

⇒ √7 = 2.645

Learn more about the function visit:

https://brainly.com/question/11624077

#SPJ5

How you plug this in binomial probability

How you plug this in binomial probability

Answers

The Binomial probability of x = 3 for the given parameters is 0.2048

Using Binomial probability concept

The Binomial probability relation can expressed as :

\(P(x) = nCx * p^{n} * q^{n-x}\)

where :

n = number of trials = 17p = probability of success q = 1 - p

for x = 3

We substitute x into the equation thus :

P(x = 3) = 17C3 * (1/8)³ * (1 - 1/8)¹⁴

P(x = 3) = 0.2048

Therefore, the probability of x = 3 in the scenario given is 0.2048

Learn more on binomial probability:https://brainly.com/question/15246027

#SPJ1

7+2x/3=5 im stuck on this question pls hhelp my homework is due soon pls help

Answers

The value of X is 4

please see the attached picture for full solution

Hope it helps

Good luck on your assignment..

7+2x/3=5 im stuck on this question pls hhelp my homework is due soon pls help

1. What is the surface area of the sphere below?
12 cm

1. What is the surface area of the sphere below?12 cm

Answers

Answer:

Using 3.14 for pi

SA =1808.64 cm^3

Using the pi button

SA =1809.557368 cm^3

Step-by-step explanation:

The surface area of a sphere is given by

SA = 4 pi r^2

We are given a radius of 12

SA = 4 pi ( 12) ^2

SA = 4 pi * 144

SA = 576 pi

Using 3.14 for pi

SA =1808.64 cm^3

Using the pi button

SA =1809.557368 cm^3

5. Simplify: 2(4X+3)-(7X+6)
6. Find the perimeter of the metallic sheet
below
n
6
3n
3n
5
7. Write an expression for the sum of on-
sixth of m and one-seventh of n, minus 7
8. Simplify 5-³ x 5⁴ x 2²
9. Find the L.C.M of 2x3², 2x3x7 and 2x3²x5
10. What is the place value of 4 in the number
2043507?
11. Find the G.C.F OF 18,42 and 90​

Answers

Answer:

hshdjdjdjffhdiosekskskdkcjfiririrotr8tti5tittttit4i5i6i6832wy

The average number of road accidents that occur on a particular stretch of road

during a year is 11.

Ake

P(x = k) =

k!

k is the given number of event occurrences

A is the average rate of event occurrences

Using the Poisson distribution formula, what is the probability of observing exactly

7 accidents on this stretch of road next year? Answer choices are rounded to the

hundredths place.

Answers

Answer:0.06

Step-by-step explanation:

Gianna drives 5 miles in 10 minutes. If she drove three hours in total at the same rate,
how far did she go?
Before you try that problem, answer the question below.
How many minutes did Gianna drive in total?

Answers

Gianna is 90 miles far away in 3 hours of driving.

She drove in total of 180 minutes.

What is speed?

The speed can be defined as the rate at which an object covers some distance. Speed can be measured as the distance traveled by a body in a given period of time. The SI unit of speed is m/s.

Given,

Gianna drives 5 miles in 10 minutes

Speed per minute = 5/10 = 0.5 miles/minute

Gianna drove in total for 3 hours

1 hour = 60 minutes

3 hours = 60 × 3 = 180 minutes

Distance Gianna drove in 180 minutes = speed per minute × time

                                                                = 0.5 × 180

                                                                = 90 miles

Hence, Gianna drove 90 miles in 3 hours, 180 minutes is total time she drove.

Learn more about speed here:

https://brainly.com/question/28224010

#SPJ1


Assume that the variable U represents a positive real number

Assume that the variable U represents a positive real number

Answers

Answer:

Step-by-step explanation:

Assume that the variable U represents a positive real number

A) Find an equation for the line perpendicular to the tangent line to the curve y=x^3-4x+6 at the point (2,6)
-The equation is y=
b) What is the smallest slope on the curve? At what point on the curve does the curve have this slope?
-The smallest slope on the curve is
-The curve has the smallest slope at the point
c) Find equations for the tangent lines to the curve at the points where the slope of the curve is 8.

