What is the meaning of [tex]\pi (i-j)/n[/tex]?

What Is The Meaning Of [tex]\pi (i-j)/n[/tex]?

Answers

Answer 1

A regular polygon with n vertices' angle in radians between two consecutive axes of symmetry is referred to by the formula π(i - j) /n in the definition of the dihedral group D.

Answer 2

A regular polygon with n vertices' angle in radians between two consecutive axes of symmetry is referred to by the formula π(i - j) /n in the definition of the dihedral group D.

What is a subgroup?

A group G's subgroups are its subsets that are also groups that fall under the same operation as G. The same axioms of G—closure, associativity, identity, and inverse—are satisfied by a subgroup, which is a subset of G that does the same. The identity element of G must be present in a subgroup, and for any element g, the inverse of g must also be present. Every pair of components g1 and g2 in the subgroup must also have their product, g1g2, present in the subgroup.

A regular polygon with n vertices' angle in radians between two consecutive axes of symmetry is referred to by the formula π(i - j) /n in the definition of the dihedral group D.

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Related Questions

please help me with this pentomino question.

Answers

a. There are twelve unique pentominos possible in all.

b. In total, only 6 pentominos have the refection symmetry.

What is a pentomino?

A pentomino is an order 5 polyomino, or a plane polygon formed of 5 identical squares joined edge to edge. This is just linked with a certain arrangement of squares.

a. There are twelve unique pentominos possible in all which on reflection and rotation can create multiple more pentominos.

b. In total, 6 pentominos have refection symmetry which means that now the total pentominos are 18 of which 6 have reflection symmetry.

Hence, the required solution has been obtained.

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Graph the linear equation
5x -6y = 30 by following these steps:
Step 1: Find the x-intercept. Let y = 0 and solve for x.
x=

Answers

Answer:

Substitute 0 for the value of x and y.

5x - 6y = 30

5x - 6(0) = 30

5x = 30

The x-intercept is 6.

x = 6

(6, 0)

5x - 6y = 30

5(0) - 6y = 30

-6y = 30

y = -5

The y-intercept is -5.

(0, -5)

(The graph is in the picture)

Question 6(Multiple Choice Worth 5 points) (Statistical Measurements LC) Which of the following is a statistical question that can result in numerical data? What is the name of your favorite pizza store? How many hours this week did you spend on homework? O How many times did you go swimming this year? How many pink erasers do the students in your class have?​

Answers

The statistical question that can result in numerical data is "How many hours this week did you spend on homework?"

Identifying the statistical question that can result in numerical data?

The statistical question that can result in numerical data is "How many hours this week did you spend on homework?"

This is because the question is asking for a numerical response that can be measured and counted. The other options are not statistical questions that can result in numerical data.

"What is the name of your favorite pizza store?" is a question that asks for a categorical response, "How many times did you go swimming this year?" is a question that asks for a countable response, And "How many pink erasers do the students in your class have?" is a question that asks for a discrete numerical response.

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A principal of $1500 is invested at 8.5% interest, compounded annually.

How much will the investment be worth after 14 years?

Use the calculator provided and round your answer to the nearest dollar.

Answers

The investment will be worth approximately $4468 after 14 years.

What is annual interest rate?

Annual interest rate is the rate at which an investment or loan grows in value over the course of a year, expressed as a percentage. It represents the cost of borrowing or the return on investment over one year.

According to question:

The following equation can be used to determine the future value of an investment using compound interest:

FV = P * (r/n + 1)(n*t)

Where:

FV is the investment's future value.

The principal is P. (initial investment)

The annual interest rate is represented by r,

The number of times the interest is compounded annually by n (expressed as a decimal).

t is the time (in years)

In this case:

P = $1500

r = 8.5% = 0.085

n = 1 (compounded annually)

t = 14

With these values entered into the formula, we obtain:

FV = 1500 * [tex](1 + 0.085/1)^(1*14)[/tex]

     = $4467.56

Therefore, the investment will be worth approximately $4468 after 14 years.

