A Geiger counter counts the number of alpha particles from radioactive material. Over a
long period of time, an average of 16 particles per minute occurs. Assume the arrival of
particles at the counter follows a Poisson distribution. Round your answers to four decimals.
a) Find the probability of exactly 21 particles arrive in a particular one minute period.
0.0426053 O
b) Find the probability of exactly one particle arrives in a particular one second period.
0.20424755689724

Answers

Answer 1

a) The probability of exactly 21 particles arrive in a particular one minute period is 0.0426

b) The probability of exactly one particle arrives in a particular one second period is 0.2042

What is probability?

Probability is the ratio of the total number of conceivable outcomes to the number of outcomes in an exhaustive set of equally likely alternatives that result in a particular occurrence.

The probability is given by:

P(X=x) = (e⁻ⁿ nˣ)/x!

a)  The probability of exactly 21 particles arrive in a particular one minute period is given by :

P(X=21) = (e⁻16 × 16²¹)/21!

P(X=21) = (2.176746853×10¹⁸)/51090942171709440000

P(X=21) = 0.0426

b) The probability of exactly one particle arrives in a particular one second period is :

1 min = 16 particles

1 sec = 16/60 particles

1 sec = 0.2667 particles

P(X=1) = (e⁻⁽¹⁶/⁶⁰⁾ × (16/60)¹)/1!

P(X=1) = 0.2042

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Related Questions


Find the domain of the function f(x)=√100x²

Answers

The domain of the function √(100x²) will be (-∞,∞) as the definition of domain states that the set of inputs that a function will accept is known as the domain of the function in mathematics

What is domain?

The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x). A function's range is the set of values it can take as input.

What is function?

A function in mathematics from a set X to a set Y assigns exactly one element of Y to each element of X. The sets X and Y are collectively referred to as the function's domain and codomain, respectively.

Here,

The function is √(100x²).

The domain would be (-∞,∞).

The set of inputs that a function will accept is known as the domain of the function in mathematics, and the domain of the function √(100x²) will be (-∞,∞), according to the definition of domain.

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Find the distance between the pair of parallel lines with the given equations.y = -5xy = -5x + 26O A) 5 unitsO B) 14.14 unitsC) C) 5.10 unitsO D) 6 units

Answers

Solution:

Consider two lines with the following equations:

[tex]y_1=mx+c[/tex]

and

[tex]y_2=mx+c_2[/tex]

the distance d between these two parallel lines is given by the following equation:

First, we need to take one of the lines and convert it to standard form. For example, take the line:

y = -5x + 26

then, we obtain:

-5x-y+26=0

in this case, we get that

A = -5

B= -1

C = 26

Now we can substitute A, B, and C into our distance equation along with a point, (x1,y1) from the other line. We can pick any point on the line y2. Just plug in a number for x, and solve for y. I will use x = 2, to obtain:

y = -5(2) = -10

then

(x1,y1) = (2,-10)

Replacing these values into the distance equation, we obtain:

[tex]d\text{ = }\frac{|-5(2)+(-1)(-10)+26|}{\sqrt[]{(-5)^2+(-1)^2}}[/tex]

that is:

[tex]d\text{ = }\frac{|-10+10+26|}{\sqrt[]{(-5)^2+(-1)^2}}=\frac{26}{\sqrt[]{26}}=5.09\approx5.10[/tex]

so that, the correct answer is:

[tex]5.10\text{ units}[/tex]

los números que faltan.
What comes after
3.0

Answers

Answer:

3.1? 4.0? 3.0000001?

I did not know what are you mean sorry but uf i correct say me it

3 4. Diego estimates that there will need to be 3 pizzas for every 7 kids at his party. Select all the statements that express this ratio. (Lesson 2-1) (A.) The ratio of kids to pizzas is 7 : 3. B.) The ratio of pizzas to kids is 3 to 7. The ratio of kids to pizzas is 3: 7. (D. The ratio of pizzas to kids is 7 to 3. E. For every 7 kids, there need to be 3 pizzas.​

Answers

The statements in (A), (B), (E) are correct and satisfy the conditions in question.

