Choose a positive integer N from the infinite set of positive integers N= {1,2,3,....n-1, n, n+1,...,[infinity]} with probability PN = 1/2^n For example P(N = 1) = P1 = 1/2, P(N = 2) = P2 = 1/4, P(N = 3) = P3 = 1/8, and so on. Consider the three events A = {1,2,3,4}, B = {n ∈ N is even} and C = {n ∈ N is odd} (a) Determine P(A) (b) Determine P(B) (c) Determine P(BIA) (d) Determine P(CAB).

Answers

Answer 1

The probability of  P(A) = 15/16, P(B) = 1/3, P(BIA) = 1/3, and P(CAB) = 0.

The probability of an occurrence is a number used in science to describe how likely it is that the event will take place. In terms of percentage notation, it is expressed as a number between 0 and 1, or between 0% and 100%. The higher the likelihood, the more likely it is that the event will take place.

(a) P(A) = P(1) + P(2) + P(3) + P(4) = 1/2 + 1/4 + 1/8 + 1/16 = 15/16
(b) P(B) = P(2) + P(4) + P(6) + ... = 1/4 + 1/16 + 1/64 + ... = 1/3
(c) P(BIA) = P(B ∩ A) / P(A) = (P(2) + P(4)) / P(A) = (1/4 + 1/16) / (15/16) = 5/15 = 1/3
(d) P(CAB) = P(C ∩ A ∩ B) / P(A ∩ B) = 0 / P(A ∩ B) = 0


Therefore, the probabilities of the events are: P(A) = 15/16, P(B) = 1/3, P(BIA) = 1/3, and P(CAB) = 0.

For more such questions on Probability

brainly.com/question/11234923

#SPJ11


Related Questions

Linear Equations Digital Escape! Can you find the slope-intercept equation of each line and type the correct code? i need help on this.

Answers

Therefore , the solution of the given problem of slope comes out to be slope-intercept equation y = 2x + 1.

Slope intercept: What does that mean?

The y-intersection axis's with the slope of the line marks the inflection point in arithmetic where the y-axis intersects a line or curve. Y = mx+c, where m stands for the slope and c for the y-intercept, is the equation for the long line. The y-intercept (b) and slope (m) of the line are emphasised in the equation intercept form. An solution with the intersecting form (y=mx+b) has m and b as the slope and y-intercept, respectively.

Here,

Y = mx + b, where m is the line's slope and b is the y-intercept, is the slope-intercept version of a linear equation. Given two points (x1, y1) and (x2, y2), we can use the following method to determine the slope of the line:

=> m = (y2 - y1) / (x2 - x1) (x2 - x1)

For instance, if the two locations (2, 5) and (4, 9) are provided, we can determine the slope as follows:

=> m = (9 - 5) / (4 - 2) = 2

The y-intercept can then be determined by using one of the locations and the slope. Let's use points 2 and 5:

=> y = mx + b

=> 5 = 2(2) + b

=> 5 = 4 + b

=> b = 1

As a result, the line going through the points (2, 5) and (4, 9) has the slope-intercept equation y = 2x + 1.

To know more about slope intercept visit:

https://brainly.com/question/19824331

#SPJ1

What is the solution of this inequality?

Answers

Answer: C

Step-by-step explanation:

Determine the area of the figure. (Hint: area of half circle plus area of
the triangle) The base of the triangle is 6cm and the radius of the circle
is 3cm. Round to the nearest tenth.
7
6 cm
3 cm

Answers

Answer:

35.13

Rounded: 35.1

Step-by-step explanation:

The figure will look like the attached image.

(My guess, based on hint)

We will first find the area of the circle.

Area of circle is radius squared times Pi

3x3x3.14=28.26

It is half circle so 28.26/2=14.13

The question didn't state the height, but the base is 6 and we'll assume it is 7 because the question has 7 in the third to last row. 7x6/2=21

14.13+21=35.13

What is the value of the variable if

the trinomial 3x^2-x+1 and the trinomial 2x^2+5x-4 have the same value?

Answers

Answer:

  x = 1 or 5

Step-by-step explanation:

You want the value(s) of x that make 3x^2-x+1 and 2x^2+5x-4 have the same value.

Equation

Equating their values, we have ...

  3x² -x +1 = 2x² +5x -4

  x² -6x +5 = 0 . . . . . . . . . subtract (2x²+5x-4)

  (x -5)(x -1) = 0 . . . . . . . factor

  x = 1 or x = 5 . . . . . . values of x that make the factors zero

The two trinomials will have the same value for x=1 and for x=5.