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Find the gradients of lines A and B

Answers

(1,1) is the correct answer

The correct answer is (1,1) because both of the lines meet together at these numbers

Part 1: Hitting a golf ball into a tower? While on the golf course last weekend Marc hit into the rough, landing the ball behind a tall tree. To get out of the scenario, his best option was to hit the ball high enough so it goes over the tree and hopefully comes down in the fairway for his next shot. So with a mighty swing, he hit the ball into the air and was surprised to see it hit near the top of a 300 foot tall tower that he had not noticed. The formula for this shot is h(x) = -16xsquared + 120x, where h is the height of the ball and x is the number of seconds the ball is in the air. 1. How could Marc mathematically try to prove that he hit the ball near the top of the tower?​

Answers

Since the maximum height h is equal to 225 ft which is close to 300 ft we can conclude that Marc hit the ball near the top of the tower.

The maximum point of the quadratic function :

The concept used in this problem is the quadratic function and finding the maximum or minimum value of a quadratic function.

The x-coordinate of the vertex, which is the highest or lowest point on the graph, can be found using the formula:

=> x = -b / 2a

Here we have

The formula for the shot is h(x) = -16xsquared + 120x,

Where h is the height of the ball and x is the number of seconds the ball is in the air.

To mathematically prove that Marc hit the ball near the top of the tower, find the maximum height reached by the ball and compare it with the height of the tower.

To find the maximum height reached by the ball, find the vertex of the parabolic function h(x).

As we know

The x-coordinate of the vertex is given by:

x = -b / (2a)

Where a and b are the coefficients a and b

In this case, a = -16 and b = 120, so we have:

x = -120 / (2(-16)) = 3.75 seconds

The maximum height reached by the ball is given by:

h(3.75) = -16(3.75)² + 120(3.75) = 225 feet

To prove that Marc hit the ball near the top of the tower, we need to compare the maximum height reached by the ball (225 feet) with the height of the tower (300 feet).

Since the ball hit near the top of the tower, we can assume that it was close to the highest point of the tower when it was hit.

Therefore,

Since the maximum height h is equal to 225 ft which is close to 300 ft we can conclude that Marc hit the ball near the top of the tower.

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What are the answers to these questions?
A=?
B=?
f''(A)=?
f''(B)=?
Thus f(x) has a local max or min at A and a local max or min at B.

Answers

We can say that f(x) has a local maximum at A and a local minimum at B.

What is Function?

A function is a mathematical rule that assigns a unique output value to each input value. It describes the relationship between the input and output variables.

Critical numbers of a function are the values of the independent variable where the derivative is zero or undefined, indicating possible extrema or inflection points.

According to the given information:

To find the critical numbers of the function f(x), we need to find the values of x where f'(x) = 0 or f'(x) is undefined.

f(x) = cos(x) + √2/2

f'(x) = -sin(x)

Setting f'(x) = -sin(x) = 0, we get sin(x) = 0, which is true for x = nπ, where n is an integer. However, we only need to consider the values of x in the interval [0,2].

For n = 0, x = 0 is a critical number.

For n = 1, x = π is a critical number.

For n = 2, x = 2π is not in the interval [0,2], so we don't need to consider it.

Therefore, the critical numbers of f(x) in the interval [0,2] are A = 0 and B = π.

To find the nature of the critical points, we need to find the second derivative of f(x).

f''(x) = -cos(x)

Evaluating f''(x) at A and B, we get:

f''(A) = -cos(0) = -1, which means that f(x) has a local maximum at A.

f''(B) = -cos(π) = 1, which means that f(x) has a local minimum at B.

Therefore, we can say that f(x) has a local maximum at A and a local minimum at B.

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If you are performing a​ left-tailed z-statistic test with a sample size n​ = 85 and a 0.01 significance​ level, what is the critical​ value?

If your calculated value of the​ z-statistic is z​ = −1.95, what is your conclusion about the null hypothesis​ (reject the null hypothesis or fail to reject the null​ hypothesis)?

Answers

This null hypothesis prompt is actually straight forward. Note that where the above conditions exist, we must NOT reject the null hypothesis due to the values of the z-statistics and the significance level.

What is a nyll hypothesis?

The idea that there is no influence on the population is known as the null hypothesis. We can reject the null hypothesis if the sample contains sufficient data to refute the assertion that there is no impact in the population (p≤α ).

So to determine whether or not to accept or reject the null hypothesis, we must determine dthe z-score.