What is ratio and proportion?
Majority of the explanations for ratio and proportion use fractions. A ratio is a fraction that is expressed as a:b, but a proportion says that two ratios are equal. In this case, a and b can be any two integers. The foundation for understanding the numerous concepts in mathematics and science is provided by the two key notions of ratio and proportion. Because b is not equal to 0, the ratio establishes the link between two quantities such as a:b.

Given, for every 7 kids, pizzas needed = 3 --(iii)
Therefore, for every 1 kid, pizza needed = (3/7)
Thus, for every x kids, pizza needed = (3/7)x
Again, ratio of pizzas to kids is = 3:7 --(i)
Also, the ratio of kids to pizza is = 7:3 --(ii)
From (A), using (ii), the statement in (A) is correct.
From (B), using (ii), the statement in (B) is correct.
From (C), using (i), the statement in (C) is incorrect.
From (D), using (i), the statement in (D) is incorrect.
From (E), using (iii), the statement in (E) is correct.
Thus, the statements in (A), (B), (E) are correct and satisfy the conditions in question.

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Please help! ♥️I have to get it done by the end of today thank youu sm♥️

Answers

The center of circle is P, diameter of circle is RQ and three radii are PR, PQ, PS.

What is circle?

A circle is a closed, two-dimensional object where every point in the plane is equally spaced from a central point.

The line of reflection symmetry is formed by all lines that traverse the circle. Additionally, every angle has rotational symmetry around the center.

From the given figure:

P = Center of circle

RQ =  diameter of circle

PQ,PS,PR = radii of circle

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A sole trader operates his business from
a warehouse, which has been damaged
by a fire, which occurred at the end of
the financial year. After the fire, the
remaining inventory that is undamaged
amounts to GHC 2,000 (cost). The
accountant establishes the following
information: I Inventory at the
beginning of the year was GHC 16,000 II
Purchases during the year were GHC
115,000 III Sales during the year were
GHC 140,000 IV The trader sells his
goods at a mark-up of 25% of cost What
is the value of the inventory lost in fire?

Answers

Beginning inventory = 16,000 Purchase = 115,000 Sales = 140,000 Mark up = 25% on cost Undamanged inventory = 2,000

The value of the inventory lost in fire is 2,000

How do you take inventory loss due to fire into account?

The cost of products available for sale is then subtracted from the cost of goods sold. The quantity will reflect how much inventory the fire has actually destroyed. As an illustration, $275,000 minus $80,000 = $195,000, which represents the amount of inventory destroyed in the fire.

Calculate the quantity of inventory destroyed by deducting the cost of sold goods from the cost of goods that are still in stock. In this scenario, the amount of merchandise lost in the fire was $275,000 less $70,000, or $205,000.

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PartBecause his goal is to bike 65 miles over four days, what equation can be used to find the number of miles he should bike on the first day, X? Donot combine like terms.

Answers

On the first day, he biked x miles

The next day, he will bike

Answer each part. If necessary, round your answers to the nearest hundredth.х5?(a) At Hoffman's Bike Rentals, it costs $31 to rent a bike for 7 hours.How many dollars does it cost per hour of bike use?Il dollars per hour(b) A color printer prints 10 pages in 3 minutes.How many minutes does it take per page?minutes per pageCheck0 2021 McGraw Hill Education All Rights.

Answers

EXPLANATION

If it cost $31/7 hours, we can apply the unitary method to get the unit cost:

[tex]\text{unit price=}\frac{31\text{ dollars}}{7\text{ hours}}=4.42\text{ dollars/hours}[/tex]

It will cost 4.42 dollars/hours

We can apply the same reasoning to the printer.

Which of the following is a correct interpretation of the expression -8 + (-8)?

Answers

The solution is:

*The expression describes the number that is 8 to the left of -8 on the number line. [Option A].

the double number line shows the price of one cupcake complete the table and show the same information as a double number line 5 to blank blank to 18 and 18 to blank

Answers

From the first diagram shown, we can see that 1 cupcake costs $1.5

To get the price of 5 cupcakes

Since 1cupcake = $1.5

5 cupcakes = $x

cross multiply

1 * x = 5 * 1.5

x = $7.5

Hence 5 cupcakes will cost $7.5

Since 1cupcake = $1.5

18 cupcakes = $x

cross multiply

1 * x = 18 * 1.5

x = $27

Hence 5 cupcakes will cost $27

To get the number of cupcakes priced $18

Since 1cupcake = $1.5

x cupcake = $18

1.5x = 18

divide both sides by 1.5

1.5x/1.5 = 18/1.5

x =

What is the area of this triangule? h = 12 in, b = 3 in

Answers

Answer:

Area = 18

Explanation:

The area of a triangle is given by

Area = 1/2 height * base length

Now in our case

height = 12 in, base length = 3 in; therefore, the area is

Area = 1/2 * 12 * 3

Area = 6 * 3

Area = 18

Which is our answer!

