Please tell me the correct answer. If u answer correct I’ll mark u as brainiest. I really need help.

Answer:

Step-by-step explanation:

Answer:

16.02 is the amount

Step-by-step explanation:

29.99 + 8.99 = 39.98

55.00 - 39.98 = 16.02

The statement given "regression equations are usually used to predict values of unavailable data. if the data do not closely model a particular type of function, then that type of function is not appropriate to use in statistical regression. the more closely data fit a model, the more predicted values will be." is true because regression equations are indeed employed for predicting values of unavailable data.

Regression equations are commonly utilized to make predictions for unavailable data. When the data does not closely conform to a specific type of function, that function is deemed inappropriate for statistical regression. The accuracy of predicted values is contingent on the degree of resemblance between the data and the chosen model. Hence, a strong fit between the data and the model enhances the reliability of predicted values, ensuring that regression analysis is effectively applied for making accurate predictions.

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The value of integer k is -5.

Polynomial equations formed with variables, exponents and coefficients .

Since the polynomial has three integer roots, we can express it as:

(x - r1)(x - r2)(x - r3) = 0

where r1, r2, and r3 are the three integer roots.

Expanding the left-hand side, we get:

x^3 - (r1 + r2 + r3)x^2 + (r1r2 + r1r3 + r2r3)x - r1r2r3 = 0

Comparing this with the given polynomial, we see that:

r1 + r2 + r3 = 1

r1r2 + r1r3 + r2r3 = k

r1r2r3 = 3

First we need to find the value of k. From the first equation, we see that one of the roots must be 1, since the sum of three integers that are not 1 cannot be 1. Without loss of generality, assume that r1 = 1. Then we have:

r2 + r3 = 0

r2r3 = 3

Since the roots are integers, the only possibility is r2 = -3 and r3 = 1.

Therefore, we have:

k = r1r2 + r1r3 + r2r3 = 1(-3) + 1(1) + (-3)(1) = -5

Therefore, the value of integer k is -5.

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The price of 1 liter of petrol at the cheaper petrol station is £0.68.

What is the conversion rate?

Just dividing the number of conversions by the total number of ad interactions that can be linked to a conversion within the same time period yields the conversion rate. Your conversion rate would be 5%, for instance, if you had 50 conversions out of 1,000 interactions, as 50 divided by 1,000 equals 5%.

Here, we have

Given: The prices of petrol in a British and an American petrol station are shown below. The conversion rate is $1 = £0.80.

We have to find the price of 1 liter of petrol in the cheaper petrol station.

$1 = £0.80

= £13.20×($1/£0.80)

= $16.5

For British petrol station

12 liter of petrol = $16.5

1 liter = $16.5/12

1 liter = $1.375

For American petrol station

20 liters of petrol = $17

1 liter = $17/20

1 liter = $0.85

The price of cheaper petrol from American petrol stations = $0.85× (£0.80/$1)

= £0.68

Hence, the price of 1 liter of petrol at the cheaper petrol station is £0.68.

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Answer:

soln;

given equation is 6x + 5 = 2y

or, 6x -2y + 5 = 0

comparing with ax + by + c = 0

a = 6, b = -2, c = 5

We are given the following picture

We are given the following statements

- Line BA is congruent to line OC

- Line ON is congruent to line DA

- Angle A is congruent to angle O

If we highlight the congruencies we get

where the matching colors indicate congruency. As we can see, we have a pair of sides that are congruent and the included angle are also congruent. This is the condition for the SAS theorem to apply. Hence both triangles are congruent by the SAS theorem

Answer:

1x²+5 x 6x

Step-by-step explanation:

Step-by-step explanation:

From distance formula

(x

2

−x

1

)+(y

2

−y

1

)+(z

2

−z

1

)

AB=

1+4+1

=

6

AC=

36+5+9

=

56

=3

6

AC

AB

=

EC

BE

⇒

3

6

6

=

EC

BE

⇒

EC

BE

=

3

1

So now we can find point E

E=(

m

1

+m

2

x

1

x

2

+m

2

m

1

),(

m

1

+m

2

m

1

y

2

+m

2

y

1

),(

m

1

m

2

m

1

z

2

+m

2

z

1

)

E=(

4

−5+6

,

4

2+3

,

4

−6−6

)=E(

4

1

,

4

5

,−3)

Now we can find distance AE

AE=

(1−

4

1

)

2

+(1−

4

5

)

2

+(−3+3)

2

AE=

16

9

+8

16

1

+0

AE=

4

3

10

Based on the given options, the situation that would give the best estimate of a population proportion is Sample size 120, sample proportion 0.58 . Option B is the correct option.

We must take into account the sample size and sample percentage to evaluate which scenario would provide the most accurate estimate of a population proportion.

Larger sample sizes are often used to get the best estimates of population proportions since they give more accurate and trustworthy data about the population. A bigger sample size lowers the error margin and boosts the estimation's level of confidence.