To find the the critial value for a left-tailoed test, where the signifiance level is 0.01, note that we must find the z-score that leaves 1% of the area in the left tail.

Using the standard distribution table, the z-score for 0.01 left tail is about -2.33.

Since

z-satistics which  is equal to -1.95 (as given) is greater than the z-score, we must NOT reject the null hypothesis.

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Will mark brainliest if answer is correct

Answers

All the intersection points are determined as (-65, 0, 3.48).

What are the intersection points?

To find the intersection points of the two given functions, we can set them equal to each other and solve for the values of x and y that satisfy the equation.

Setting y = 3x² + x - 10 equal to y = x³ + 6x² + d, we get:

3x² + x - 10 = x³ + 6x² + d

Rearranging this equation, we get:

x³ + 3x² - x + d - 10 = 0 ...........(1)

Now, since we are given that the two graphs intersect at x = -5, we can substitute x = -5 into equation (1) to find the value of d.

Substituting x = -5 into equation (1), we get:

(-5)³ + 3(-5)² - (-5) + d - 10 = 0

-125 + 3(25) + 5 + d - 10 = 0

75 + d - 10 = 0

65 + d = 0

d = -65

So the value of d is -65.

Now that we have the value of d, we can substitute it back into equation (1) to find the other intersection points.

Substituting d = -65 into equation (1), we get:

x³ + 3x² - x - 75 = 0 ...........(2)

Solve equation (2), using graphing system.

roots = (3.48, 0)

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Which function represents the inverse of function f?
= 3x + 5
O A. T (2)
O B.
O c.
O D.
=-3x - 5
x+ //
– ž
g(x) =
p(x) =
8(x) = 3z +5
x

Answers

The inverse function of f(x) = 3x + 5 is given as follows:

C. p(x) = 1/3x - 5/3.

How to obtain the inverse function?

The function in the context of this problem is defined as follows:

f(x) = 3x + 5.

To obtain the inverse function, first we must exchange the variables x and y, hence:

y = 3x + 5

x = 3y + 5.

Now we must isolate the variable y, hence:

3y = x - 5

y = (x - 5)/3.

p(x) = 1/3x - 5/3.

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3. Choose the best answer.
The ABC Ad Agency has two automotive tire chains as clients. This could lead to a(n)
A)conflict of interest
B)defect
C)stereotype
D)overworked staff

Answers

The correct option - A) conflict of interest is caused due to ABC Ad Agency has two automotive tire chains as clients.

Explain about the conflict of interest:

A conflict of interest arises when a person's personal interests, such as those related to their family, friends, finances, or social standing, potentially impair their judgement, choices, or actions at work. Conflicts of interest are taken seriously enough by government organisations that they are governed.

Conflicts of interest happen most frequently when requirements and interests collide. Because of the nature of connections against policies of organisations or regulations of the federal and state levels, various forms of conflicts of interest may arise. Humans are prone to prejudice (having an unfair preference) due to trivial considerations like friendship, food, or flattery. They can also be persuaded to make a choice by the prospect of gaining money, status, or power.

For the given data- The ABC Ad Agency has two automotive tire chains as clients.

This, could  lead to a(n) conflict of interest.

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Create a Truth Table for
A ⋀ ~B

Answers

By answering the presented question, we may conclude that Finally, the expressions fourth column represents the value of the expression A ⋀ ~B for each possible combination of truth values of A and B.

how can we create truth table?

To create a truth table for A ⋀ ~B, we first need to list all possible combinations of truth values for A and B, and then calculate the value of the expression A ⋀ ~B for each combination.

A B ~B A ⋀ ~B

True True False False

True False True True

False True False False

False False True False

In the above truth table, the first column lists all possible truth values of A, and the second column lists all possible truth values of B. The third column represents the negation of B, which is denoted as ~B. Finally, the fourth column represents the value of the expression A ⋀ ~B for each possible combination of truth values of A and B.

Therefore, the truth table for A ⋀ ~B is:

A B A ⋀ ~B

True True False

True False True

False True False

False False False

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what is the quotient and remainder of 39 divided by 8

Answers

Answer:

39 divided by 8 is equal to 4 with a remainder of 7.

The quotient is the number of times the divisor goes into the dividend. In this case, 8 goes into 39 4 times with a remainder of 7.