Answers

Answer:

f(x) = x³ - 4x + 6

f'(x) = 3x² - 4

a) f'(2) = 3(2²) - 4 = 12 - 4 = 8

6 = 8(2) + b

6 = 16 + b

b = -10

y = 8x - 10

b) 3x² - 4 = 0

3x² = 4, so x = ±2/√3 = ±(2/3)√3

= ±1.1547

f(-(2/3)√3) = 9.0792

f((2/3)√3) = 2.9208

c) 3x² - 4 = 8

3x² = 12

x² = 4, so x = ±2

f(-2) = (-2)³ - 4(-2) + 6 = -8 + 8 + 6 = 6

6 = -2(8) + b

6 = -16 + b

b = 22

y = 8x + 22

f(2) = 6

y = 8x - 10

The equation perpendicular to the tangent is y = -1/8x + 25/4

-The smallest slope on the curve is 2.92

The curve has the smallest slope at the point (1.15, 2.92)

The equations at tangent points are y = 8x + 16 and  y = 8x - 16

Finding the equation perpendicular to the tangent

From the question, we have the following parameters that can be used in our computation:

y = x³ - 4x + 6

Differentiate

So, we have

f'(x) = 3x² - 4

The point is (2, 6)

So, we have

f'(2) = 3(2)² - 4

f'(2) = 8

The slope of the perpendicular line is

Slope = -1/8

So, we have

y = -1/8(x - 2) + 6

y = -1/8x + 25/4

The smallest slope on the curve

We have

f'(x) = 3x² - 4

Set to 0

3x² - 4 = 0

Solve for x

x = √[4/3]

x = 1.15

So, we have

Smallest slope = (√[4/3])³ - 4(√[4/3]) + 6

Smallest slope = 2.92

So, the smallest slope is 2.92 at (1.15, 2.92)

The equation of the tangent line

Here, we set f'(x) to 8

3x² - 4 = 8

Solve for x

x = ±2

Calculate y at x = ±2

y = (-2)³ - 4(-2) + 6 = 6: (-2, 0)

y = (2)³ - 4(2) + 6 = 6: (2, 0)

The equations at these points are

y = 8x + 16

y = 8x - 16

Read more about tangent lines at

https://brainly.com/question/21595470

#SPJ1

Please help.
Thank you in advance.

Please help. Thank you in advance.

Answers

Answer:

its the last box and whisker plot

Step-by-step explanation:

Samuel drives 144 miles in 2 1/4 hours. If he continues at the same rate, he will have driven
miles in 6 hours

Answers

Find number of miles driven in one hour:

144 miles / 2 1/4 hours = 64 miles per hour

Multiply by 6 hours:

64 x 6 = 384 miles

Answer: 384 miles

Which of these statements describes the relationship between the two lines?A. They intersect at the point (2,1)B. They intersect at the point (1,2) C. They intersect at the point (1,0) D. They intersect at the point (0,3)

Which of these statements describes the relationship between the two lines?A. They intersect at the point

Answers

From the graph, we can see that the two lines intersect at point x = 2 and y = 1. This means that option A is the correct option.

Remember that when writing coordinates in the (2,1), the x value is always the 1st number while the y value is always the 2nd number.

If these cylinders and prisms were broken into two separate groups, what would be an equivalent ratio to 8/2? i dont have much longer and btw it doesn't have a picture.


100 points?

Answers

The Equivalent ratio to 8/2 is 4/1, 24/6, 32/8 and 48/12.

We have,

Cylinder and prism.

Here we have to find the equivalent ratio to 8/2.

First simplifying the given ratio as

8/2

= (4 x 2)/2

= 4 /1

Now, some more ratios equivalent to 8/2.

1. 8/2 x 3/3 = 24/ 6

2. 8/2 x 4/4 = 32/8

3. 8/2 x 6/6= 48/12

Learn more about Ratio here:

https://brainly.com/question/13419413

#SPJ1

Answer this urgently, please!!!!

Answer this urgently, please!!!!

Answers

Answer:

exact form: 55/256

decimal form: 0.21484375

Please help!!

Determine whether the inverse of F(x) is a function.

Please help!! Determine whether the inverse of F(x) is a function.

Answers

Answer:

f⁻¹(x) is not a function

Step-by-step explanation:

A function can only have one output value per input value. Multiple input values can have the same output value (horizontally), but multiple output values cannot have the same input value (vertically).

For example:

\(f(x)=x^2\\f(-2)=-2^2=4\\f(2)=2^2=4\)

This function has 2 inputs with the same output. That is valid.

However, if you take the inverse of that function:

\(f^{-1}(x)=\sqrt{x}\\f^{-1}(2)=\sqrt{2}=1.414\\f^{-1}(-2)=\sqrt{-2}=\sqrt{2}i\)

f⁻¹(-2) is an imaginary number. It doesn't exist, and so the inverse of f(x) is still a function because there is no vertical overlap. This is shown more clearly in the attached image.

The graph of the inverse of a function is just mirrored over y = x. This is also shown in the attached image. Any horizontal overlap the function may have becomes vertical overlap, and if those values still exist, the function cannot be a function.