__

Additional comment

The attached graph shows the points where the trinomials have the same value.

You instructor is considering the installation of a circular dart board with radius 5.1 on the office wall, instead of actually reading your papers, it has been suggested that grades be assigned by chance by dividing the board into three grade sectors and tossing a dart. The area of an "A" sector with central angle 2.781 is ____. The area of a "B" sector with central angle 1.54519 is _____. The area of a "C" sector with central angle 112.128 degree is _____. Assume a dart is randomly thrown at the board and the grade is noted on your paper. List your grade in order of increasing likelihood: ___ ___ ___
If the chance of your receiving a given grade is based upon the size of the sector divided by the size of the whole circle, determine the likelihood that you will receive an "A" ______.

Answers

The area of an "A" sector with central angle 2.781 is 36.17 square units. The area of a "B" sector with central angle 1.54519 is 20.10 square units. The area of a "C" sector with central angle 112.128 degree is 49.81 square units. Grade in order of increasing likelihood: B, A, C. Likelihood that you will receive an "A" is 0.4427.

The area of a sector of a circle can be found using the formula A = (1/2)r^2θ, where r is the radius of the circle and θ is the central angle of the sector in radians. To find the area of each sector, we need to convert the central angles from degrees to radians by multiplying by π/180.

The area of an "A" sector with central angle 2.781 radians is A = (1/2)(5.1)^2(2.781) = 36.17 square units.

The area of a "B" sector with central angle 1.54519 radians is A = (1/2)(5.1)^2(1.54519) = 20.10 square units.

The area of a "C" sector with central angle 112.128 degrees is A = (1/2)(5.1)^2(112.128)(π/180) = 49.81 square units.

The total area of the circle is A = πr^2 = π(5.1)^2 = 81.71 square units.

The likelihood of receiving an "A" is the area of the "A" sector divided by the total area of the circle, or 36.17/81.71 = 0.4427.

The likelihood of receiving a "B" is the area of the "B" sector divided by the total area of the circle, or 20.10/81.71 = 0.2460.

The likelihood of receiving a "C" is the area of the "C" sector divided by the total area of the circle, or 49.81/81.71 = 0.6096.

Therefore, the grades in order of increasing likelihood are: B, A, C.

The likelihood that you will receive an "A" is 0.4427.

Learn more about Central angle:

https://brainly.com/question/29545058

#SPJ11

Please write a proof for this question.
And may you write with a proof for:
A(n) to be the arithmetic mean of the (positive) factors of n.
For which n is A(n) = 124?
Which n is equal to 427. I need the proof for the question

Answers

427.

The proof for the question is as follows:

A(n) is the arithmetic mean of the (positive) factors of n.

We want to find the n for which A(n) = 124.

Let F be the set of (positive) factors of n, and let f1, f2,..., fm be the elements of F.

The arithmetic mean of F is defined as A(n) = (f1 + f2 + ... + fm)/m.

Now, we have A(n) = 124. So, 124 = (f1 + f2 + ... + fm)/m.

Therefore, 124m = f1 + f2 + ... + fm.

This implies that f1 + f2 + ... + fm = 124m = 427.

Thus, n = 427.

Learn more about factors

brainly.com/question/14209188

#SPJ11

The formula S = 4x() can be used to find the surface area of a sphere, where V represents its volume. A regulation
basketball has a volume of about 456 cubic inches. How much leather is needed (surface area) to make a regulation basketball? Round
your answer to the nearest tenth.

Answers

The surface area to the nearest tenth value is somewhere around 285.9 cm². We can find it in the following manner,

Given the formula is S= 4πr²

And the volume of the regulation basketball is given as 456cm³

Since we know the formula for sphere is (4/3)πr³ we can find the radius from the volume of formula

V= (4/3)πr³

456cm³= (4/3)πr³

456= (4/3)(22/7)r³

r= 4.77 cm

Therefore the radius come out to be 4.77 cm

Now to find the surface area according to the first formula that is S= 4πr² where S represent surface area

S= 4πr²

S= 4 x (22/7) x (4.77)²

S= 285.92 cm²

Therefore the surface area to the nearest tenth value is somewhere around 285.9 cm²

Learn more about surface area here brainly.com/question/29298005

#SPJ1

25 points and brainliest whoever gives right answer

Answers

Answer: D

Step-by-step explanation: Disregard the $ and solve algebraically.