The scenario that would provide the most accurate estimate of a population proportion based on the available alternatives is Sample proportion 0.58 and sample size 120.

Compared to the other alternatives, this option has a considerably higher sample size, which raises the estimate's accuracy and precision. A greater representation of the predicted population proportion is also indicated by the sample proportion of 0.58.

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An independent variable is a variable that is independent of the other factors you are attempting to assess.

An independent variable is a variable that is independent of the other factors you are attempting to assess. Age is just one example of an independent variable. Other elements (such as what they consume, how much they attend school, and how much television they watch) won't alter a person's age. In actuality, you are attempting to determine whether the independent variable affects the dependent variables in any way when you are looking for a link between the variables.

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Answer:

4n -13

Step-by-step explanation:

notice that the difference between the adjacent terms is 4.

nth term is given by:

nth term = first term + (n-1) × difference -n is any number

= -9 + (n-1) × 4

= -9 + 4n -4

= 4n -13

Answer:

C

Step-by-step explanation:

the Jacobian determinant for the transformation \(x = 6u\sin(5v), y = 6u\cos(5v)\) is \(J = -180u\).

To find the Jacobian determinant of the transformation \((x, y) \rightarrow (u, v)\) for the given equations, we need to compute the partial derivatives of x and y with respect to u and v, respectively, and then calculate the determinant.

Transformation 1: \(x = 6u\cos(5v), y = 6u\sin(5v)\)

We start by finding the partial derivatives:

\[\frac{\partial x}{\partial u} = 6\cos(5v)\]

\[\frac{\partial x}{\partial v} = -30u\sin(5v)\]

\[\frac{\partial y}{\partial u} = 6\sin(5v)\]

\[\frac{\partial y}{\partial v} = 30u\cos(5v)\]

Now, we can calculate the Jacobian determinant:

\[J = \frac{\partial (x, y)}{\partial (u, v)} = \begin{vmatrix} \frac{\partial x}{\partial u} & \frac{\partial x}{\partial v} \\ \frac{\partial y}{\partial u} & \frac{\partial y}{\partial v} \end{vmatrix} = \begin{vmatrix} 6\cos(5v) & -30u\sin(5v) \\ 6\sin(5v) & 30u\cos(5v) \end{vmatrix}\]

Simplifying the determinant:

\[J = (6\cos(5v))(30u\cos(5v)) - (-30u\sin(5v))(6\sin(5v))\]

\[J = 180u\cos^2(5v) + 180u\sin^2(5v)\]

\[J = 180u(\cos^2(5v) + \sin^2(5v))\]

\[J = 180u\]

Therefore, the Jacobian determinant for the transformation \(x = 6u\cos(5v), y = 6u\sin(5v)\) is \(J = 180u\).

Transformation 2: \(x = 6u\sin(5v), y = 6u\cos(5v)\)

We repeat the same process for the second transformation:

\[\frac{\partial x}{\partial u} = 6\sin(5v)\]

\[\frac{\partial x}{\partial v} = 30u\cos(5v)\]

\[\frac{\partial y}{\partial u} = 6\cos(5v)\]

\[\frac{\partial y}{\partial v} = -30u\sin(5v)\]

The Jacobian determinant:

\[J = \begin{vmatrix} \frac{\partial x}{\partial u} & \frac{\partial x}{\partial v} \\ \frac{\partial y}{\partial u} & \frac{\partial y}{\partial v} \end{vmatrix} = \begin{vmatrix} 6\sin(5v) & 30u\cos(5v) \\ 6\cos(5v) & -30u\sin(5v) \end{vmatrix}\]

Simplifying the determinant:

\[J = (6\sin(5v))(-30u\sin(5v)) - (30u\cos(5v))(6\cos(5v))\]

\[J = -180u\sin^2(5v) - 180u\cos^2(5v)\

]

\[J = -180u(\sin^2(5v) + \cos^2(5v))\]

\[J = -180u\]

Therefore, the Jacobian determinant for the transformation \(x = 6u\sin(5v), y = 6u\cos(5v)\) is \(J = -180u\).

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Answer:

7/10

0.7

Step-by-step explanation:

% = percent

percent literally means "per 100"

It is the same as dividing by 100.

70% = 70/100 = 7/10 = 0.7

Answer:7/10

Step-by-step explanation:

How do you change a fraction to a decimal step by step?

The line in a fraction that separates the numerator and denominator can be rewritten using the division symbol. So, to convert a fraction to a decimal, divide the numerator by the denominator. If required, you can use a calculator to do this.

To convert a Percent to a Fraction follow these steps:

Step 1: Write down the percent divided by 100 like this: percent 100.

Step 2: If the percent is not a whole number, then multiply both top and bottom by 10 for every number after the decimal point. ...

Step 3: Simplify (or reduce) the fraction.

Use the information in provided in each part of the question to analyze the probability is 42.

Use the information in provided in each part of the question to analyze the probability.