In the function in your question, f(x) has some horizontal overlap around x = 0 and x = 8. If this was mirrored over y = x, the function at x = 8 would have 2 outputs, y = 0 and y = 8. As a result, it cannot be a function.

Let me know if I need to explain any part of that more clearly.

Please help!! Determine whether the inverse of F(x) is a function.

a triangular prism (like a box of toblerone) of mass m, whose two ends are equilateral triangles parallel to the xy plane with side 2a, is centered on the origin with its axis along the z axis. find its moment of inertia for rotation about the z axis. without doing any integrals write down and explain its two products of inertia for rotation about the z axis.

Answers

The moment of inertia for rotation about the z axis is  \(I & =\frac{a^2 M}{3}\).

A triangular prism of mass m, whose two ends are equilateral triangles.

Two ends are equal.

The xy plane with side 2a, is centered on the origin with its axis along the z axis.

Find the moment of inertia for rotation the z-axis.

It is divide into 4 triangles with side 'a' k one side is 3cm.

\($$\begin{aligned}& I_{\text {BiG }}=16 I_{\text {small }} . \\& I_{\text {BIG }}=4 I_{\text {small }}+P_{A T}\end{aligned}$$\)

It is fact that the big triangle is made up from four small triangles. connected with parallel axis theorem.

Now, we have to find the distance from the center of mas of small outer triangles to the origin. so, that it is PAT.

\($$\therefore z=2 \sqrt{x^2-\frac{a}{2} ^2}$$\)

\($$\begin{aligned}& =2 \sqrt{\left(\frac{a}{\sqrt{3}}\right)^2-\frac{a^2}{4}} \\& =2 \sqrt{\frac{a^2}{3}-\frac{a^2}{4}} \\I_{\text {Big }} & =\frac{\sqrt{3}}{3} a \cdot \\& \left.=4 I_{\text {small }}+3 m \frac{\sqrt{3}}{3} a\right)^2 \\I_{\text {Big }} & =4 I_{\text {small }}+\frac{3 m}{4} \frac{1}{3} a^2 \\& =\frac{a^2}{4}\end{aligned}$$\)

⇒ Now, by using the \($I_{\text {Big }}=I$\)

⇒\(I & =4\left(\frac{\sqrt{2}}{16}\right)+\frac{a^2 M}{4} \\\)

⇒\(4 I & =I+a^2 m\)

⇒\(4 I-I & =a^2 m \\\)

⇒\(3 I & =a^2 M . \\\)

⇒\(I \quad & =\frac{a^2 M}{3}\)

Therefore, the moment of inertia is \(I & =\frac{a^2 M}{3}\).

For more such questions on distance between points

https://brainly.com/question/15958176

#SPJ4

Determine if the set of vectors shown to the right is a basis for IR3 If the set of vectors is not a basis, determine whether it is linearly independent and whether the set 311-4 spans R 12 Which of the following describe the set?
A. The set is a basis for R3
B. The set is linearly independent.
C The set spans R3
D. None of the above

Answers

Answer:

The problem is clearly solved in the attachment

Determine if the set of vectors shown to the right is a basis for IR3 If the set of vectors is not a

Allison has 72 coins in her wallet. Some are dimes and the rest are nickels. The total value is $4.90.

Write a system of equations that models this situation where d = number of dimes and n = number of nickels.​

Answers

Answer:

d + n = 7210d + 5n = 490

Step-by-step explanation:

Given

Dime = d = 10c, Nickel = n = 5cTotal coins = d + n = 72Total value = $4.90 = 490c

Equations

d + n = 7210d + 5n = 490

There are two numbers that have a sum of 47. Three times the lesser
number is equal to 9 more than the greater number. What are the
numbers?

Answers

Answer:

The numbers are 14 and 33

---------------

Let the numbers be s and l.

We are given that:

Sum of the two is 47 and 3 times the lesser number is equal to 9 more than the greater number.

Set up equations:

s + l = 473s = l + 9

Eliminate l:

l = 47 - s and l = 3s - 9

Solve for s:

47 - s = 3s - 93s + s = 47 + 94s = 56s = 14

Find l:

l = 47 - 14l = 33

Plz help I need help

Plz help I need help

Answers

Answer:

The answer will be -45/4 or -11 1/4

Step-by-step explanation:

The first thing you will do is convert both numbers into improper fractions. -4 1/2 will be -9/2 and 2 1/2 will be 5/2. Once you do that, you will multiply each fraction and you should get -45/4. Finally, you would convert that into a mixed number which would be -11 1/4.

Hope that helps and if not, let me know!!