[tex]4x+36\leq 52[/tex]

[tex]4x\leq 52-36[/tex]

[tex]4x\leq 16[/tex]

[tex]x\leq 4[/tex]

Answer: Choice D is the correct answer :)

Step-by-step explanation:

F. Prime and Maximal Ideals LetAbe a commutative ring with unity, andJan ideal ofA. Prove each of the following:1 A/Jis a commutative ring with unity.2Jis a prime ideal iffA/Jis an integral domain. 3 Every maximal ideal ofAis a prime ideal. (HINT: Use the fact, proved in this chapter, that ifJis a maximal ideal thenA/Jis a field.) 4 IfA/Jis a field, thenJis a maximal ideal. (HINT: See Exercise 12 of Chapter 18.)

Answers

J is a maximal ideal.

1. To prove that A/J is a commutative ring with unity, note that the operations of addition and multiplication on A/J are well-defined and are commutative since they are inherited from the commutative ring A. Furthermore, the additive identity of A is the same as the additive identity of A/J, and therefore A/J has a unity.
2. Suppose first that J is a prime ideal of A. Then, if A/J is not an integral domain, there exist two nonzero elements x,y of A/J such that xy=0. This means that x and y are in the same coset of J in A. Thus, x-y is an element of J. Since J is prime, either x or y must be in J, which is a contradiction. Therefore, A/J is an integral domain. Conversely, if A/J is an integral domain, then the same argument can be reversed to show that J is a prime ideal.
3. If J is a maximal ideal of A, then A/J is a field by the fact proved in this chapter. Since a field is an integral domain, J is a prime ideal.
4. Suppose that A/J is a field. Then, for any ideal I of A, either I is contained in J or J is contained in I. This implies that J is a maximal ideal.

Learn more about contradiction

brainly.com/question/30701816

#SPJ11

Find the area of the triangle with the following vertices.
A(5, −1, -2), B(1, 1, 0), and C(3, 2, −1)
4 5

2 5

4 3

2 3

Answers

The area of the triangle with the given vertices is 4.47.

To find the area of the triangle with the given vertices, we can use the formula:
Area = (1/2) * |(B-A) x (C-A)|
Where "x" represents the cross product of two vectors.
First, we need to find the vectors B-A and C-A:
B-A = (1-5, 1-(-1), 0-(-2)) = (-4, 2, 2)
C-A = (3-5, 2-(-1), -1-(-2)) = (-2, 3, 1)
Next, we need to find the cross product of these two vectors:
(B-A) x (C-A) = (2*1 - 2*3, 2*(-2) - (-4)*1, (-4)*3 - 2*(-2)) = (-4, 0, -8)
Finally, we can find the area of the triangle by plugging in the values into the formula:
Area = (1/2) * |(-4, 0, -8)|
Area = (1/2) * √((-4)^2 + 0^2 + (-8)^2)
Area = (1/2) * √(80)
Area = (1/2) * 8.94
Area = 4.47
Therefore, the area of the triangle with the given vertices is 4.47.

Learn about Area of the triangle

brainly.com/question/19305981

#SPJ11

A fair 20-sided die is rolled 60 times, and the value of chi-square is computed using expected counts of 3 for each face. If this process is repeated many times, the shape of the distribution of the values of chi-square should be...
A) uniform
B) bimodal
C) skewed left
D) skewed right
E) approximately normal

Answers

The correct answer is E) approximately normal.

When the process of rolling a fair 20-sided die 60 times and computing the value of chi-square using expected counts of 3 for each face is repeated many times, the distribution of the values of chi-square should be approximately normal. This is because the chi-square distribution is a special case of the gamma distribution, and as the degrees of freedom increase, the chi-square distribution approaches a normal distribution. In this case, the degrees of freedom are 19 (20-1), which is a relatively large number, so the distribution should be approximately normal.

To summarize, the repeated process of rolling a fair 20-sided die 60 times and computing the value of chi-square using expected counts of 3 for each face will result in an approximately normal distribution of the values of chi-square.

Learn more about process

brainly.com/question/29487063

#SPJ11

ACTIVITY (EXPERIMENTAL PROBABILITY) 50 trials

The dice i roll: 2, 3, 4, 4, 4, 4, 6, 5, 2, 4, 2

What is the probability of rolling a sum of even number?

What is the probability of rolling a sum of odd number?

What is the probability of rolling a sum of greater than 5?

This is for statistics ok? Ty!U,,w,,U

Answers

The probability of rolling a sum greater than 5 is 13/18.

What is the probability?

