i need help with my Math homework please​

Answer:

Step-by-step explanation:

To find the missing numbers, we must simplify the second half of the original proportion/fraction. Let's use number 2 as an example. First, we need to find out which number we are using to simplify. To do this, we divide 21 by 7. This gives us 3. Now, we divide 12 by 3 to get y, or 4. This strategy can be applied to all the problems.

As per the given correlation, the appropriate null and alternative hypothesis for calculating number of goggles is

H0 : No linear relation

H1 : there is a relation

What is meant by correlation?

In math, correlation is referred as a statistical measure that expresses the extent to which two variables are linearly related (meaning they change together at a constant rate).

And it is a common tool for describing simple relationships without making a statement about cause and effect.

Based on the given question, a group of scientist randomly selected 20 piknits from the sea-floor and measured their respective weights in grams.

And we also know that, they wanted to know if the weight of the piknits can be used to predict the number of gogles.

Here from the given information, the null hypothesis : H0 : There is no linear relationship between the weight of piknits and the number of goggles

And the Alternative hypothesis : Ha: There is a linear relationship between the weight of piknits and the number of gogles

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Answer:

12

Step-by-step explanation:

Using the properties of a 45-45-90 triangle, [tex]x=\sqrt{2}(6\sqrt{2})=12[/tex].

The relationship between lines a and c, where both line a and c are perpendicular to line b is that line a and c are parallel, a ║ c

Please find attached an example drawing of the lines a and c created with MS Excel.

Parallel lines are coplanar lines that have a fixed distance between them and do not meet.

The specified information are;

the lines that are on the same plane = a, b, and c

The relationship between line a and b = a is perpendicular to b (a ⊥ b)

The relationship between line b and c = b is perpendicular to c (b ⊥ c)

The slope of a line perpendicular to another line with slope, m, is the negative inverse of m or -1/m

(The slope of parallel lines are the same)

Let the slope of line a = m, therefore;

The slope of the line b  which is perpendicular to a is -1/m

Therefore, the relationship between the lines b and c which are perpendicular (b ⊥ c) is as follows;

The slope of the line b = -1/m, therefore;

The slope of the line c, perpendicular to b is the negative inverse of the slope  of b

The slope of the line c = -1/(-1/m)) = 1/(1/m) = m

The slope of the line c = m

Therefore, the slope of the line c (m) is the same as the slope of the line a (m), which indicates that the lines a and c are parallel.

a ║ c.

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Answer:

Could you please explain your question with proper English?

Step-by-step explanation:

Thank you.

The word "to" comes before infinitives. Because they are unconstrained by time, like the idea of infinity, these verbs are known as infinitives.

In the given question, we have to explain why an infinitive called an infinitive.

The verb form known as an infinitive can be employed as a noun, adjective, or adverb. When describing acts without actually performing them, they are typically created by adding the term to before the base verb.

The word "to" comes before infinitives. Because they are unconstrained by time, like the idea of infinity, these verbs are known as infinitives. The conjugated forms of the verb, sometimes referred to as the finite forms of the verb, are derived from the infinitive.

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Option-D is correct that is the larger the difference, the larger the value of chi-square, and the greater the probability of rejecting the null hypothesis.

Given that,

We have to find how will the results of a chi-square test be affected if there is a significant discrepancy between the expected and observed frequencies.

We know that,

If the observed values and expected values have a large difference then the chi-square value will be in large quantity that provides evidence against the null hypothesis and explain the huge difference between the sample data and null hypothesis.

The Chi-square statistic is,

X²=Σ i,j=0 to n (O i, j-E i,j)²/E i,j

Where,

O is the observed frequency value.

E is the Expected frequency value.

Therefore, Option-D is correct that is the larger the difference, the larger the value of chi-square, and the greater the probability of rejecting the null hypothesis.

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The equation of a line that is perpendicular to 2y 3x 10 and passes through (- 6 1) is -3y + 2x -1 with slope.

1. Start by finding the slope of the given line by taking the coefficient of x and dividing it by the coefficient of y.

2. To find the slope of the line perpendicular to the given line, we need to find the negative reciprocal of the slope of the given line.

Slope of the perpendicular line: m = -2/3

3. We know that the equation of a line in slope intercept form is: y = mx + b, where m is the slope and b is the y-intercept.

4. So, the equation of the line perpendicular to 2y 3x 10 and passes through (-6 1) is:

y = -2/3x + b

5. To find the y-intercept, substitute the given point (-6 1) in the equation and solve for b.

-1 = -2/3(-6) + b

b = 1

6. Therefore, the equation of a line that is perpendicular to 2y 3x 10 and passes through (- 6 1) is -3y + 2x -1

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Bonnie bought more jolly because the weight of her 2 bags is more than that of Linsey.