The remainder is the number that is left over after the divisor has been divided into the dividend. In this case, 7 is left over after 8 has been divided into 39.

Here is the long division of 39 by 8:

```

39 / 8

4

32

7

```

Step-by-step explanation:

The quotient of 39 divided by 8 is 4, and the remainder is 7.

We have,

When performing long division, we divide the dividend (39) by the divisor (8) to find the quotient and remainder.

  4

--------

8 | 39

  - 32

    ---

     7

Here's how the long division process works for 39 divided by 8:

-We start by dividing the first digit of the dividend (3) by the divisor (8). Since 3 is less than 8, we can't divide it evenly, so we move to the next digit (9).

- We now have 39 as the remaining portion of the dividend. We divide 39 by 8. The largest multiple of 8 that fits into 39 is 4. We place the quotient, which is 4, above the line.

- We multiply the quotient (4) by the divisor (8), which gives us 32. We subtract 32 from 39, which leaves us with a remainder of 7.

- Since there are no more digits to bring down from the dividend, and the remainder (7) is less than the divisor (8), we stop the division process.

Therefore,

The quotient of 39 divided by 8 is 4, and the remainder is 7.

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What is the value of n if the equation ny^2+2y-4=0 has exactly one root?

Answers

The value of n for the given equation is n = -1/4.

What is quadratic formula?

Finding the values of x that fulfil the quadratic equation can be done using the quadratic formula, which can be used to address a variety of issues in mathematics, physics, engineering, and other disciplines. The equation can be used to identify the roots of a quadratic equation even if it has complex roots or roots that are irrational because the formula works for any values of a, b, and c. The quadratic formula, a key tool in the study of quadratic functions and equations, is derived by completing the square of the quadratic equation.

The given equation is ny² + 2y - 4 = 0.

Given that it has exactly one root, thus the discriminant of the equation is:

b² - 4ac.

(2)² - 4(n)(-4) = 4 + 16n

4 + 16n = 0

16n = -4

n = -4/16

n = -1/4

Hence, the value of n for the given equation is n = -1/4.

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Find the area of the polygon

Answers

the area of the polygon is 960

2•20•2•12= 960

A bolynomial function has zeros √2, 4, and 61. What is the minimum degree of the
polynomial function?
A. 6
B. 5
C. 4
D. 3

Answers

Answer:

D) 3

Step-by-step explanation:

What kind of angle of ∠mah?
what is the value of x?
What is the measure of ∠tah ?

Answers

Because of this, we can infer from the given figure that x is 17, mat is 38°, and tah is 52°. Mah is 90° right angle.

What is a graph, and where did you get that answer?

(A) ∠mah is right angle(90°) [GIVEN IN THE FIGURE]

(B) (2x+4)+(3x+1) = 90

5x+5 = 90

x= 17

(C) 2x+4 = 2×17 + 4 = 38°

(D) 3X + 1 = 3 × 17 + 1 = 52°

A graph is a graphic representation or diagram that groups facts or values in mathematics. The links among two or more objects are commonly shown by the points on a graph.

In discrete mathematics, a graph is made up of vertices, which are collections of points, and edges, which are the connections between them. In addition to linked and unconnected graphs, balanced graphs, bipartite graphs, directed and unguided graphs, and simple graphs, there are many other forms of graphs.

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A baseball team has the starting and relief pitchers shown in the table. The manager selects a pitcher at random. Find the probability that the pitcher is left-handed.

Pitchers on Baseball Team (Table)
Pitchers Number
Left-handed starters 1
Right-handed starters 4
Left-handed relievers 2
Right-handed relievers 1

Answers

Okay, here are the steps to find the probability the randomly selected pitcher is left-handed:

1) There are 1 left-handed starter, 4 right-handed starters, 2 left-handed relievers and 1 right-handed reliever.

2) In total, there are 1 + 4 + 2 + 1 = 8 pitchers.

3) Of the 8 pitchers, 1 + 2 = 3 are left-handed.

4) So the probability the randomly selected pitcher is left-handed = (3/8) = 3/8 = 0.375

Therefore, the probability that the randomly selected pitcher from the team is left-handed is 0.375.

Let me know if you have any other questions!