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes

There are six different possible outcomes for a dice, the set (S) of all the outcomes can be listed as follows:

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)

(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)

(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)

(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)

a) The probability of rolling a sum of even number

Number of favorable outcomes = 9

Total number of outcomes = 36

Now, probability = 9/36

= 1/4

b) The probability of rolling a sum of odd numbers

Number of favorable outcomes = 9

Total number of outcomes = 36

Now, probability = 9/36

= 1/4

c) The probability of rolling a sum of greater than 5

Number of favorable outcomes = 26

Total number of outcomes = 36

Now, probability = 26/36

= 13/18

Therefore, the probability of rolling a sum greater than 5 is 13/18.

To learn more about the probability visit:

https://brainly.com/question/11234923.

#SPJ1

The Johnsons framed a family picture to hang on the wall. The perimeter of the frame is 42 inches.

Answers

By answering the above question, we may state that We are unable to solve this equation for both l and w since it has only one solution and two unknowns.

what is function?

Mathematicians research numbers, their variants, equations, forms, and related structures, as well as possible locations for these things. The relationship between a group of inputs, each of which has a corresponding output, is referred to as a function. Every input contributes to a single, distinct output in a connection between inputs and outputs known as a function. A domain, codomain, or scope is assigned to each function. Often, functions are denoted with the letter f. (x). The key is an x. There are four main categories of accessible functions: on functions, one-to-one capabilities, so many capabilities, in capabilities, and on functions.

We are aware of the frame's 42-inch circumference but are unaware of the picture's or frame's shape, as well as if the frame's breadth fluctuates or is constant.

With the assumption that the frame is rectangular and has a constant width, we might create the equation shown below:

2l + 2w + 4x = 42

where L stands for the picture's length, W for its width, and X for the frame's width (assuming there are four sides with the same width).

We are unable to solve this equation for both l and w since it has only one solution and two unknowns.

To know more about function visit:

https://brainly.com/question/28193995

#SPJ1

Hi, can anyone please answers this. I appreciate it very much. I need the answer and solution of (b) only​

Answers

The derivative of √(x + 3) / (x + 1) with respect to x is:

[(√(x + 3)) / (x + 1)]' = [1 - (√(x + 3))  (x + 1)] / [2(x + 1)²  √(x + 3)]

What is the derivative of the function?

To differentiate √(x + 3) / (x + 1) with respect to x, we need to use the quotient rule:

(f(x) / g(x))' = (f'(x) * g(x) - f(x) * g'(x)) / [g(x)]²

where f(x) = √(x + 3) and g(x) = x + 1.

Now, let's differentiate each term:

f'(x) = (1/2) * (x + 3)^(-1/2) * 1

= 1 / [2 * √(x + 3)]

g'(x) = 1

Substituting into the quotient rule formula:

[(√(x + 3)) / (x + 1)]' = [(1 / [2 * √(x + 3)]) * (x + 1) - (√(x + 3)) * 1] / [(x + 1)²]

Simplifying the expression:

[(√(x + 3)) / (x + 1)]' = [1 - (√(x + 3)) * (x + 1)] / [2 * (x + 1)² * √(x + 3)]

Learn more about differentiation here: https://brainly.com/question/25081524

#SPJ1

La diferencia "8 menos que q​

Answers

Answer:

q - 8

Step-by-step explanation:

q - 8

Answer:

q=0

Step-by-step explanation:

Write the decimal number that has the specified place values. 4 ones, 0 hundredths, 6 tens, 9 hundreds, 8 tenths

Answers

The answer of decimal number that has the specified place values is 964.8.

To write the decimal number, we need to understand the place value of each digit.

The place values are as follows:

- 9 hundreds = 900
- 6 tens = 60
- 4 ones = 4
- 8 tenths = 0.8
- 0 hundredths = 0.00

To write the decimal number, we add the place values together:

900 + 60 + 4 + 0.8 + 0.00 = 964.8

Therefore, the decimal number that has the specified place values is 964.8.

To know more about place values refer here:

https://brainly.com/question/27734142#

#SPJ11

can some body help me

Answers

Answer: 9

Step-by-step explanation:

Answer: 9

Working: Calculate how many boxes the line covers. This includes the negative area of the graph.

(a) How many ways can 8 people be arranged on 8 chairs in a row?
(b) How many ways can 8 people be seated around a circular table? (Note that rotating the chairs around the table does not change the seating) (c) Let {P.P2, P3, ...Ps} be eight people. How many committees can be selected from the people if ps has to be the chair of the committee (and so a member of the committee)?

