What is the measure of EACH exterior angle for this regular octagon?

360
45
1080
135

Answer:

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Step-by-step explanation:

a)The claims of the Sun-American are not consistent with each other. The probability that four or more out of every 15 unemployment beneficiaries have jobs is 0.9095, but the expected number of employed beneficiaries exceeds 7, which is more than 4.

The cost of 1 cup of soup is, $5.28 and 1 side of rice is $7.92.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Three cups of soup and two sides of rice cost $15.85.

And, Six cups of soup and four sides of rice cost $31.70.

Let cost of 1 cup of soup = x

And, The cost of 1 side of rice = y

Here, Three cups of soup and two sides of rice cost $15.85.

Hence, We can formulate;

⇒ 3x + 2y = 15.85  .. (i)

And, Six cups of soup and four sides of rice cost $31.70.

Hence, We can formulate;

⇒ 6x + 4y = 31.70   .. (ii)

By equation (i) and (ii);

⇒ x = $5.28

⇒ y = $7.92

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Answer:

54 years

Step-by-step explanation:

If we want to know how to solve for the number of years a crow can live, we can use this equation:

(27 ÷ 3) + 45 =?

We can first solve for 27 divided by 3.

(27 ÷ 3) + 45 =?

9 + 45 =?

Now solve for 9 plus 45:

9 + 45 = 54

Therefore, if a woodpecker can live 27 years, a swallow 3 times less, and a crow 45 years longer than the swallow, we can say that a crow can live for 54 years.

The unit price of the gloves is $ 1.173.

To find the Unit price of the gloves find 1 dozen gloves by dividing the total price by the number of dozens. From that find the unit price by dividing a dozen gloves price by 12 as 1 dozen = 12.

Here we have

A contractor purchases 5 dozen pairs of padded work gloves for ​$70.40.

She incorrectly calculates the unit price as ​$13.44 per pair for the expense report.

Cost of 1 dozen pairs of padded work gloves = $70.40/5

Cost of 1 dozen pairs of padded work gloves = $ 14.08

Here 1 dozen = 12 gloves

Let 'x' be the Unit price

=> 60x = 70.40

=> x = 70.40/60

=> x = 1.173    

Therefore,

The unit price of the pair of gloves is $ 1.173.  

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All the correct values are,

a)⇒ f (0) = - 1

b)⇒ f (1) = 1

c)⇒ f (-1) = - 3

d)⇒ f (a) = 2a - 1

e)⇒ g (0) = - 4

f)⇒ g (-2) = 0

g)⇒ g (3) = 5

h)⇒ g (t) = t² - 4

i)⇒ f (a+5) = 2a + 9

What is Function?

A relation between a set of inputs having one output each is called a function.

Given that;

The function are,

⇒ f (x) = 2x - 1

⇒ g (x) = x² - 4

Now, We can find all the values by substituting as;

a) f (0)

⇒ f (x) = 2x - 1

Put x = 0;

⇒ f (0) = 2×0 - 1

⇒ f (0) = - 1

b) f (1)

⇒ f (x) = 2x - 1

Put x = 1;

⇒ f (1) = 2×1 - 1

⇒ f (1) = 1

c) f (-1)

⇒ f (x) = 2x - 1

Put x = -1;

⇒ f (-1) = 2×-1 - 1

⇒ f (-1) = - 2 - 1

⇒ f (-1) = - 3

d) f (a)

⇒ f (x) = 2x - 1

Put x = a;

⇒ f (a) = 2×a - 1

⇒ f (a) = 2a - 1

e) g (0)

⇒ g (x) = x² - 4

Put x = 0;

⇒ g (0) = 0² - 4

⇒ g (0) = - 4

f) g (-2)

⇒ g (x) = x² - 4

Put x = -2;

⇒ g (-2) = -2² - 4

⇒ g (-2) = 4 - 4

⇒ g (-2) = 0

g) g (3)

⇒ g (x) = x² - 4

Put x = 3;

⇒ g (3) = 3² - 4

⇒ g (3) = 5

h) g (t)

⇒ g (x) = x² - 4

Put x = t;

⇒ g (t) = t² - 4

i) f (a+5)

⇒ f (x) = 2x - 1

Put x = a + 5;

⇒ f (a+5) = 2×(a + 5) - 1

⇒ f (a+5) = 2a + 10 - 1

⇒ f (a+5) = 2a + 9

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The shape that represents the sample mean of the 81 students who are selected is; Approximately normal

When a distribution of data is defined as skewed, it means that it does not take the normal distribution's bell shape. Rather, it tends to distort with values either to the left or right of the center of the data.