1. All numbered streets runs parallel to each other. Both 3rd and 4th Streets are intersected by King Ave. as shown:

(a) Suppose a car is traveling east on 4th Street and turns onto King Avenue heading northeast. What is the measure of the angle created by the car's turning? Explain your answer.
(b) Suppose a car is traveling southwest on King Avenue and turns left onto 3rd Street. What is the measure of the angle created by the car's turning? Explain your answer.
(c) Suppose a car is traveling northeast on King Avenue and turns right onto 3rd Street. What is the measure of the angle created by the car's turning? Explain your answer.

Answers

When the car travels east on 4th Street and turns onto King Avenue heading northeast, the angle created by the car's turning is a 45-degree angle.

When the car travels southwest on King Avenue and turns left onto 3rd Street, the angle created by the car's turning is a 135-degree angle.

When the car travels northeast on King Avenue and turns right onto 3rd Street, the angle created by the car's turning is a 45-degree angle.

How to get the Angle?

(a) When the car travels east on 4th Street and turns onto King Avenue heading northeast, the angle created by the car's turning is a 45-degree angle. This is because the intersection of 4th Street and King Avenue creates a right angle, and the car turns northeast, creating another 45-degree angle with the horizontal 4th Street.

(b) When the car travels southwest on King Avenue and turns left onto 3rd Street, the angle created by the car's turning is a 135-degree angle. This is because the intersection of King Avenue and 3rd Street creates a right angle, and the car turns left, creating an additional 90-degree angle. Therefore, the total angle is 90 degrees + 45 degrees = 135 degrees.

(c) When the car travels northeast on King Avenue and turns right onto 3rd Street, the angle created by the car's turning is a 45-degree angle. This is because the intersection of King Avenue and 3rd Street creates a right angle, and the car turns right, creating another 45-degree angle with the horizontal 3rd Street.

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simplify [Xn (X'nY)]'.​

Answers

Answer:

(X'U'Y) + (XUY')

Step-by-step explanation:

Starting with [Xn(X'nY)]', we can use De Morgan's laws to simplify the expression:

[Xn(X'nY)]' = (Xn)' + (X'nY)'

Recall that Xn represents the logical operator "and", while X' represents "not X". Using these definitions, we can expand the expression:

(Xn)' + (X'nY)' = (X'U'Y) + (XUY')

where U represents the logical operator "or".

Therefore, [Xn(X'nY)]' simplifies to (X'U'Y) + (XUY').

How does examining the answers to a question help you determine if the question is a statistical question?

Answers

As a statistical question is one that can be addressed using statistical methods or analysis, looking at the responses to a question can help identify whether it is a statistical question.

In order to provide a response to a question regarding a population or sample, statistical inquiries typically entail gathering and evaluating data. Consequently, a statistical question's responses would require some sort of data analysis or interpretation.

As a result, we can tell if a question is statistical by looking at the replies and seeing if it requires the use of statistical techniques and data analysis to answer.

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All squares are quadrilaterals. True or false

Answers

Answer:

Step-by-step explanation:

yes because quadrilaterals have 4 sides and so do all squares

hope this answered your question

Write an equation for the polynomial graphed below

Answers

The polynomial in factor form is y(x) = - (1 / 6) · (x + 3) · (x + 1) · (x - 2) · (x - 3).

How to derive the equation of the polynomial

In this problem we find a representation of polynomial set on Cartesian plane, whose expression is described by the following formula in factor form:

y(x) = a · (x - r₁) · (x - r₂) · (x - r₃) · (x - r₄)

Where:

x - Independent variable.r₁, r₂, r₃, r₄ - Roots of the polynomial.a - Lead coefficient.y(x) - Dependent variable.

Then, by direct inspection we get the following information:

y(0) = - 3, r₁ = - 3, r₂ = - 1, r₃ = 2, r₄ = 3

First, determine the lead coefficient:

- 3 = a · (0 + 3) · (0 + 1) · (0 - 2) · (0 - 3)

- 3 = a · 3 · 1 · (- 2) · (- 3)

- 3 = 18 · a  

a = - 1 / 6

Second, write the complete expression:

y(x) = - (1 / 6) · (x + 3) · (x + 1) · (x - 2) · (x - 3)

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Suppose Fatima went to buy a $25,000 car and wanted to own it after 5 years. If she got a
4.7% interest rate, what is her monthly payment?