Answers

There would be 40,320 ways can 8 people be arranged on 8 chairs in a row. There are 5,040 ways can 8 people be seated around a circular table. There are  128 committees can be selected from the people if ps has to be the chair of the committee

(a) The number of ways that 8 people can be arranged on 8 chairs in a row is 8! = 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 = 40,320. This is because there are 8 choices for the first chair, 7 choices for the second chair, and so on until there is only one choice for the last chair.

(b) The number of ways that 8 people can be seated around a circular table is (8-1)! = 7! = 7 * 6 * 5 * 4 * 3 * 2 * 1 = 5,040. This is because we can fix one person in one seat and then there are 7 choices for the next seat, 6 choices for the next seat, and so on until there is only one choice for the last seat.

(c) The number of committees that can be selected from the 8 people if Ps has to be the chair of the committee is 2^(8-1) = 2⁷ = 128. This is because there are 7 people left to choose from and each person can either be on the committee or not on the committee, which gives us 2 choices for each person.

Learn more about probability https://brainly.com/question/17037947

#SPJ11

Factoring out a monomial from a polynomial: Multiva Factor the following expression. 11u^(9)v^(8)-22u^(2)v^(2)y^(6)

Answers

The factored expression is 11u^(2)v^(2)(u^(7)v^(6) - 2y^(6)).

Factoring out a monomial from a polynomial involves finding the greatest common factor (GCF) of the terms in the polynomial and then dividing each term by the GCF to get the remaining polynomial. In this case, the GCF of the two terms in the expression is 11u^(2)v^(2). So, we can factor out this monomial from the polynomial as follows:

11u^(9)v^(8) - 22u^(2)v^(2)y^(6) = 11u^(2)v^(2)(u^(7)v^(6) - 2y^(6))

Therefore, the factored expression is 11u^(2)v^(2)(u^(7)v^(6) - 2y^(6)).

Learn more about Factoring
brainly.com/question/14209188

#SPJ11

HELP THIS IS DUE TOMORROW USE ANY STRATEGIE

Answers

Answer: See attached.

Step-by-step explanation:

     The first one is incorrect because this equation shows 5 / 2, not 2/5.

     The second one is correct. 7/4 = 7/4.

     The third one is also correct. 12/4 = 12/4.

     It can help to rewrite both sides of the equation in the same format to make it easier to compare.

Mike has a mass of 50 kg. what's his weight in Newtons?​

Answers

Answer:

490 newtons

Step-by-step explanation:

Can some one help me with dis math

Answers

Answer:

Step-by-step explanation:

c

Answer:E

Step-by-step explanation:

2. Let \( \mathrm{V} \) be the subspace of \( \mathrm{R}^{3} \) consisting of \[ \begin{array}{r} x_{1}+2 x_{2}-3 x_{3}=0 \\ x_{2}-2 x_{3}=0 . \end{array} \] (a) Find all vectors (a subspace) that are

Answers

To find all the vectors that are in the subspace V of R³, we need to solve the system of equations given in the question. We can use the Gaussian elimination method to do this.

First, let's write the system of equations in matrix form:
\[ \begin{bmatrix} 1 & 2 & -3 \\ 0 & 1 & -2 \end{bmatrix} \begin{bmatrix} x_{1} \\ x_{2} \\ x_{3} \end{bmatrix} = \begin{bmatrix} 0 \\ 0 \end{bmatrix} \]

Now, we can use the Gaussian elimination method to find the solution:
Step 1: Subtract 2 times the second equation from the first equation to eliminate x₂:
\[ \begin{bmatrix} 1 & 0 & 1 \\ 0 & 1 & -2 \end{bmatrix} \begin{bmatrix} x_{1} \\ x_{2} \\ x_{3} \end{bmatrix} = \begin{bmatrix} 0 \\ 0 \end{bmatrix} \]
Step 2: Solve for x₁ and x₂ in terms of x₃:
x₁ = -x₃
x₂ = 2x₃
Step 3: Write the solution in vector form:
\[ \begin{bmatrix} x_{1} \\ x_{2} \\ x_{3} \end{bmatrix} = \begin{bmatrix} -x_{3} \\ 2x_{3} \\ x_{3} \end{bmatrix} = x_{3} \begin{bmatrix} -1 \\ 2 \\ 1 \end{bmatrix} \]

So, the subspace V is the set of all scalar multiples of the vector (-1, 2, 1). In other words, V = {x₃(-1, 2, 1) | x₃ ∈ R}.

