PLEASE SOMEBODY HELPPPPP OH PLSSSS I BEGG OF YOUUUUUUUUUUUU REWARD BRAINLIEST

In the parallelogram, the coordinates form of the vectors WX, XY, WZ, OZ are (18,3), (24, 21), (2x, y)  and (0,0).

The term coordinate in math is known as the set of values that represents the exact position on the coordinate plane

Here we know that WXYZ is a parallelogram and the position vectors of W, X and Y are (2,1), (6,3) and (4,7) respectively.

Then the value of the coordinate vectors are calculated as,

=> WX = (2,1) x (6,3) = (18, 3)

And the value of XY is calculated as,

=> XY = (6,3) x (4,7) = (24, 21)

And we know that the value of Z is (x, y), then the vector is calculated as,

=> WZ = (2,1) x (x, y) = (2x, y)

Finally the value of OZ is calculated as,

=> OZ =(0,0)  x (x , y) = (0, 0)

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~Shoto Todoroki here~

Answer:

The answer is =−7

Step-by-step explanation:

This is a composition of functions

f(x)=x+8

g(x)=x2−6x−7

f(g(x))=f(x2−6x−7)=x2−6x−7+8=x2−6x+1

Therefore,

f(g(2))=22−6⋅2+1=4−12+1=

−7

hope this helps :D

The result of simplifying the number (4¹)⁵ using the exponent rules is 1024

To solve this exercise we have to resolve algebraic operations following the exponent rules.

Note the power of a power rule that indicates that: the exponent result will be the multiplication of these exponents, we have:

(4¹)⁵ =

4 ⁽¹*⁵⁾ =

4⁵ =

4*4*4*4*4 =

1024

In mathematics an exponent is the number of time that a number, called (base) is multiplied by itself. It is also called, power or index.

Example: 3² = 3*3 = 9

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The addition of the polynomial \(x^{3}+3xy-2xy^{2} +y^{3}\) with \(2x^{3}-5x^{2} y-3xy^{2}-2y^{3}\) is  \(3x^{3}+3xy-5x^{2} y-5xy^{2}-y^{3}\).

What is a polynomial?

⇒ A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.

⇒ In the addition of polynomials, the like terms are added while in subtraction, the like terms are subtracted.

Calculation;

We have been given two polynomial which we have to add   \(x^{3}+3xy-2xy^{2} +y^{3}\) and \(2x^{3}-5x^{2} y-3xy^{2}-2y^{3}\)

The sign after addition or subtraction will always be of the variable having more value.

\((x^{3}+3xy-2xy^{2} +y^{3} )+(2x^{3}-5x^{2} y-3xy^{2}-2y^{3})\)

On adding like terms with each other

⇒ \((x^{3} +2x^{3})+ 3xy-5x^{2} y-(2xy^{2}+3xy^{2})+(y^{3}-2x^{3})\)

⇒ \(3x^{3}+3xy-5x^{2} y-5xy^{2}-y^{3}\)

Hence the addition of the polynomial\(x^{3}+3xy-2xy^{2} +y^{3}\) and \(2x^{3}-5x^{2} y-3xy^{2}-2y^{3}\) is \(3x^{3}+3xy-5x^{2} y-5xy^{2}-y^{3}\).

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Answer:  The values of the variable can only be placed into categories.

Step-by-step explanation:

Type list of beverage sold is a categorical variable because the values of the variable can only be placed into categories.

A categorical variable, also referred to as nominal variable. is a variable which consist of two or more categories, this usually does not involve special ordering of the categories.

Answer:

A. No, because not all of the pairs represent the same ratio

Answer:

m = 4

Step-by-step explanation:

The slope for the linear points is given by :

\(m=\dfrac{y_2-y_1}{x_2-x_1}\)

We have,

y₂ = 4, y₁ = 0, x₂ = 2, x₁ = 1

Putting all the values,

\(m=\dfrac{4-0}{2-1}\\\\\implies m=\dfrac{4}{1}\\\\m=4\)

So, the slope of the line is equal to 4.