Now, the Central Limit Theorem states specifically that the distribution of sample mean is normally distributed. It goes further to state that if the population values from which the sample originates is not normally distributed, the sample distribution will be normal. This effect will lead to  increases as sample size increases.

Thus, we can conclude that the shape is normally distributed

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Complete question is;

Suppose the mean GPA of School A students is 3.5 and the standard deviation is 0.7 it is well known that this distribution is left-skewed. A random sample of n = 81 students will be drawn. What is the shape of the sampling distribution of the random variable ¯X.  which represents the sample mean of the 81 students who are selected.?

- Left- skewed

- right-skewed

- approximately normal

- we cannot determine this from the information given.

The basis for Col A is linearly independent.

Two matrices are equal if and only if their shapes are same, and they've got the same elements for each corresponding row and column positions.

We are given that;

A = [3 7 3 3 6 4 0 -4 4 3 10 0] ~ [1 0 0 2 1 0 4 4 0 -2 -3 0]

Now,

To find a basis for Col A, we need to find the columns of A that correspond to the pivot columns of the echelon form. The pivot columns are the columns that have a leading 1 in a row. In this case, the pivot columns are the first, second, and fourth columns. Therefore, a basis for Col A is given by the vectors in those columns of A. We can write them as:

​3303​​,​76−410​​,​3440​​

These three vectors are linearly independent and span Col A, so they form a basis for Col A.

Therefore, by matrices the answer will be linearly independent.

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Here we are given that Gracie sold 15x + 4xy in her inventory and Mariella sold -15x +3x -2xy on weekends. We need to find combined inventory.

For that simplify add both the expressions as ,

15x + 4xy + (-15x) + 3x - 2xy

15x + 4xy - 15x + 3x - 2xy

Group like terms ,

(15x + 3x - 15x ) + (4xy - 2xy)

simplify,

3x + 2xy [ required answer]

And we are done!

Answer:

[tex]16203[/tex] days

Step-by-step explanation:

There are 60 seconds per minute, so 3600 sec/hour, and 86400 seconds per day, so the answer is about [tex]16203[/tex] days.

Answer:

the coordinate plane has a big example

Step-by-step explanation:

The value of the solution of (f.g)(t) is 2t^2-3t+7

A function is a type of rule that produces one output for a single input. Source of the image: Alex Federspiel. This is illustrated by the equation y=x2. Any input for x results in a single output for y. Considering that x is the input value, we would state that y is a function of x.

Types of Functions

Many – one function. Onto – function (Surjective Function) Into – function. Polynomial function

In the given equation,

f.g (t) is 2t^2-3t+7

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The percentage of salt (by mass) in this mixture is calculated to be

information from the problem

A mixture is made by combining 1.97 lb of salt

and 5.37 lb of water

The question is a percentage problem, percentage deals with a fraction hundred.

The percentage of the salt in the mixture is calculated by first finding the mass of the mixture

mass of the mixture = mass of salt used + mass of water that made the solution

mass of the mixture = 1.97 lb + 5.37 lb

mass of the mixture = 7.34 lb

The percentage of salt in the mixture

= 1.97 / 7.34 * 100

= 0.2684 * 100

= 26.8%

The percentage of salt in the mixture is 26.8%

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The length of hypotenuse = 5.2 centimeters.

The triangle that has at least one angle 90 degrees is called right angle triangle. The largest side length of a right triangle is termed as hypotenuse.

The Pythagorean theorem is applicable for right-angled triangle. The theorem stated that the square of hypotenuse is equal to the sum of the square of the remaining two side lengths. If a right-angled triangle has hypotenuse H and other two side length b and o respectively, then H² = b² + o².

Assume this right-angled triangle is named as ABC, AC is the hypotenuse and AB and BC is the other sides.

As AB = 2 cm and BC = 4.8 cm

then according to the Pythagorean theorem AC² = AB²+ BC²

                                                                     AC²= 2² + 4.8²

Hypotenuse AC = 5.2 centimeter.

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The value of y will be 90 more than its value on the graph, when x = 11. The solution has been obtained using the linear equations.

What is a linear equation?

The equation is a linear equation that has the greatest degree of one. In a linear equation with an exponent greater than one, this indicates that there are no variables. A straight line is produced on the graph by this equation.

From the given information, we need to initially form the equation

We are given different points

Let us take two points as (3,270) and (4,360)

Using slope-intercept form, we get the equation as

⇒y=90x+0

⇒y=90x

Now, putting x=11, we get

y = 990

Hence, the value of y will be 90 more than its value on the graph, when x = 11.