Answers

Therefore, Fatima's monthly payment would be $460.23.

What is interest?

Interest is the amount of money that is charged by a lender to a borrower for the use of money or a loan. It is usually calculated as a percentage of the principal amount (the amount of money borrowed) and can be either simple or compound, depending on the type of loan. Interest is typically paid by the borrower to the lender over a set period of time, such as monthly, quarterly, or annually. The interest rate can be fixed or variable, and is determined by a variety of factors including the borrower's creditworthiness, the amount of the loan, and the length of the repayment period.

Here,

To calculate the monthly payment for a car loan, we need to use the formula:

M = P [ i(1 + i)ⁿ] / [ (1 + i)ⁿ – 1]

Where:

M = monthly payment

P = principal (the amount of the loan)

i = monthly interest rate (annual interest rate divided by 12)

n = number of months

First, we need to calculate the monthly interest rate:

i = 4.7% / 12

= 0.003917

Next, we need to calculate the number of months:

n = 5 years x 12 months/year

= 60 months

Now, we can plug in the values and solve for M:

M = 25,000 [ 0.003917(1 + 0.003917)⁶⁰ ] / [ (1 + 0.003917)⁶⁰ – 1]

M = $460.23 (rounded to the nearest cent)

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NEED ASAP PLSS

The average weight per adult is 150 pounds, and the average weight per child is 40 pounds. Write an equation for the number of adults A and the number of children C the elevator can hold.

Answers

Let's assume that the elevator has a weight capacity of W pounds.

We can set up two equations to represent the number of adults (A) and the number of children (C) the elevator can hold:

Averaged weight per adult * Number of adults + Averaged weight per child * Number of children ≤ Weight capacity of the elevator

Using the given values, we can substitute:

150A + 40C ≤ W

This equation represents the weight limit of the elevator, where the sum of the weight of all adults and children inside the elevator cannot exceed W.

if a square has length of its side is 8cm then find length of its diagonal​

Answers

Answer:

8√2 cm

Step-by-step explanation:

If the length of one side of a square is 8 cm, then the length of the diagonal can be found using the Pythagorean theorem, which states that the square of the length of the diagonal of a right triangle is equal to the sum of the squares of the lengths of its two legs.

In a square, the diagonal is the hypotenuse of a right triangle whose legs are the two sides of the square. Since all sides of a square are equal, we can label the length of one side of the square as "a". Therefore, the length of the diagonal "d" can be found as:

d = √(a^2 + a^2) (using Pythagorean theorem)

Substituting the value of "a" as 8 cm, we get:

d = √(8^2 + 8^2)
d = √(64 + 64)
d = √128
d = 8√2 cm (rounded to two decimal places)

Therefore, the length of the diagonal of a square whose side length is 8 cm is approximately 11.31 cm (rounded to two decimal places).

6. You have a device that monitors the sound level of a conversation
located 1 meter away. The results are shown in the graph.
a. Describe the relationship of the sound level as
a function of time.

Answers

At first Sound level increases then for an instant it becomes constant then in decreases for a while then again becomes constant for an instant then again starts to increase .

What is sound level of a conversation?

A decibel (dB) is a unit used to measure sound. A motorbike engine operating is around 95 dB louder than a whisper (30 dB louder than typical conversation).

                          Your hearing may begin to deteriorate if exposed to noise levels exceeding 70 dB for an extended length of time. Your ears might suffer instant damage from loud noises exceeding 120 dB.

The relationship of sound level w.r.t time can be described as ,

a) At first Sound level increases then for an instant it becomes constant then in decreases for a while then again becomes constant for an instant then again starts to increase .

b) At both the instances the sound level is increasing as the slope of the tangent drawn to the curve at those points is positive but absolute value of sound level at instance (1) is clearly lower than the value of sound level at instance (3).

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On a coordinate plane, 2 lines are shown. Line A B has points (negative 4, negative 2) and (4, 4). Line C D has points (0, negative 3) and (4, 0).
Which statement best explains the relationship between lines AB and CD?