If for two non-zero vectors a,b : ∣a+b∣=∣a−b∣ then angle between them is:______a. 0b. 45c. 60d. 90

Answers

Answer:

\(90^\circ\)

Step-by-step explanation:

Given two non zero vectors, \(\vec a, \vec b\).

Let the angle between the two vectors = \(\theta\)

Given that:

\(|\vec a+\vec b|=|\vec a-\vec b|\)

Let us have a look at the formula for magnitude of addition of two vectors:

\(|\vec x+\vec y|=\sqrt{x^2+y^2+2xycos\theta}\)

Where \(\theta\) is the angle between the two vectors.

formula for magnitude of subtraction of two vectors:

\(|\vec x-\vec y|=\sqrt{x^2+y^2-2xycos\theta}\)

As per the given condition:

\(\sqrt{a^2+b^2+2abcos\theta}=\sqrt{a^2+b^2-2abcos\theta}\)

Squaring both sides:

\(a^2+b^2+2abcos\theta=a^2+b^2-2abcos\theta\\\Rightarrow 2abcos\theta=-2abcos\theta\\\Rightarrow cos\theta = -cos\theta\\\Rightarrow 2cos\theta = 0\\\Rightarrow cos\theta = 0\\\Rightarrow \theta = 90^\circ\)

So, the angle between the two vectors is: \(90^\circ\)

A wholesale list of a watch is $50. A dealer bought a shipment of watches at a discount of 20% and sold the watches at 10% above the whole sale list price. What was the profit on each watch ?

Answers

30 bucks was the profit for each one

The hypotenuse function is correct, but the main function has a problem. Explain why it may not work, and show a way to fix it. Your fix must be to the main function only; you must not change the hypotenuse function in any way.

Answers

Answer: hello your question is incomplete attached below is the missing codes

Answer : It may not work because; the double pointer P was not allotted a double using a new double ( I.e. Error in the main function ) also the cout statement was not written in the main function

Step-by-step explanation:

It may not work because; the double pointer P was not allotted a double using a new double ( I.e. Error in the main function ) also the cout statement  should be moved to the Main

The correction  is below

{

   double* p = new double;

   hypotenuse(1.5, 2.0, p);

  cout << "The hypotenuse is " << *p << endl;

}

The hypotenuse function is correct, but the main function has a problem. Explain why it may not work,

What are two different coin combinations that can equal 30% of a dollar?

Answers

3 dimes, 30 pennies , a quarter and a nickel , a dime and 20 pennies. (just add up to 30)

Write an algebraic expression for each situation below. Evaluate the expression for the given values. Jean earns a base salary of $500.00 per week as a sales consultant at retail store. She also earns 12% of all sales she makes. How much does she make in a week when she sells $650.00 worth of inventory?

Answers

Answer:

She makes $78 from the sales when added to the $500 of base salery, she makes $578

Step-by-step explanation:

The formula to find percentage is:

650 x 0.12 = 78

Express the second quantity as a percentage of the first: (a) 10 kilograms, 105 grams (b) 8 meters, 1 kilometer​

Answers

(a) As a percentage, 105 grams is 1.04% of 10 kilograms.

(b) As a percentage 1 kilometer is approximately 99.21% of 8 meters.

How to Express a Quantity as a Percentage of another?

(a) To express the second quantity, 105 grams, as a percentage of the first quantity, 10 kilograms, we first need to convert both quantities to the same unit.

10 kilograms is equal to 10,000 grams (since 1 kilogram = 1000 grams), so:

10,000 grams + 105 grams = 10,105 grams

105 grams / 10,105 grams * 100% = 1.04%

Therefore, 105 grams is 1.04% of 10 kilograms.

(b) To express the second quantity, 1 kilometer, as a percentage of the first quantity, 8 meters, we first need to convert both quantities to the same unit.

1 kilometer is equal to 1000 meters (since 1 kilometer = 1000 meters), so:

8 meters + 1000 meters = 1008 meters

1000 meters / 1008 meters * 100% = 99.21%

Therefore, 1 kilometer is approximately 99.21% of 8 meters.

Learn more about the percentage on:

https://brainly.com/question/24877689

#SPJ1

¿De qué número 64 es el 80%?

Answers

80 is the number 80*.8=64

The height of the cylinder is 4 feet.

We'll be analyzing the surface area of a round cylinder - in other words the amount of material needed to "make a can".

A cylinder (round can) has a circular base and a circular top with vertical sides in between. Let r be the radius of the top of the can and let h be the height. Since the top and bottom both are circles with radius r, the areas of the top and bottom both are πr2. You can think of the side as a rolled up rectangular piece that is h long by (the circumference of the circle) 2πr wide, so the side has a total area of h(2πr)

Thus the surface area of the cylinder, A, is A=2πr2+2πrh.