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After 4 year he will have maxed out his vacation days.

A geometric sequence is a set of integers that follows a pattern in which the following term is determined by multiplying the previous one by a factor known as the common ratio, or r.

Given:

After first year one day of paid vacation.

After second year 3 day of paid vacation.

So, the sequence is 1, 3, 9,.....

Common ratio, r = 3/1 = 3

maximum paid vacation days , [tex]a_n[/tex]= 27

Using [tex]a_n = a r^{n-1[/tex]

Then, 27 = 1 x [tex]r ^{ (n-1)[/tex]

27 = [tex]3^{n-1[/tex]

3³ =  [tex]3^{n-1[/tex]

now, comparing the base

n-1 = 3

n=4

Hence, after 4 year his vacation mxed out.

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Answer: To find out how many ounces of orange sherbet are needed for one batch of smoothie, you can use the proportion of orange sherbet to the total amount of smoothie.

24 oz of orange sherbet / 5/8 of smoothie = x oz of orange sherbet / 1 batch of smoothie

To solve for x, you can cross-multiply and simplify:

(24 oz of orange sherbet) * (1 batch of smoothie) = (5/8 of smoothie) * x oz of orange sherbet

24 * 1 = 5/8 * x

24 = 5/8 * x

By multiplying both sides by 8/5,

x = 24 * 8/5

x = 38.4 oz

So, 38.4 ounces of orange sherbet are needed for one batch of smoothie.

Step-by-step explanation:

We want to reduce x by 30%. Thus, the reduced price is:

x - 0.20x = 0.70x

More informally, if you take away 30%, you're left with 70%.

This question is similar to previous one so I used that answer launguage here also

541 + 279 = 820 is the number bond for the expression 540 + 280.

A number bond is a simple addition sum that has become so familiar to a child that they can recognise it and complete it almost immediately, with recall as automatic as that of an entry from a multiplication table in multiplication. Number bonds are used in the teaching of mathematics at the primary school level.

When given the other two numbers, a child who "knows" this number bond should be able to instantly fill in any one of these three numbers if it were missing, without having to "work it out." Number bonds are frequently taught in sets whose sums are common round numbers like 10 or 20.

We can find the number bond by simply adding 1 to first term and subtracting 1 from 2nd term.

540 + 280 = 820

(540 + 1) + (280 -1) = 820

541 + 279 = 820

Thus, 541 + 279 = 820 is the number bond for 540 + 280.

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The number of mosaics tiles in each side of the square  floor is 7 tiles.

Since a square has four equal sides and four equal angles, it is a regular quadrilateral. It may alternatively be explained as a rectangle with two neighboring sides that are of equal length.

A square can have many different characteristics. The following list includes some of a square's key characteristics.

The total number of mosaic tiles = 49

Let the lenght of each side of the floor be x

Therefore,

x² = 49

⇒ x = 7

The number of mosaics tiles in each side of the floor is 7 tiles.

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The percentage of students who chose " other " types of games, from the group of students was 25 %

The percentage of students who chose " other " types of games can be found by the formula:

= Number of students who chose " other " types of games / Total number of students x 100 %

Number of students who chose " other " types of games = 5 students

Total number of students = 20 students

The percentage is:

= 5 / 20 x 100 %

= 0. 25 x 100%

= 25 %

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The full question is:

In a survey, a group of 20 students were asked to name their favorite type of game. There were 5 students who chose “other” types of games.​ What is the percentage of those students who chose " other "?

Answer:

Step-by-step explanation:

Your first answer is correct. Good job

Your second answer is correct. good job

Your last answer is correct. good work

Therefore , the solution to the given problem of unitary method comes out to be  Hamster got 20 votes.

The unit method is a way of problem-solving where you first calculate the amount of a single item, then multiple that value to get the answer. Simply expression, a single system value is extracted from a specified multiple using the unit method. For illustration, 40 pens will set you back 400 rupees, or $1.01. The method used to accomplish this might be standardized. a solitary nation. anything has a distinctive component. (Mathematics, Algebra) Its adjoint and inverse are equivalent. (Linear Algebra, Mathematical Interpretation, Mathematics of Matrix or Operators).

Here,

4 votes are represented by each grid line. then, four votes per grid.

Fish received 8 votes.

There are three more grids for hamsters than for fish.

votes per grid times the number of grids

So,

the number of fish grids is 4.

2 grids are needed for fish.

There are 3 more grids for hamsters than for fish. As a result, 2 + 3 = 5 grids for the hamster.

Grids times votes per grid divide the total number of ballots.