They are parallel because their slopes are equal.
They are parallel because their slopes are negative reciprocals.
They are not parallel because their slopes are not equal.
They are not parallel because their slopes are negative reciprocals.Line QR goes through points Q(0, 1) and R(2, 7). Which equation represents line QR?

y – 1 = 6x
y – 1 = 3x
y – 7 = 2x – 6
y – 7 = x – 2

Answers

Option A: Because their slopes are equivalent, they are parallel.

What is the slope relationship when two lines join to make a right angle?

Perpendicular lines are those that cross each other at a perfect 90-degree angle. The result of adding the slopes of two parallel plane lines is one. In other words, the slopes of perpendicular lines are the reciprocals of their opposites.

The following information is provided in the query:

Line AB:

(-4, -2), (4,4)

Line CD:

(0,-3), (4,0)

Formula to calculate slope =

x1,y1), (X2, y2)

Slope = m 2 – 31/X2X1

Slope of AB =3/4

Slope of CD =(0,-3)(4,0)

mCD = 3/4

Thus,

mAB = mCD

Thus, the two lines are parallel.

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Line AB has a slope of (4-(-2))/(4-(-4)) = 6/8 = 3/4, while line CD has a slope of (0-(-3))/(4-0) = 3/4. The slopes are equal, so the correct statement is: They are parallel because their slopes are equal.

What is coordinate plane?

A coordinate plane is a two-dimensional plane that is enclosed by the x-axis and y-axis, two perpendicular number lines.

It is used to graph linear equations and plot, locate, and find points.

For line QR that goes through points Q(0, 1) and R(2, 7), we can use the point-slope form of a line:

y - y1 = m(x - x1)

We can substitute the given values and simplify:

m = (7-1)/(2-0) = 3

y - 1 = 3(x - 0)

y - 1 = 3x

The equation that represents line QR is: y - 1 = 3x

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14. Type the correct answer in each box.

Answers

In C = -3(A - B), the element represented by c41 is given as follows: -15.In D = -3(A + B), the element represented by d41 is given as follows: -27.

How to realize the operations with matrices?

A41 represents the element at the line 4 and column 1, which is the same for B41.

When two matrices are added or subtract, we add or subtract the elements at the same position.

The elements are:

A41 = 7.B41 = 2.

Hence:

(A - B)41 = 7 - 2 = 5.(A + B)41 = 7 + 2 = 9.

When a matrix is multiplied by a constant, each element is multiplied by a constant, hence:

c41 = -3 x 5 = -15.d41 = -3 x 9 = -27.

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Lester says there are 4 ways to show 45 with tens and ones. Anya says there are 5 ways. Who is correct? Explain your answer.

Answers

We can list out some of the ways to show 45 with tens and ones and see how many there are:

4 tens and 5 ones (i.e., 40 + 5 = 45)

3 tens and 15 ones (i.e., 30 + 15 = 45)

2 tens and 25 ones (i.e., 20 + 25 = 45)

What is probability?

Probability is a measure of the likelihood of an event occurring.

To answer the question, we first need to understand what it means to "show 45 with tens and ones." In this context, we are likely referring to different ways of expressing the number 45 as a sum of tens and ones.

For example, one way to show 45 with tens and ones is to write it as 4 tens and 5 ones (i.e., 40 + 5 = 45). Another way is to write it as 3 tens and 15 ones (i.e., 30 + 15 = 45). We can continue this pattern to find other ways of expressing 45 as a sum of tens and ones.

Now, let's consider Lester's and Anya's claims. Lester says there are 4 ways to show 45 with tens and ones, while Anya says there are 5 ways. Without knowing the specific ways they are counting, it's difficult to say who is correct.

However, we can list out some of the ways to show 45 with tens and ones and see how many there are:

4 tens and 5 ones (i.e., 40 + 5 = 45)

3 tens and 15 ones (i.e., 30 + 15 = 45)

2 tens and 25 ones (i.e., 20 + 25 = 45)

1 ten and 35 ones (i.e., 10 + 35 = 45)

0 tens and 45 ones (i.e., 0 + 45 = 45)

We can see that there are indeed 5 ways to show 45 with tens and ones, so Anya is correct.

In general, it's important to be specific about what we mean when we ask questions or make claims. In this case, it's possible that Lester and Anya were counting different things, which led to their different answers.

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