What is the value of x in the equation −6 + x = −2? (5 points)84−4−8

Answers

Given the equation:

[tex]-6+x=-2[/tex]

solving for x:

[tex]\begin{gathered} x=-2+6 \\ x=4 \end{gathered}[/tex]

ANSWER

x = 4

The Thompson family and the Kim family each used their sprinklers last summer. The Thompson family's sprinkler was used for 25 hours. The Kim family'ssprinkler was used for 35 hours. There was a combined total output of 1075 L of water. What was the water output rate for each sprinkler if the sum of the tworates was 35 L per hour?Thompson family's sprinkler:Kim family's sprinkler:

Answers

Let x be the rate of water output by the Thompson family and let y be the rate of water output by the Kim family.

We know that the Thompson family sprinkler was used for 25 hours, Kim's family sprinkler was used for 35 hours and that there was a combined total output of 1075 L of water; then we have the equation:

[tex]25x+35y=1075[/tex]

We also know that the combined water output was 35 L per hour, then:

[tex]x+y=35[/tex]

Hence we have the system of equations:

[tex]\begin{gathered} 25x+35y=1075 \\ x+y=35 \end{gathered}[/tex]

To solve this system we solve the second equation for y:

[tex]\begin{gathered} x+y=35 \\ y=35-x \end{gathered}[/tex]

And we plug this value in the first equation and solve for x:

[tex]\begin{gathered} 25x+35(35-x)=1075 \\ 25x+1225-35x=1075 \\ -10x=1075-1225 \\ -10x=-150 \\ x=\frac{-150}{-10} \\ x=15 \end{gathered}[/tex]

Once we have the value of x we plug it in the expression of y:

[tex]\begin{gathered} y=35-15 \\ y=20 \end{gathered}[/tex]

Therefore we have that:

[tex]\begin{gathered} x=15 \\ y=20 \end{gathered}[/tex]

which means:

Thompson family's sprinkler: 15 L per hour

Kim family's sprinkler: 20 L per hour.

A small publishing company is planning to publish a new book. Let C be the total cost of publishing the book (in dollars). Let be the number of copies of the book produced. For the first printing, the company can produce up to 100 copies of the book. Suppose that C = 10N + 700 gives C as a function of N during the the correct description of the values in both the domain and range of the function. Then, for eachchoose the most appropriate set of values.

Answers

In this case, we'll have to carry out several steps to find the solution.

Step 01:

data:

C = 10N + 700

Step 02:

functions:

C = total cost

N = number of copies

Domain:

number of copies produced

{0, 1, 2, 3, .... 100}

Range:

cost of publishing book (in dollars)

{700, 710, 720, 730, ... 1700}

That is the full solution.

I need help answering this question, if you can thank you very much.

Answers

Answer: We have to factor out the polynomial which is:

[tex]x^2+6x-16[/tex]

The factorization is as follows:

[tex]\begin{gathered} \text{ Method:} \\ \\ (x+a)(x+b)=x^2+(a+b)x+ab \\ \\ \\ ----------------------- \\ \text{ Solution:} \\ \\ x^2+6x-16 \\ \\ \text{ The unknowns }\rightarrow\begin{cases}ab={-16} \\ a+b={6}\end{cases} \\ \\ \\ \text{ The possible values are:} \\ \\ \\ a=8 \\ b=-2 \\ \\ \\ \text{ Because:} \\ \\ \\ (8)\times(-2)=-16 \\ (8)+(-2)=6 \\ \\ \\ \text{ Therefore the factored form is:} \\ \\ \\ (x+8)(x-2)=x^2+6x-16 \end{gathered}[/tex]

the following augmented matrix is in row-echelon form and represents a linear system. solve the system by using back-substitution if possible.