The pound or pound-mass is a unit of mass used in British imperial and United States customary systems of measurement.

If each Linsey's bag of jolly weighs 18 ounces then 3 bags would weigh 18 x 3 = 54 ounces

If each Bonnie's bag of jolly weighs 2 pounds then the 2 bags would weigh 2 x 2 = 4 pounds.

converting 4 pounds to ounces at the rate of 16 ounces per pound we have 16 x 4 = 64 ounces

So Bonnie bought more jolly than Linsey as the weight of the bags of Bonnie is heavier than that of Linsey.

In conclusion Bonnie bought more than Linsey as the weight of bags of Bonnie outweighs Linsey's

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The system of inequalities that are graphed are:

y < (1/2)x + 4

y > 2x - 1

It shows a relationship between two numbers or two expressions.

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal = ≤

Greater than and equal = ≥

We have,

Two coordinates from the graph of the green line.

(0, 4) and (2, 5)

The equation of the line.

y = mx + c

m = (5 - 4) / (2 - 0) = 1/2

m= 1/2

(0, 4) = (x, y)

4 = (1/2) x 0 + c

c = 4

y = (1/2)x + 4

Two coordinates from the graph of the Blue line.

(1, 1) and (2, 3).

The equation of the line.

y = mx + c

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

m = 2

(1, 1) = (x, y)

1 = 2 + c

c = 1 - 2

c = -1

y = 2x - 1

Now,

The system of  linear inequalities that are graphed on the given graph are:

y < (1/2)x + 4

y > 2x - 1

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No, there is not a significant difference between these two values at the 95% confidence level.

The difference between the mean and literature values is 0.011 g/ml, which is less than the standard error of the mean (0.00387 g/ml). Therefore, the difference is not statistically significant. To reach a 95% confidence level, the difference must be greater than two standard errors of the mean. This would mean that the difference must be greater than 0.00773 g/ml, which it is not. Therefore, there is no significant difference between these two values at the 95% confidence level.

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What is externality?

A cost or benefit connected to the creation or consumption of a good or service is known as an externality. Externalities have an impact on parties that are not involved in a product's production or consumption.

1) Positive externality says:

An advantage of creating or using a product is known as a positive externality. For instance, because people learn and develop skills for careers and their lives, education is a beneficial externality of school.

The example follows all the rules of positive externality, so for that it is an positive externality.

2) Through market mechanisms, governmental regulation, self-governing organizations, or a combination of these institutions, externalities can be internalized. We advise taking the institutional approach since it will cost the company the least overall (the sum of technology, management, and transaction costs).

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Answer: The answer is A: Brazil

explanation: Brazil already gets imports from Argentina IRL

The expected area of a random square which has a side length that is uniform random variable is 1/3.

A family of symmetric probability distributions includes the continuous uniform distribution and rectangular distribution. The distribution describes an experiment with a random result that falls within predetermined bounds.

 The parameters, a and b, which represent the minimum and maximum values, define the bounds. The interval may be closed (for example, [a, b]) or open (for example, (a, b)). common abbreviation for the distribution is U (a, b), where U stands for uniform distribution. 

The length of the interval is defined by the difference between the bounds; intervals with the same length on the distribution's support are equally likely.

Let, side of the square = X

we know that the area of a square = side × side

                                                          =  X  ×  X

                                                          =  X^{2}

now, by using Continuous uniform distribution,

E[ X^{2} ] =  [tex]\int\limits^1_0 X^{2} \, dx[/tex]    

                =  [tex][\frac{1^{3} }{3} - \frac{0^{3} }{3} ][/tex]

                =  [tex]\frac{1}{3}[/tex]

Hence , the expected area of the square is [tex]\frac{1}{3}[/tex].

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Answer: I pretty sure its 9 feet

Step-by-step explanation:

Sorry if Im wrong

For the Polynomials to be closed under closure property for the operation of addition if the addition operation produces another polynomial.

Closure property states that when a set of numbers is closed beneath any arithmetic operation such as subtraction, addition, division, and multiplication and is performed on any two numbers of the set with the reply being another number from the set itself. When including polynomials, the factors and their exponents don't alter. As it were their coefficients will possibly alter. This ensures that the sum has factors and exponents which are as of now classified as having a place in polynomials. Polynomials are closed beneath the addition.

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It is discovered that the (1) graph represents a function whose inverse is also a function using the concept of an inverse function.

The set of ordered pairs is the graph of a function f in mathematics, where these pairs are Cartesian coordinates of points in two-dimensional space and so form a subset of this plane in the typical situation when x and f(x) are real integers.