A dealer deals a hand consisting of 3 spades, 4 diamonds. 6 clubs and 5 hearts. If two cards are picked at random from that hand without replacement,

The two types of compound events are calculated using several formulas: If two occurrences, A and B, are mutually exclusive, then P(A or B) = P (A) + P (B). P (A or B) = P(A) + P(B) - P for mutually inclusive occurrences (A and B).

Once the first event has occurred, multiply the likelihood of the subsequent event by the previous event's probability to arrive at the compound probability of dependent events.

P (A) + P (B)

3(4) + 6(5) = 12 + 30 = 42.

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I HOPE IT WILL HELP YOU.

Have a great day .

THANK YOU.

^ - ^

Answer:

4

Step-by-step explanation:

because if it has two Pairs that's 2 on each side of the side of the shape

so, when you have a figure of 2 parallel sides id would be a parallelogram

39° is the angle of elevation from a point on the level ground 200 feet away from the building.

A frequently used concept in relation to height and distance is the angle of elevation, particularly in trigonometry. It is described as an angle between the horizontal plane and an oblique line connecting the observer's eye to an object above his eye.

This angle eventually forms above the surface. As the name suggests, the angle of elevation is shaped in such a way that it is above the observer's eye.

The triangular scenario is ΔABC

The height of building, AB = 250 ft

Distance of building from elevation point, BC = 200 ft

We have to find angle of elevation, ∠c = θ

\($ \text {Tan}\ \theta = \frac{BC}{AB} = \frac{200}{250}\)

\($ \text {Tan}\ \theta = \frac{4}{5}\)

Tan θ = 0.8

θ = 39°

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Answer:

2(x+7)+10

Step-by-step explanation:

The phrase that would best match the expression would be answer A.

square

its the middle bit that looks darker than the rest.

Answer: x = 7/2

Step-by-step explanation: Isolate the factor by dividing each side by factors that don't contain a variable.

According to the information we can infer that Dora's conclusion may be incorrect because the information provided only states that the number of people who spent time reading falls within specific ranges (0-2 hours, 2-4 hours, and 2-10 hours), but it does not give a specific count for those who spent at least 4 hours. Therefore, Dora's assumption that "most people spent at least 4 hours a week reading" is not supported by the given data.

The range of the time spent reading cannot be determined from the information provided because the ranges are overlapping. For example, a person who spent exactly 2 hours reading could fall into both the first range (0-2 hours) and the second range (2-4 hours). Without more specific data or non-overlapping ranges, it is not possible to determine the exact range of time spent reading.

To estimate the mean time spent reading by Dora's friends, we can calculate the midpoint of each range and use it as an approximate value. The midpoint for the first range (0-2 hours) is 1 hour, for the second range (2-4 hours) is 3 hours, and for the third range (2-10 hours) is 6 hours. We can then calculate the estimated mean by taking the weighted average of these midpoints using the respective number of people as weights.

Estimated mean = [(4 * 1) + (5 * 3) + (11 * 6)] / (4 + 5 + 11) = 4.53 hours (approximately)

So, an estimate of the mean time spent reading by Dora's friends is approximately 4.53 hours.

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The estimated total cost of the clothes in your cart is $104.

Estimated costs are approximate projections of future costs associated with producing goods or completing a project. This includes both fixed and variable costs such as labor, materials and capital. Cost forecasting is very important for project-based companies. Upon notice, the parties must comply with the Fixed Price Agreement. Based on the prices you provided, the estimated cost of the items in your cart would be:

$23 (shirt) + $38 (trousers) + $17 (sweatshirt) + $26 (shoes) = $104

Therefore, the estimated total cost of the clothes in the cart is $104. However, please note that this is only an approximation and actual costs may vary due to factors such as sales tax and applicable discounts. 

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so you know the how to find the area for a saquare A=a*b first we have to find the area for a circle 10*10=100 A=100cm (2) is the area for our circle

so we have half of the circle so formula for that is A=(πr(2))/2 we know the radius is 5 A=3.14*25/2

A=78.5/2 reason why we are dividing by this number to 2 because we have half of the circle A=39.25 then add two areas together A=100+39.25=....

Answer:

First we need to express y in this inequality:

-2y > -4x + 20

-y > -2x + 10

y < 2x - 10

The line isn't solid because the "less" sign doesn't include equal in it.

Because the sign is "less than" the shaded part is Below the line.

Merging these 2 conclusion we get the answer:

below the dashed line.

Step-by-step explanation:

Half a pound of mixed nuts would cost 18 cents.

To find the cost of half a pound of mixed nuts, we can set up a proportion using the given information.

First, we know that five-sixths of a pound costs 60 cents. So, we can write the proportion:

(5/6) pound / 60 cents = (1/2) pound / x cents

To solve for x, we can cross-multiply:

(5/6) * x = (1/2) * 60

Simplifying the equation:

5x/6 = 30/2

Cross-multiplying again:

5x * 2 = 6 * 30

10x = 180

Dividing both sides by 10:

x = 18

Therefore, half a pound of mixed nuts would cost 18 cents.

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