I think you tried copy pasting the thing in here. usually written equations on tests or whatever don't copy paste well

Answer: \(\$(23.65+1.343s)\)

Step-by-step explanation:

Given

Speaker set to cost $22

Each song costs $1.25

Sales tax is 7.5%

Suppose, one purchase s no of songs

The cost of s songs is $1.25s

The combined cost of speakers and song is

\(C=22+1.25s\)

At this cost, a 7.5% sales tax is applied to the given cost

\(\Rightarrow [22+1.25s]\times 0.075\)

Total cost after sales tax is

\(\Rightarrow C_t=22+1.25s+[22+1.25s]0.075\\\\\Rightarrow C_t=[22+1.25s](1+0.075)=[22+1.25s]\times 1.075\\\\\Rightarrow C_t=\$(23.65+1.343s)\)

Answer:

Is A or B

Step-by-step explanation:

Its not proportional because of the +30

Answer:

D I believe

Step-by-step explanation:

I think it is D

Answer:

7

Step-by-step explanation:

Let us say that \(y_{1}\)= 5.5, \(x_{1}\)= 11, and \(y_{2}\) = 3.5.

\(\frac{y_{2}}{y_{1}} =\frac{x_{2}}{x_{1}}\)

\(\frac{3.5}{5.5} =\frac{x_{2}}{11}\)

\(\frac{7}{11} =\frac{x_{2}}{11}\)

\(x_{2} =7\)

I hope this is correct and helps you!

The best answer regarding the effects of carbon monoxide is option c, CO results in less oxygen loading hemoglobin but unloading is not changed.

Carbon monoxide binds up more tightly to the hemoglobin as compared to the oxygen molecules. This reduces the oxygen-carrying capacity of the blood and results in less oxygen loading onto hemoglobin.

However, once oxygen is already bound to hemoglobin, CO does not significantly affect its release or unloading. Therefore, option c is the most accurate statement among the given choices.

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Step-by-step explanation:

hope you can understand

For a normal distribution, the probability of a value being between a positive z-value and its population mean is indeed the same as that of a value being between a negative z-value and its population mean.

This is due to the symmetric nature of the normal distribution curve, where probabilities are mirrored around the mean.

The normal distribution is characterized by its bell-shaped curve, which is symmetric around the mean. The mean is also the midpoint of the curve, and the curve approaches but never touches the horizontal axis. The standard deviation of the distribution controls the spread of the curve.

In a normal distribution, the probability of a value being between a positive z-value and its population mean is indeed the same as that of a value being between a negative z-value and its population mean.

This is due to the symmetric nature of the normal distribution curve, where probabilities are mirrored around the mean.

This means that if we have a normal distribution with a mean of μ and a standard deviation of σ, the probability of a value falling between μ+zσ and μ is the same as the probability of a value falling between μ-zσ and μ.

This property of the normal distribution makes it easy to compute probabilities for any range of values, by transforming them into standard units using the z-score formula.

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AnswerAnswer:1/11

Step-by-step explanation:

Confounding may invalidate the conclusions of the study as it can cause a bias that can make the effect of the explanatory variable look larger or smaller than it actually is.

This means that the relationship between alcohol drinking status and incidence of lung cancer is influenced by  After the classification of smokers and non-smokers, a separate analysis can be done to find the effect of alcohol drinking on lung cancer in both groups.

Explanatory and Confounding Variable in the study :In the given study, the explanatory variable is obesity and the response variable is coronary disease. Whereas, the confounding variable is hypertension and diabetes because these diseases are associated with obesity. The confounding variable can invalidate the conclusions of the study as it can affect the relationship between obesity and coronary disease .To eliminate the effect of the confounding variable, the study can be changed in the following ways.

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Answer:

1/24 = 0.041666666...

Step-by-step explanation:

when rolling 4 dice, we have

6 × 6 × 6 × 6 = 6⁴ = 1296

different possible outcomes (each die has 6 possible outcomes).

so, the probability of any particular pattern is then

1/1296.

we need to find how many patterns there are to represent the desired result of 2 identical odd numbers combined with 2 identical even numbers.

there are on every die 3 out of 6 options for an odd number, and the other 3 out of 6 options for an even number.

when we roll 2 dice, the patterns for 2 identical odd numbers are

1 1

3 3

5 5

so, 3 out of the possible 36.

similar for 2 identical even numbers.