To develop a graph is to make a diagram that depicts the relationship between two or more objects.

Make a sequence of bars on graph paper as an example of a graph.

Since there is only one value of x in the first graph for any value of y, the inverse is also a function, making this the right answer.

The inverse is not a function in the second graph since, for instance, y = 0 when x = -1 and when x = 1.

For instance, in the third graph, the inverse is not a function because y = -3 when x = 0 and x = 2.

For instance, in the fourth graph, y = 1 for two different values of x, proving that the inverse is not a function.

Therefore, it is discovered that the (1) graph represents a function whose inverse is also a function using the concept of an inverse function.

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Correct question:

Which graph shows a function whose inverse is also a function?

the answer of the question is -The current temperature and wind speed in Philadelphia

Weather describes the condition of the atmosphere, including how hot or cold, wet or dry, quiet or stormy, clear or cloudy, and so forth. The troposphere, the section of the planet's atmosphere immediately below the stratosphere, is where the majority of weather events on Earth take place.

Contrarily, climate refers to the weather patterns that can be determined by using data collected in a certain area over an extended period of time to produce adequate averages.

There are several weather conditions, such as cloudy, sunny, wet, windy, and snowy. Air masses are among the most important variables that impact the weather.

answer of the question is -The current temperature and wind speed in Philadelphia

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Answer: c = -14 over 3 (c = -14/3)

Step-by-step explanation:

1. Distribute: 5c + 4 = 2(c - 5) --> 5c + 4 = 2c - 10

2. Subtract 4 From Both Sides: 5c + 4 = 2c - 10 --> 5c + 4 - 4 = 2c - 10 - 4

3. Simplify: 5c = 2c - 14

4. Subtract 2c From both sides: 5c = 2c - 14 --> 5c - 2c = 2c - 14 - 2c

5. Simplify: 3c = 14

6. Divide Both Sides By The Same Factor: 3c divided by 3 = -14 divided by 3

7. Simplify: c = -14 over 3

8 feets will the bottom of the ladder slip.

What is pythagora's theorem?

In ΔABC

AC² = AB² - BC² (∴Pythagoras theorem)

AC = √25² - 7²

AC = √625 - 49

AC = √576

AC = 24 feet

As after sliping length of ladder remains same ⇒ DE = 25 feet and feet 4 feet.

Let say x be the length of how much the ladder slips.

New height = DC = AC - AD = 20 feet

EC = (x + 7 ) feet

In ΔDEC,

DE² = DC² + EC²  (∴Pythagoras theorem)

25² = 20² + (x + 7)²

(x + 7)² = 225

x + 7 = 15

(∵ x+7)>0, We can't take negative value)

x = 8 feet

Hence, 8 feets will the bottom of the ladder slip.

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The equation of the line with slope [tex]1[/tex] and y-intercept is [tex]7[/tex] i.e. [tex]y=x+7[/tex]

The slope-intercept form is

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

Here, m is the slope and c is the y-intercept

y=x+7

The equation of the line is [tex]y=x+7\\[/tex]

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A. The equations for the amounts of money Lyle and Shaun have in their accounts are represented as:

f(x) = 20x + 100

g(x) = 10x + 500

B. When f(x) = g(x), x = 40.

A linear equation can be written in slope-intercept form y = mx + b. Here, the value of m is the unit rate or slope, while the value of b is its y-intercept or initial value.

Part A:

Equation for Lyle:

y-intercept / initial value (b) = $100

Slope / unit rate (m) = $20

To write the equation, substitute m = 20 and b = 100 into f(x) = mx + b:

f(x) = 20x + 100.

Equation for Lyle:

y-intercept / initial value (b) = $500

Slope / unit rate (m) = $10

To write the equation, substitute m = 10 and b = 500 into g(x) = mx + b:

g(x) = 10x + 500.

Part B: To solve the system, we would do the following:

20x + 100 = 10x + 500

20x - 10x = -100 + 500

10x = 400

x = 400/10

x = 40

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A word is put between to and the verb while splitting an  infinitive. In terms of grammar, splitting an infinitive is acceptable.

In other cases, it might even be more logical to do so. An infinitive is a verb's to form, such as "to go" or "to be."

When it is said that infinitives should never be split, it means an adverb should never come before the verb in the sentence "to confidently proceed."

As we know  split infinitive is one in which the word "to" and the verb in the base (infinitive) form of the verb are separated by one or more words.

Adverbs are the words that split infinitives the most frequently.

Example,

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To prove that the triangles are similar by the SSS similarity theorem, we use MN corresponds to QR, also ∠S ≅ ∠O

Two triangles are comparable if the measurements of their corresponding sides are proportionate. Additionally, if the measurements of two sides in one triangle are proportional to the measurements of the corresponding sides in another triangle and the included angles are congruent, the triangles are similar.