To know more about vectors refer here:

https://brainly.com/question/29740341

#SPJ11

Gilberto decides to give a T-shirt to each of his sponsors. Each shirt costs

him $4. 75. He plans to pay for each shirt with some of the money he raises

from each sponsor.

Write an equation that represents the amount of money Gilberto

Answers

The equation that represents the amount of money Gilberto has after buying T-shirts for n sponsors at a cost of $4.75 per shirt can be written as nx - 4.75n = n² - 4.75n.

Assume count that Gilberto has n sponsors, and he plans to buy a t-shirt for each sponsor at a fee of $4.75 in step with a t-shirt. Assume also count on that every sponsor contributes x greenbacks to Gilberto's fundraising marketing campaign.

The overall amount of money Gilberto raises from all n sponsors is n instances x or nx. If Gilberto makes use of some of this cash to buy t-shirts, he may have nx - 4. 75n bucks left over.

Therefore, the equation that represents the quantity of cash Gilberto has after shopping for t-shirts is:

nx - 4. 75n = (n - 4. 75)n

simplifying this equation, we get:

nx - 4. 75n = n² - 4. 75n

Learn more about the equation:

brainly.com/question/29657983

#SPJ4

please help me out please

Answers

The slope of the line as shown in the image attached below is: 2/3.

How to Find the Slope of a Line Using the Rise and Run?

The slope of a line represents the ratio of the change in y (vertical) to the change in x (horizontal). It is a measure of the steepness of the line and tells us how much the y-value changes for each unit change in the x-value.

It is given as:

Slope (m) = rise/run.

The rise (blue line) = 2 units

The run (red line) = 3 units

Slope (m) = -2/3

Learn more about the slope of a line on:

https://brainly.com/question/29044610

#SPJ1

The amount of radioactive element remaining, r, in a 100-mg sample after d days is represented using the equation . What is the daily percent of decrease?

Answers

The daily percent οf decrease is 12.94%.

Sο the cοrrect οptiοn is: 12.94%.

What is the percentage decrease?

Percentage decrease is the percentage by which a quantity οr value has decreased cοmpared tο its οriginal οr previοus value. It is calculated by taking the difference between the οriginal value and the new value, dividing that difference by the οriginal value, and then multiplying by 100 tο cοnvert the result intο a percentage. The fοrmula fοr percentage decrease is:

Percentage decrease = [(Original value - New value) / Original value] x 100%

The fοrmula fοr the amοunt οf radiοactive element remaining, r, in a 100-mg sample after d days is given as:

[tex]r = 100(1/2)^{(d/5)[/tex]

Tο find the daily percent οf decrease, we need tο find the difference between the amοunt οf the element at the start οf a day and the amοunt at the end οf that day, and then express this as a percentage οf the starting amοunt.

Let's assume that we start with 100 mg οf the radiοactive element. After οne day, the amοunt remaining is:

[tex]r = 100(1/2)^{(1/5)[/tex] ≈ 87.06 mg

The difference between the starting amοunt and the amοunt at the end οf the day is:

100 - 87.06 = 12.94

Tο express this as a percentage οf the starting amοunt, we divide this difference by the starting amοunt and multiply by 100:

12.94/100 * 100% = 12.94%

Therefοre, the daily percent οf decrease is 12.94%.

Sο the cοrrect οptiοn is: 12.94%.

To learn more about the percentage decrease, visit:

https://brainly.com/question/11360390

#SPJ1

An 80.0-kg fisherman jumps from a dock into a 100.0-kg rowboat which is not moving. If the velocity of the fisherman is 4.00 m/s when he jumps into the boat, what is the final velocity of the fisherman and the boat?

Answers

If the velocity of the fisherman is 4.00 m/s when he jumps into the boat, then the final velocity of the fisherman and the boat is 1.78 m/s.

What is momentum?

Momentum is a vector quantity, which means that it has both magnitude and direction.

According to question:

We can solve this problem using the law of conservation of momentum, which states that the total momentum of a system is conserved if there are no external forces acting on it.

The system's starting momentum is determined by:

p1 = m1v1

where p1 is the initial momentum of the fisherman, m1 is his mass, and v1 is his initial velocity. Since the boat is initially at rest, its momentum is zero. As a result, the system's overall initial momentum is:

p1tot = p1 + p2 = m1v1

where p2 is the initial momentum of the boat and is equal to zero.

When the fisherman jumps into the boat, the system becomes a closed system with no external forces acting on it. As a result, the system's overall momentum must be conserved.

p1tot = p2tot

where p2tot is the final momentum of the system. The system's final momentum is determined by:

p2tot = (m1 + m2)vf

where m2 is the mass of the boat, and vf is the final velocity of the boat and the fisherman.