As a result, there are 20 votes or hamsters (5 x 4).

Hamster has 20 votes as a result.

Therefore , the solution to the given problem of unitary method comes out to be  Hamster got 20 votes.

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The number 1 is called a unit. It has no prime factors and is neither prime nor composite. The number is  6 and 42.

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One is referred to as a unit. It is neither prime nor composite and lacks any prime factors. The digits are 6 and 42.

A number's factors, and more specifically its prime factorization, can be expressed as factor trees. There are factors for each branch of the tree. The branch comes to an end and the number is circled once the factor at the branch's end is a prime number, leaving only itself and one as potential factors.

A factor tree is a technique that enables us to determine the prime factors of a given integer. With this approach, we factorize the inputted number until no further factors can be discovered. Prime factorization is the list of prime factors or numbers that we would multiply together to arrive at the given number.

Therefore, the correct answer is option a) 6 and 42.

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236.5 ft depth will the pressure acting on the object.

The m is the slope, and b is the y-intercept, therefore f(x) = mx + b.

You are given the value of m = 4.44 (lb/in2) for every 10 feet of descent; however, you need f(x) to be a function of the depth in inches, thus you must determine what m is for every inch of fall.

120 inches are equal to 10 feet multiplied by (12 inches per foot).

Every 120 inches of fall, then, gives rise to m = 4.44.

m = 4.44 / 120 = 0.037 for each inch of fall

Consequently, f(x) = 0.037x + b

The fact that f(0) = 15 and b = 15 can be used to find b.

f(x) = 0.037x + 15 is the equation as a result.

Set f(x) = 120 and work out x to obtain the pressure at that point.

120 = 0.037x + 15 0.037x = 105 x, or 105 / 0.037 = 2837.8 inches, or roughly 236.5 ft.

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Answer:

Step-by-step explanation:

-2y + 9 = -1

Adding 2y to both sides:

9 = 2y - 1

Adding 1 to both sides:

10 = 2y

Dividing both sides by 2:

y = 5

Therefore, the value of y that makes the equation true is y = 5

The statement can be represented symbolically as: (P) ∨ (Q) → (S)

How to represent a statement in symbolic form?

Representing a statement in symbolic form involves using logical symbols and logical operators to create a logical expression that captures the meaning of the statement. Here are some common symbols and operators used in symbolic logic:

To put the statement "Michael does not have the time or money to complete the project" into symbolic form, we first need to identify the key phrases and declare them as symbols. Here are a few possible ways to do this:

(P) Michael does not have the time

(Q) Michael does not have the money

(R) Michael does not have the time or money

(S) Michael can not complete the project

We can put them in different ways, depending on the statement you want to make.

Then the statement can be represented symbolically as:

(P) ∨ (Q) → (S)

This means Michael does not have the time or the money or both, which leads him to not be able to complete the project.

Alternatively, we can use the following representation

(R) → (S)

This means Michael does not have the time or the money or both, which leads him to not be able to complete the project.

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The slope of the given data is 25.

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

Jon paid $200 for 8 classes at gold dawn yoga studio.

the cost, y, is proportional to the number of classes purchased, x

The slope will be cost of each class

200/8=25

So the equation will be y=25x

25 is the slope.

Hence, the slope of the given data is 25.

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A data set's attributes are enumerated through descriptive statistics. You can use inferential statistics to test a hypothesis or determine whether your data can be applied to a larger population.

Two sets of pupils with scores from various classes are highlighted, Using descriptive statistics, determine the mode of the following data: Using descriptive and inferential statistics, determine the z score for the given data.

Measurements of variability and measures of central tendency make up descriptive statistics (spread). Mean, median, and mode are examples of central tendency metrics. Variability measures include standard deviation, variance, minimum and maximum variables, kurtosis, and skewness.

correlation analysis, A set of independent variables and a dependent variable, such as Hypothesis Tests, are related in regression models. To compare entire populations or evaluate the correlations between variables, hypothesis testing is utilised along with samples and confidence intervals.

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The complete question is " Identify the type of data​ (qualitative/quantitative) and the level of measurement for the

expenses of respondents in a survey?"

When performing a hypothesis test on two dependent samples, the variable of interest is

d. the differences that exist between the matched-pair data.

In a hypothesis test on dependent samples, the variable of interest is the difference between the two samples. The test compares the means of the two samples and checks whether the difference is significant or not. The sample data are matched-pair, meaning that each data point in one sample corresponds to a specific data point in the other sample.

The variable of interest is the difference between the two matched data points, this difference is also known as the dependent variable.

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