Similar figures

Two figures are said to be similar if they have the same shape and the ratio of their corresponding sides is in the same proportion.

From the image, MN corresponds to QR, also ∠S ≅ ∠O

To prove that the triangles are similar by the SSS similarity theorem, we use MN corresponds to QR, also ∠S ≅ ∠O

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The table that shows a function that is decreasing only over the interval (–1, ∞) is circled on the image given at the end of the answer.

The behavior of a function is classified as either increasing, decreasing or constant, as follows:

In this problem, we want a function that is decreasing only over the interval (–1, ∞), hence:

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120120 Different number of arrangements can be made.

7 identical stuffed dogs

4 identical stuffed cats

3 identical stuffed teddy bears

Total number of objects a toy store managers want

to display = 14.

We know formula to arrange n objects in which p are identical:

There are n!/p! ways to arrange n objects in a row, and p of those ways are exactly the same.

Similarly for this problem we can say:

Different number of arrangements possible.

Here in this question value of n =14 total number of objects.

Total number of arrangements possible for 14 objects is 14! but some objects are duplicate that may be counted more than ones so we have to divide them.

number of arrangements = 14!/ (7!*4!*3!).

by solving this we get

number of arrangements = 120120.

So we can say 120120 Different number of arrangements can be made.

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The equation that Amy can use to find how many games of Balloon Bouncer, g, she played is; g = (35 - 2a)/3

We are told that Amy used her first 2 tokens at Glimmer Arcade to play a game of Roll-and-Score.

Balloon Bouncer costs 3 tokens per game, and Amy started with a bucket of 35 game tokens.

Thus, the expression for the number of balloon bouncer games played at the arcade is :

2a + 3g = 35

Let :

Glimmer arcade, a = $2 per game

Balloon bouncer, g = $3 per game

Total game tokens = 35

Her spending could be represented using the expression :

2a + 3g = 35  

g = number of balloon bouncer games played

Thus, making g the subject of the formula we have;

g = (35 - 2a)/3

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Answer:

3g + 2 = 35 is the answer.

She played 11 games.

Step-by-step explanation:

By Polynomial Addition, 1st,2nd equations goes to 3rd box; 3rd,4th equations goes to 2nd box; 5th,6th equations goes to 1st box.

Steps to solve polynomial addition:

1) Take the equation.

2) Arrange the polynomial such that common terms are placed at one place.

3) Group the like terms, Like terms are terms which has equal degree and equal  variables.

4) Simplify by combining like terms.

5) Solve the equation

1st equation:

[tex]x - 3 + 2x + 3 + 2x\\= 5x + 0\\= 5x[/tex]

goes to 3rd box

2nd equation:

[tex]6x - 9 - 5x +4 - x+5x+5\\= 5x +0\\=5x[/tex]

goes to 3rd box

3rd equation:

[tex]3x+5-2x-5x+9+8x\\= 4x + 5+9\\=4x + 14[/tex]

goes to 2nd box

4th equation:

[tex]4x+x-11-5x+25+4x\\=4x + 14\\[/tex]

goes to 2nd box

5th equation:

[tex]x+8+4x-3x-4\\=2x+4[/tex]

goes to 1st box

6th equation:

[tex]5+9x-7-4x-3x+6\\=2x+4\\[/tex]

goes to 1st box

By Polynomial Addition, 1st,2nd equations goes to 3rd box; 3rd,4th equations goes to 2nd box; 5th,6th equations goes to 1st box.

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Answer:

0

Step-by-step explanation:

The formula to find slope is:

plug in both set of parenthesis into the equation

m = 5-5 / -1 - 2

Solve numerator (top) and denominator (bottom)

m = 0 / -3

Solve, 0 divided by -3

=0

Two ways in which the combination can be represented = 720 , 46656

A combination in mathematics is a choice made from a group of separate elements where the order of the selection is irrelevant.

According to the given information

Whether you can repeat numbers or not will determine which of two possibilities

First Way

If you cannot repeat the digits  

Then

You might perform 6 ! or 6x5x4x3x2x1 = 720

This is so that the initial digit, which can have up to six numbers, can never be repeated. As a result, one digit cannot be repeated, therefore

6 - 1 = 5. The third digit is the same, but since you've already used two of the six digits, you can only have 4.

The alternative

If you're able to repeat :

either [tex]6^{6}[/tex] or 6x6x6x6x6

= 46,656

This is due to the fact that each digit has six possible values.

Two ways in which the combination can be represented = 720 , 46656

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