We can rearrange these equations to solve for the final velocity vf:

p1tot = p2tot

m1v1 = (m1 + m2)vf

vf = (m1v1)/(m1 + m2)

Substituting the given values, we get:

vf = (80.0 kg)(4.00 m/s)/(80.0 kg + 100.0 kg)

vf = 1.78 m/s

Therefore, the final velocity of the fisherman and the boat is 1.78 m/s.

To know more about momentum visit:

https://brainly.com/question/29598011

#SPJ1

The Serenity and the Mystic are sail boats. The Serenity and the Mystic start at the same point and travel away from each other in opposite directions. The Serenity travels at 16 mph and the Mystic travels at 20 mph. How far apart will they be in 2 hours?The Serenity and the Mystic are sail boats. The Serenity and the Mystic start at the same point and travel away from each other in opposite directions. The Serenity travels at 16 mph and the Mystic travels at 20 mph. How far apart will they be in 2 hours?

Answers

They will be 72 km far apart after 2 hours. The solution has been obtained by using the concept of relative speed.

What is the relative speed?

The speed of a moving body relative to another might be referred to as relative speed. The differential between two moving bodies is used to calculate their relative speed. Yet, the relative speed of two bodies travelling in opposition to one another is determined by summing their respective speeds.

We are given that the Serenity and the Mystic travels in the opposite direction at 16 mph and at 20 mph respectively.

So,

The relative speed = 16 + 20 = 36 mph

Now,

After 2 hours the distance between them will be as follows

36 × 2 = 72 mph

Hence, they will be 72 km far apart after 2 hours.

Learn more about relative speed from the given link

https://brainly.com/question/30859071

#SPJ1

What the greatest common factor of 10x and 25

Answers

Answer:

5

Step-by-step explanation:

Repost
Simplify.
4x^3 - 12x^2
__________
4x^2 + 7x - 2
__________
2x^2 - 6x
__________
5x^2 + 11x + 2

Answers:
A. 2x(5x-1)
_____
4x-1
B. 2x(5x+1)
_____
4x-1
C. x(5x+1)
_____
4x-1
D. x(5x+1)
_____
2(4x-1)

Answers

67-322:8790 answer it’s correct

Answer:

the answer is B. 2x(5x+1)