2 2

4 4

6 6

3 out of the possible 36.

so, combining this together for a roll of 4 dice, we get then

3 × 3 out of the possible 36 × 36

9 out of the possible 1296 patterns.

that means the probability (desired over total possible cases) for a specific combination of 2-and-2 dice is

9/1296 = 1/144 = 0.006944444...

but there are 4! / (2! × 2!) = 6 possibilities (pick 2 out of 4, where the sequence of the picked ones does not matter) to pick 2 dice out of 4 and to show the same pattern across the 4 dice, as e.g. for the basic pattern 1 1 2 2 we can have

1 1 2 2

1 2 1 2

1 2 2 1

2 1 2 1

2 1 1 2

2 2 1 1

all of the 9 patterns have these 6 combination possibilities.

so, we need to multiply the individual pattern probability by 6 for the total probability

1/144 × 6 = 6/144 = 1/24 = 0.041666666...

He needed to make a total of 1980 + 630 = $2610

$2610 / 45 = 58

Answer: 58

The test statistic is given as z = (0.64 - 0.727) / sqrt{ [ (0.64)(0.36) / 100 ] + [ (0.727)(0.273) / 110 ] }

= -1.81 (approx.)

The parameters and hypotheses for the problem are stated below: Let p1 be the proportion of on-time flights for Nite-flite Airlines.

Let p2 be the proportion of on-time flights for Waxwing Airlines.

The null hypothesis and the alternative hypothesis are given as follows: Null hypothesis: H0: p1 = p2Alternative hypothesis: Ha: p1 < p2 (left-tailed test)Check the three conditions for both the populations

:Since both samples are smaller than 10% of their respective populations, we assume that both populations are normal.

The samples are independent. Type of test: Since both samples are large, we can use a z-test for two proportions. P-value: The test statistic for a two-sample proportion z-test is given as

z = (p1 - p2) / sqrt{ p(1 - p) [ (1/n1) + (1/n2) ] }

where p = (x1 + x2) / (n1 + n2)

The p-value for the test is P(Z < -1.81)

= 0.035 < 0.01

Therefore, we can reject the null hypothesis at the 0.01 level of significance. Conclusion:

There is sufficient evidence to suggest that Waxwing Airlines has a larger proportion of on-time flights than Nite -flite Airlines.

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For det(A-'B), we can use the fact that det(AB) = det(A) det(B) and det(A') = det(A) for any matrices A and B. Thus,

det(A-'B) = det(A) det((A-'B)A^-1)
         = det(A) det(A'A^-1 - B A^-1)
         = det(A) det(A^-1) det(A'A - B)
         = det(A)^2 det(AA' - B)
         = (det(A))^2 det(BA-'A'B)

where we used the fact that det(A^-1) = 1/det(A) and det(A'A - B) = det(A(A' - A^-1B)) = det(A) det(A' - A^-1B) = det(A) det(A^-1(A'A - B)) = det(A) det(A^-1) det(A'A - B).

Therefore, det(2 APBT A-'B) = -64 det(P) det(A-'B) det(B) = -64 det(P) det(A)^2 det(BA-'A'B).

Without more information about P, we cannot determine the value of det(2 APBT A-'B).
Given A and B are 3x3 matrices, with det(A) = 4 and det(B) = -3. You want to find the determinant of the product 2APBT A^(-1)B, where A^(-1) is the inverse of matrix A.