Answers

Given the matrix:

Given that it represents a linear system, we have the set of equations:

(1)x + 3y = 6

0x + (1)y = -1

x + 3y = 6..................equation 1

y = -1.........................equation 2.

Let's solve the system using substitution method.

Substitute -1 for y in equation 1:

x + 3(-1) = 6

x + (-3) = 6

x - 3 = 6

Add 3 to both sides:

x - 3 + 3 = 6 + 3

x = 9

From equation 2, we have the value of y:

y = -1

Therefore, the solution to the system is:

x = 9, y = -1

In point form:

(x, y) ==> (9, -1)

ANSWER:

x = 9, y = -1

determine whether the equation is linear to x. 5-3x=0

Answers

By definition a linear equation is an equation in which the highest power of any variable in the equation is always 1. In this case we have the equation:

[tex]5-3x=0[/tex]

We notice that this equation only has one variable, x, and that its power is 1. Therefore, the equation is linear.

Hello! I need some help with this homework question, please? The question is posted in the image below. Q4

Answers

a) f(0) = -1

b) f(1) = 1

c) f(4) = 7

d) f(5) = 121

Explanation:

. Since for every value between -2 (excluded) and 4 (included)

~ 0 , 1 and 4

You have to use the first equation

=> f(0) = 2 * 0 - 1 = -1

=> f(1) = 2 * 1 - 1 = 1

=> f(4) = 2 * 4 - 1 = 7

. For values between 4 (exclude) and 5(included)

~ 5

You have to use the second equation

=> f(5) = 5^3 - 4 = 121

4x-6a(8x)/98y Solve for x

Answers

1) Solving for x, the following equation:

We're going to isolate the x variable on the left:

[tex]4x-6a\frac{8x}{98y}[/tex]

7. Simplify(6x + y)s

Answers

Answer:

6xs + ys

Explanations:

The given expression is:

(6x + y)s

This can be simplified by simplying expanding the brackets

The equation then becomes:

6xs + ys

Answer:

6xs + ys

Step-by-step explanation:

Given the following information about events A, B, and C, determine which pairs of events, if any, are independent andwhich pairs are mutually exclusive.

Answers

Let's begin by identifying key information given to us:

[tex]\begin{gathered} P(A)=0.39 \\ P(B)=0.42 \\ P(C)=0.19 \\ P(A|B)=0 \\ P(C|B)=0.19 \\ P(A|C)=0.39 \end{gathered}[/tex]

When two events A and B are independent we have it thus:

[tex]undefined[/tex]

15. Find the volume of a rectangular prism with the following dimensions.a length of 11 cm, a width of 4.2 cm, and a height of 7.1 cm.3308.24 cm3328.02 cm322.3 cm346.2 cm

Answers

For this problem, we are given the dimensions of a rectangular prism and are asked to determine its volume.

The volume of a rectangular prism is given by the product of the three dimensions, therefore we have:

[tex]\begin{gathered} V=\text{ height}\cdot\text{ length}\cdot\text{ width}\\ \\ V=11\cdot4.2\cdot7.1=328.02\text{ cubic cm} \\ \end{gathered}[/tex]

The correct answer is 328.02 cubic centimeters.

Convert each slope-intercept or point slope equation into standard form.

y - 3 = 1/5(x + 6)

Answers

The Standard form of the equation will be as x - 5y = -21

What is Standard form of equation?

The standard form of the equation is defined as; Ax + By = C

Where, A, B and C are integers.

Given that the equation in slope - intercept form is;

⇒ y - 3 = 1/5 (x + 6)

Now,

We need to convert the equation in standard form as;

⇒ y - 3 = 1/5 (x + 6)

Now Change into standard form as;

⇒ y - 3 = 1/5 (x + 6)

Then Multiply by 5 both side, we get:

⇒ 5( y - 3) = (x + 6)

⇒ 5y - 15 = x + 6

⇒ 5y = x + 21

Now Subtract 21 both side, we get:

⇒ 5y - 21 = x + 21 - 21

⇒ 5y - 21 = x

⇒ - 21 = x - 5y

⇒ x - 5y = -21

Therefore,

The Standard form of the equation will be as x - 5y = -21

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RecoverySolve for x usingcross multiplication.2x + 132x11 -=x + 22x = [?]Enter

Answers

Answer:

x = 4

Step-by-step explanation:

Cross-multiplying means multiplying the numerator of one side by the denominator of the other side.