Other Questions
3/a times what equals 1 The coordinates of two trianglesare shown in the table. Is XYZ a dilation of JKL? Write anargument that can be used to defend your solution.AJKLJKL(a, b)(c,d)(a, d)XYZAXYZ(3a, 6b)(3c, 6d)(3a, 6d) I need help answering the following questions #1 - 6:1.) What cellular processes happen in the lysosomes andperoxisomes?2.) Compare and contrast the chloroplast and themitochondria.3.) What are t What is the volume of gold obtained once submerged into the water determine how many positive real zeros the polynomial function may nave. f(x)=-7x^(7)+x^(3)-x^(2)+1 How did the Missouri Compromise attempt to ease tensions between the North and the South? How did Rachel Renee russel or her written works impact u 1. The U.S. government spends over $74 billion on its Supplemental Nutrition Assistance Program (SNAP) to provide millions of Americans with means to purchase food. Suppose in the absence of SNAP, the average consumer must allocate monthly income of $700 between food and "all other goods" such that the following budget constraint holds: $700 = $17.5A + $5F, where A is the quantity of "all other goods" and F is the quantity of food purchased.a. With quantity of food purchased as the dependent variable ("y" variable), derive the equation of the budget line from the given budget constraint in the absence of SNAP. Clearly show your steps and calculations. Provide economic interpretations of the coefficients (numeric values) in your derived budget line equation.b. Clearly state the economic condition for the average consumer equilibrium in consumption of food and "all other goods" in terms of the consumer personal and market rates of substitution between food and "all other goods."c. Graphically illustrate and carefully explain why the economic condition in (b) is the average consumer equilibrium condition in consumption of food and "all other goods."d. Assume that the average consumer receives a monthly SNAP (food stamps) benefit of $400 in addition to his/her personal monthly budget allocation of $700. Graphically illustrate and explain how SNAP alters the average consumers equilibrium if food stamps can be illegally exchanged for cash and food and "all other goods" are normal goods. Show your steps, calculations, and carefully explain. PLS HELPPP THYANK UUU PLS The data below shows the colors preferred by a group of people. We want to plot this on a pie chart. What will be the central angles of each of these categories?Red=blue=green=purple= A washing machine holds 10 gallons of water and drains 8 of the gallons in 2 minutes. What was the average flow through the pipe in 2 minutes? gallons/min write an informal letter to your grandfather/mother telling them that you are coming to spend your forthcoming holiday with them not less than 250words He said to her, "help the poor." (Into indirect Jefferson Davis was the president of the confederacy ? The first important technique is the viable plate count, also called the standard plate count or simply the plate count. The basic principle of this method is that single isolated bacteria form visible isolated colonies. This means that 1 colony then represents 1 viable, isolated bacterium. We are interested in knowing how many bacteria are in our sample, or put another way, how many colony forming units (CFU) are in our sample. To be sure you understand the process, look at the Lab 9: Viable Plate Count document in content, below these instructions. At the end of these lab instructions are a couple of videos that can illustrate individual parts of the process as well. Open a website about plate counting, (if links do not work, the web addresses are at the very end of the lab instructions) also called viable plate count, that explains the main methods used to determine viable cell counts in populations. You will be using this formula for counting colonies to determine the number of living bacteria in the stock solution: CFU stock solution = (CFU counted * dilution factor)/volume plated in mL Notice that if the plate on which the colonies were counted was the 10-5 dilution plate the dilution factor is 105. We remove the minus sign remember we are trying to determine the number of bacteria in the stock solution, which is going to be MANY, MANY more than is on our plate or in the chambers in Part 3. . . Question 3. Check this website to see why we always choose plates with a certain number of colonies to count to determine our CFUs per ml (scroll down to step 4). How many colonies will be on the plates used to count colonies and why do we choose that number? (worth 1 point) . Question 4. In the Lab 9 Viable Plate Count Procedure is all the information you need. At the end of that document find the plate youll be using to calculate the number of viable bacteria in my stock solution. After having found that plate and using the information above, what is the dilution factor youll use in the formula? (worth 2 points) . Question 5. In the Lab 9 Viable Plate Count Procedure the volume plated is shown. What is that volume? (worth 2 points) . Im Tall when Im Young, and Im Short when Im Old. What am I? Q3. Provide a description of the rules of the model including the genetics effects on phenotype. Q4. Briefly discuss how you expect additivity to impact heritability and the response to selection. Q5. Briefly discuss how your result differ from your expectations and why these differences may have occured What is it called when water is released through the stomata on a leaf? 3.[10points]Suppose{v1,,vk}is an orthogonal basis of a subspaceVofRnand{w1,,w}is an orthogonal basis ofV. (a) Show that{v1,,vk,w1,,w}is an orthogonal set. (b) Show that{v1,,vk,w1,,w}is basis ofRn. (c) Show thatdimV+dimV=n Characteristics of Electromagnetic SpectrumAnalog vs. Digital SignalsMultiple frequencies of the electromagnetic spectrum can carry communication signals and mass amounts of information. In general, signals sent using higher frequencies of the electromagnetic spectrum travel shorter distances but have a higher data-carrying capacity. This physical characteristic of electromagnetic waves limits the range and availability of frequencies for sending information.The electromagnetic spectrum is a limited resource. Since electromagnetic waves move outward in all directions, wave transmitters need to be focused to transmit their signals to a single specified location. Likewise, wave receivers can be focused to maximize signal reception from a particular location. However, the receiving antenna may still detect unintended signals that can interfere with reception.To avoid signal interference problems, multiple users cannot transmit radio signals at the same frequencies, at the same time, and in the same direction. The spectrum is scarce; at any given time and place, one use of a frequency prevents it from being used by others in the same location. As soon as one user stops transmitting signals over a portion of the spectrum, another user can immediately re-use it.There are two important types of signal transmissions to understand: analog and digital.wave that rises and fallsAnalog waveAnalog signal transmission information (sound, video, or data) travels in a continuous wave whose strength and frequency change depending on the amount of data being submitted.Travels in a continuous waveStrength and frequency varywave that rises and falls but is square instead of wavyDigital waveDigital signal transmission information is converted to ones and zeros which are formatted and sent as electrical pulses. Advantages of using digital signals include greater accuracy, noise reduction (unwanted signals) and an increased capacity for sending information.Travels as an electrical pulseMore accurate, less interference Help ASAP!1) What was the goal of the Kansas-Nebraska Act? 2) Was the goal accomplished? 3) To what extent did the Kansas-Nebraska Act of 1854 resolve the conflict over slave and free states?