Using the properties of determinants, we can find the determinant of this product as follows:

det(2APBT A^(-1)B) = 2^3 * det(A) * det(P) * det(B) * det(T) * det(A^(-1)) * det(B)
= 8 * 4 * det(P) * (-3) * det(T) * (1/4) * (-3)

Since det(A^(-1)) = 1/det(A) and the determinants of scalar multiples (2) for a 3x3 matrix are raised to the power of 3, the equation becomes:

= -72 * det(P) * det(T)

To find the final answer, you would need the values for det(P) and det(T).To find det(2 APBT A-'B), we can use the following formula:

det(kA) = k^n det(A)

where k is a scalar and A is an n x n matrix. We can apply this formula repeatedly to simplify the determinant:

det(2 APBT A-'B) = 2^3 det(APBT A-'B)
                 = 2^3 det(A) det(PBT) det(A-'B)
                 = 2^3 (4) (-1)^3 det(P) det(B) det(A-'B)
                 = -64 det(P) det(A-'B) det(B)

where we used the fact that det(PBT) = det(P) and det(A-'B) = (-1)^3 det(BA-'A'B) due to the cyclic property of the determinant. Now we just need to find det(P) and det(A-'B).

Since P is a permutation matrix, it has either det(P) = 1 if the number of row swaps needed to reach it from the identity matrix is even, or det(P) = -1 if the number of row swaps is odd. Since we don't have any information about P, we cannot determine its determinant.

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If Mr. Rankin put $120 on the table, the change he would receive $8.82

What is Percentage ?

Percentage can be defined as the product ratio of given value, total value and hundred.

Mr. Rankin took his family out to dinner last night and their subtotal was $88.24. The sales tax was 5% and he left a 20% tip after the tax was added.

If Mr. Rankin put $120 on the table, the change he would receive

tax = 5/100 * 88.24

tax = 4.412

tip = 20/100 * 88.24

tip = 17.648

Total amount = 88.24 +4.412+17.648

= 111.18

So, If Mr. Rankin put $120 on the table, the change he would receive

= 120 -111.18 =  8.82

Therefore,  If Mr. Rankin put $120 on the table, the change he would receive $8.82

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Answer:

Do like this

Step-by-step explanation:

Hope it helps you

False. We would anticipate the second-year GPA to be slightly higher than the 40th percentile based on the regression impact.

How does your GPA translate?

Given this,

 A student who has a first-year GPA in the 40th percentile

is likely to have a second-year GPA in the same range.

The scatter plot is shaped like a football.         ————— (False)

If the scatter diagram is shaped like a football, then all of the data points are drawn in a circle. As a result, the data does not fit well.

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Answer:

See below.

Step-by-step explanation:

First, you want to turn the percentage into a decimal. To do that, divide the percentage by 100.

\(\frac{5.1}{100} =0.051\)

Next, multiply the percentage by the price.

\(129*.051=6.579\)

\(6.579\) rounded to the nearest cent would be \(6.58\).

Last, you would subtract to find the answer.

\(129-6.58=122.42\)

Answer: $122.42

:)

In the given statement is :

Of the three types of general survivorship curves, which can be most likely expected to live closest to its maximum life expectancy?

In this case, In Type I Curve, organisms tend to live up to maximum life expectancy. They survive their adulthood and die when they become elderly. Humans come under this category.

Survivorship Curve:

The Survivorship Curve is used to represent the number of population that are expected to live to a certain age. There are three types of survival curves they are Type I, Type II, Type III. Each curve will show the life expectancy of a particular group of organisms.

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(a) The minimum value of the function \(f(x, y) = 4x^2 + 8y^2\)subject to the constraint x + y = 0 is 0. This is obtained by solving the Lagrange equations and finding the critical point at (0, 0), which is confirmed to be a minimum through the second partial derivatives test.

(b) The minimum value of the function \(f(x, y) = 4x^2 + 8y^2\) subject to the constraint \(x^2 + y^2 = 2\) is 8. By using the Lagrange equations, we find the critical points at (±√2, ±√2) and evaluate the function at these points. The minimum value is attained at (±√2, ±√2) with f(±√2, ±√2) = 8.

(c) The function\(f(x, y) = 4x^2 + 8y^2\) subject to the constraints x + y = 0 and \(x^2 + y^2 = 2\) does not have a minimum value. The constraints are incompatible, resulting in an empty feasible region.

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Answer:

there is no change because it is a circle

Answer:

The answer is 24%.

Step-by-step explanation:

If you subtract 798 from 1050 you will get 252. Then, divide 252 by 1050. What you get from this is 0.24, which in percentage form is 24%.