So, let's multiply the sides:

[tex]\begin{gathered} \frac{2x+1}{3}=\frac{x+2}{2} \\ 2\cdot(2x+1)=3\cdot(x+2) \end{gathered}[/tex]

Now, we can solve each side:

[tex]\begin{gathered} 4x+2=3x+6 \\ 4x-3x=6-2 \\ 1x=4 \\ x=4 \end{gathered}[/tex]

So, x = 4.

what is 140% 150,000

Answers

140 % of 150,000

[tex]\begin{gathered} 140\text{ \%=}\frac{140}{100} \\ \frac{140}{100}\times150000=\frac{21000000}{100}=210,000 \end{gathered}[/tex]

Can someone help out with a math prob?
pic of question below

Answers

The polar equation of the curve with the given Cartesian equation is r = √7

How to convert polar equation to cartesian equation

Given the Cartesian equation: x² + y² = 7

The relationships between polar and cartesian equation :

x = r cosθ

y = r sinθ

Where r is the radius and θ is the angle

Put the values of x and y into the given cartesian equation:

(r cosθ)² + (r sinθ)² = 7

r²cos²θ + r²sin²θ = 7

r²(cos²θ + sin²θ) = 7

Since the trigonometric identity cos²θ + sin²θ = 1

r²(1) = 7

r² = 7

r = √7

Therefore, the polar equation for the represented curve is r = √7

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Simplify and express in " a + bi " form.Show Detailed Step By Step Calculations

Answers

So, let's simplify

(8 - 10i) - (22 - 6i) =

8 -10i -22 +6i = (adding like terms)

-4i -14i

I need help with the work question Find area of regular polygon.Round to nearest tenth

Answers

Given:

The number of sides in a given polygon is n = 5.

The length of each side is s = 8

The length of the apothem is a = 5.5

To find:

The area of the regular polygon

Explanation:

The formula of the area of the regular polygon is,

[tex]\begin{gathered} A=\frac{1}{2}\times n\times s\times a \\ A=\frac{1}{2}\times5\times8\times5.5 \\ A=110\text{ units}^2 \end{gathered}[/tex]

Thus, the area of the given regular polygon is 110 square units.

Final answer:

The area of the regular polygon is 110 square units.

There are two boxes containing only red and purple pens.Box A has 12 purple pens and 3 red pens.Box B has 14 purple pens and 6 red pens.A pen is randomly chosen from each box.List these events from least likely to most likely.Event 1: choosing a purple or red pen from Box A.Event 2: choosing a green pen from Box B.Event 3: choosing a purple pen from Box B.Event 4: choosing a purple pen from Box A.Least likelyMost likelyEventEventEventEvent

Answers

Event 1: choosing a purple or red pen from Box A

All pens are purple or red so the probability is:

[tex]P=\frac{12+3}{15}=\frac{15}{15}=1[/tex]

Event 2: choosing a green pen from Box B

We don't have green pens, so the probability is 0.

Event 3: choosing a purple pen from Box B

We have 14 purple pens and 20 total pens, so:

[tex]P=\frac{14}{20}=\frac{7}{10}=0.7[/tex]

Event 4: choosing a purple pen from Box A

We have 12 purple pens and 15 total pens, therefore:

[tex]P=\frac{12}{15}=\frac{4}{5}=0.8[/tex]

Listing from least likely to most likely, we have:

event 2 < event 3 < event 4 < event 1

Answer:

Event 2, Event 3, Event 4, Event 1

Find the value of f(-9).

Answers

The function f(-9) is the -x value, find where the line is in the -y direction at -x = -9. The line crosses -y = -3 at -x = -9.

What is meant by the graph?

In mathematics, a graph is a visual representation or diagram that shows facts or values in an ordered way. The relationships between two or more items are frequently represented by the points on a graph.

In discrete mathematics, a graph is made up of vertices—a collection of points—and edges—the lines connecting those vertices. In addition to linked and disconnected graphs, weighted graphs, bipartite graphs, directed and undirected graphs, and simple graphs, there are many other forms of graphs. A graph is a diagram that depicts the connections between two or more objects.

The function f(-9) is the -x value, find where the line is in the -y direction at -x = -9. The line crosses -y = -3 at -x = -9.

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