Part a: Assume that the height of your cylinder is 4 inches. Consider A as a function of r, so we can write that as A(r). What is the domain and range of A(r)?

Part b: Continue to assume that the height of your cylinder is 4 inches. Write the radius r as a function of A. This is the inverse function to A(r), i.e. r as a function of A or r(A). What is r(A) and what is the domain and range of r(A)? What is r(A)? (Do not include the units "inches" in your answer.)

Hints: Mobius accepts the following ways to type in mathematics:

To enter a square root such as x+3−−−−−√, you can type in sqrt(x+3)
To enter the number π, you can type in pi
To enter a division such as x+3y+1, you can type in (x+3)/(y+1)
Remember to use parentheses for order of operations!
Part c: If the surface area is 175 square inches, then what is the rardius r? Round your answer to 2 decimal places.

Hint: To compute a numeric square root such as 17.3−−−−√, you could

Use a spreadsheet such as Microsoft Excel or OpenOffice Calc and type in =sqrt(17.3)
Use a browser to connect to the Internet and type in sqrt(17.3) into a search field
use a calculator
The radius is *number* inches if the surface area is 175 square inches

Answers

Answer:

A) Domain : 0 ≤ r < ∞

    Range of A(r) : 0 ≤ A(r) < ∞

B)  Domain : 0 ≤ A < ∞

    Range of A(r) : 0 ≤ r(A) < ∞

C) r ≈ 3.64 inches

Step-by-step explanation:

Given data :

Area of cylinder = \(2\pi r^2 + 2\pi rh\)

h = 4 feet

hence Area of cylinder(A(r) ) can be expressed as : \(2\pi r^2 + 8\pi r\)

given; r > 0

A) Domain and range of A(r)

Domain : 0 ≤ r < ∞

Range of A(r) : 0 ≤ A(r) < ∞

B) attached below is the detailed solution

C) attached below is the detailed solution

The height of the cylinder is 4 feet. We'll be analyzing the surface area of a round cylinder - in other
Other Questions
Will give brainliest for a detailed solution to ALL PARTS to this probability problem! Thank you!The time to failure of a typical household refrigerator has the following PDF:f(t)=t/a 0t4 yr a.) What is the value of a? b.) What is the reliability of the refrigerator for the first year? c.) What is the probability that a refrigerator will fail during the first month? Kittel, 8th edComplex wavenectors in the energy gap. Find an expression for the imaginary part of the wavevector in the energy gap at the boundary of the first Brillouin zone, in the approximation that led to Eq. ( In the passage, sentence 15 marks a shift from a discussion of Flora'sO trip home to Bartonville to her settling in there by seeking the bestlocation for Lottie's giftO interactions with people on the train to her deciding whether or notto eat her potatodisagreement with the girl on the train to her getting comfortable inher home in BartonvilleO relationship with Lottie to her forming a new friendship with the girlon the train A U.S. firm has total assets valued at 736,000 located in Germany. This valuation did not change from last year. Last year, the exchange rate was .9434/$. Today, the exchange rate is .8945/$. By what amount did these assets change in value on the firm's U.S. financial statements? please some one helpppp!write the following word equation in to formula equation.A.sulphur+oxygen=sulfur dioxide B.Aluminum +oxygen=aluminum oxide C.calcium+oxygen=calcium oxide D.sodium+chlorine=sodium chloride E.potassium+oxygen=potassium oxide Where will you store your carolina distance learning kit box when it is not in use, and why? veintydosWhat is term that means the state of general well-being where one has improved cardiovascular response to exercise? Physical adaptation None Physical stability Mental stability Physical fitness Reca Can someone please help me? Reproductive system when runningFemale-Male- Own words 10 pts Describe how a species is commonly defined. Explain why the common definition for species may be problematic for some organisms, such as bacteria. The percentage of total industry output accounted for by the largest firms in an industry is called the: A parable will always end with a moral True or false .Select the three ratios that are in simplest form.4/911/136/514/21 There are 100 or 102 pennies in a dollar. How many pennies are there in a million (106) dollars? Write your answer using exponents. Mi abuela cocina la paella para nosotros. rewrite in direct object pronoun Calculator40%Increased in 360 What is the quantity of atoms in KMnO4 ? which of the following inequalities is graphed on the coordinates plane ? Write down the ratio of 350 cm to 25 cm.Give your answer in its simplest form The atomic number of Copper is 29, and the atomic mass is 63.546. What do these numbers mean in regards to protons, electrons, and neutrons?