Complete the solution of the equation. Find the value of y when x equals 7. x - 4y = 19 Enter the correct answer.​

The point of intersection of concurrent lines is called the point of concurrency.

Concurrent lines are lines that intersect at a single common point. This point of intersection is also known as the point of concurrency.

It can also be said that concurrent lines are lines that pass through a common point and this point is known as the point of intersection or point of concurrency.

In geometric figures, there are some special point of concurrency. For example, in a triangle, there are three special point of concurrency: the incenter, the circumcenter, and the orthocenter. The incenter is the center of the inscribed circle, the circumcenter is the center of the circumcircle and orthocenter is the point where the three altitudes of the triangle intersect.

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A randomization test with 10,000 randomizations found that the absolute difference between group means was greater than or equal to 2 mm in 490 of the randomizations. We can conclude that there was a marginally significant difference between groups (p = 0.049).

Randomization tests are used to examine the null hypothesis that two populations have similar characteristics. The hypothesis testing approach used in statistics is a formal method of decision-making based on data. In hypothesis testing, a null hypothesis and an alternative hypothesis are used to determine if the results of the data support the null hypothesis or the alternative hypothesis. A p-value is calculated and compared to a significance level (usually 0.05) to determine whether the null hypothesis should be rejected or not. In this scenario, the difference in mean size between shells taken from sheltered and exposed reefs was found to be 2 mm. A randomization test with 10,000 randomizations found that the absolute difference between group means was greater than or equal to 2 mm in 490 of the randomizations. Since the number of randomizations in which the absolute difference between group means was greater than or equal to 2 mm was less than the significance level (0.05), we can conclude that there was a marginally significant difference between groups (p = 0.049).

We can conclude that there was a marginally significant difference between groups (p = 0.049).

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We can reject the null hypothesis and conclude that there is a marginally significant difference between groups (p = 0.049)

To solve this problem, we need to perform a hypothesis test where:

Null Hypothesis, H0: There is no difference between the two groups.

Alternate Hypothesis, H1: There is a difference between the two groups.

Here, the mean difference between the two groups is given to be 2 mm. Also, we are given that 490 out of 10000 randomizations have an absolute difference between group means of 2 mm or more.

The p-value can be calculated by the following formula:

p-value = (number of randomizations with an absolute difference between group means of 2 mm or more) / (total number of randomizations)

Substituting the given values in the above formula, we get:

p-value = 490 / 10000p-value = 0.049

Therefore, the p-value is 0.049 which is less than 0.05. Hence, we can reject the null hypothesis and conclude that there is a marginally significant difference between groups (p = 0.049).

The correct option is (e) There was a marginally significant difference between groups (p = 0.049).

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Let's consider an example with hypothetical data for two crops, Wheat and Rice, obtained from five farmers:

| Farmer | Rabi Crop (tons/ha) | Kharif Crop (tons/ha) |

|--------|--------------------|----------------------|

|   F1   |        4.5         |         6.2          |

|   F2   |        3.8         |         5.5          |

|   F3   |        4.2         |         6.0          |

|   F4   |        5.1         |         7.3          |

|   F5   |        4.9         |         6.5          |

```

To calculate the selling price and profit, you would need additional information such as the selling price per ton for each crop and the cost of production. Let's assume the selling price for Wheat is $200 per ton and for Rice is $250 per ton. We will also assume a production cost of $150 per ton for both crops.

To calculate the profit for each farmer, you can use the following formula:

Profit = (Selling Price - Production Cost) * Production

For example, let's calculate the profit for Farmer F1 with the given data:

Profit for Wheat = (200 - 150) * 4.5 = $225

Profit for Rice = (250 - 150) * 6.2 = $620

Repeat this calculation for each farmer and crop combination to obtain the profits for all.

Once you have the data for production, selling price, and profit, you can create a double bar graph to compare the production of Wheat and Rice in the farmers' fields. The x-axis will represent the farmers, and the y-axis will represent the production (tons/ha). Each farmer will have two bars, one for Wheat and one for Rice, showing the respective production amounts.

Please note that the actual selling price, production costs, and profits may vary based on various factors, and you would need specific data and current market information to calculate accurate values.

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Answer:

Step-by-step explanation:

It would be true

Answer:

k=2 so false

Step-by-step explanation:

Answer:

x > \(\frac{18}{5}\)

Step-by-step explanation:

5x + 2 > 20 ( subtract 2 from both sides )

5x > 18 ( divide both sides by 5 )

x > \(\frac{18}{5}\) or x > 3.6

Answer:

17

Step-by-step explanation:

The computation is shown below:

Here we applied the pythagoras theroem

Given that

Diagonal of 18.4 feet

Width of 7 feet

So, the area would be

= 18.4^2 - 7^2

= 17

Answer:

44

Step-by-step explanation:

1/2×2=1

22×2=44

The car is going 44 miles in 1 hour

The answer to the question is False. The randomization assumption is not violated in this problem.

As we have been informed that the researcher flipped a coin to determine what day the employees would first listen to music, it is assumed that the randomization of treatment assignment was performed. Therefore, the randomization assumption is not violated in this problem. In the context of statistics, the randomization assumption refers to the random assignment of treatments to individuals in a study. This is done to ensure that the groups being compared are as similar as possible, except for the treatment that is being studied.The randomization assumption is critical to the validity of a study's conclusions because it ensures that any differences between groups are due to the treatment and not to some other factor. If the randomization assumption is violated, then the study's results may be biased and the conclusions drawn from it may be incorrect.In the given problem, the researcher is testing the effect of music on workplace productivity. She randomly samples 8 employees of a local accounting firm and records how long (in minutes) they work without logging a break on one day without music and then on one day with music. To determine what day the employees would first listen to music, the researcher flipped a coin. As we can see, the randomization of treatment assignment was performed by flipping a coin to determine the day the employees would first listen to music.Therefore, it can be concluded that the randomization assumption is not violated in this problem.

The randomization assumption is not violated in the given problem, as the researcher randomly assigned the treatment (music) to the employees by flipping a coin. The randomization assumption is critical to the validity of a study's conclusions, and its violation can lead to biased results and incorrect conclusions.

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Answer:

2(-7x + 3)

Step-by-step explanation:

-3(4x-2)-2x=

-12x + 6 - 2x =

-14x + 6 =

2(-7x + 3)  are all equivalent expressions.  

The given expression is equivalent to 2 (-7x + 3).

Expressions are mathematical statements which consist of two or more terms and terms are connected to each other using mathematical operators like addition, multiplication, subtraction and so on.

The given expression is, -3 (4x - 2) - 2x.

-3 (4x - 2) - 2x = [ (-3 × 4x) + (-3 × -2)] - 2x

The terms in the brackets are written so using the distributive property, p (q + r) = p q + p r.

Simplifying,

-3 (4x - 2) - 2x = -12x + 6 - 2x

                       = -14x + 6

                       = 2 (-7x + 3)

Hence the simplified form of the expression -3 (4x - 2) - 2x is 2 (-7x + 3).

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Step-by-step explanation:

Use z-score table to find the z-score that corresponds to .7000   ( 70%)

approx   .525   s.d.  above the mean

  .525  * 10 =  5.25  points above 100   = 105.25

Answer:

B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

X is many things but B is correct.

Answer:

The answer are

A)

\(4 \times 4 - 3b = 22 \\ - 3b = 6 \\ b = - 2\)

B)

\(4a = 22 + 3 \times 6 \\ a = 10\)

C)

\(4 \times 0 - 3b = 22 \\ b = \frac{ - 22}{3} \)

D)

\(4a - 3 \times 0 = 22 \\ a = \frac{22}{4} \)

E)

\(a = 22\)

( x - 2) ( x - 4 ) is function which is equal to g(x) .

In the simplest terms, what is a function?

f(x) = x² - 1

f( x - 3 ) = ( x - 3 )² - 1

             = x² + 9 - 6x -1

             = x² -6x + 8

             = x² -4x -2x + 8

             = x( x - 4 ) -2( x - 4)

             = ( x - 2) ( x - 4 )

g(x) = f(x - 3)

       = ( x - 2) ( x - 4 )

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Answer

Area = 324π ft²

Explanation

The area of a circle is given as

Area = πr²

where

π = pi

r = radius of the circle = 18 ft.

Area = πr²

Area = π (18²)

Area = 324π ft²

Hope this Helps!!!

For a result to be considered significant, the chances of its occurring as a result of random error are often less than 5 percent.

A coincidental discrepancy between the observed and true values of anything is known as a random error (e.g., a researcher misreading a weighing scale records an incorrect measurement).

It's not always a mistake when there is random error; rather, it happens when measurements are made. Even when you measure the same item repeatedly, there will always be some variation in your results because to changes in the environment, the instrument, or your own perceptions.

Your measurements are equally likely to be greater or lower than the genuine values due to random error, which has unexpected effects.

According to the given data,

For a result to be considered significant, the chances of its occurring as a result of random error are often less than 5 percent.

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Answer:

see below

Step-by-step explanation:

2/5

4/10

8/20

Answer:

(15×7)×29/€549×898×68

Answer:

I do not know

Step-by-step explanation:

if you are considering banning me plz do

Answer:

-3(k - 4)

Step-by-step explanation:

Hope this helps and pls do mark me brainliest:)

Answer:

1/2

Step-by-step explanation:

12 / 24 = 1/2

Answer:

12/24

Step-by-step explanation:

use the stander rise over run since the rise is 12 it goes over the run which is 24

Step-by-step explanation:

To find the angle between a line and the x-axis, we need to calculate the slope of the line first. The slope of a line passing through two points (x₁, y₁) and (x₂, y₂) is given by the formula:

m = (y₂ - y₁) / (x₂ - x₁)

Using the points (-2, 2) and (8, 9), we can substitute the values into the formula:

m = (9 - 2) / (8 - (-2))

= 7 / 10

= 0.7

The slope of the line is 0.7. The angle between the line and the x-axis can be found using the inverse tangent (arctan) function. The tangent of an angle is equal to the slope of the line, so we can write:

tan(θ) = 0.7

Taking the inverse tangent of both sides, we find:

θ = arctan(0.7)

Using a calculator, we can evaluate this to be approximately:

θ ≈ 35.87 degrees

Therefore, the angle between the line and the x-axis is approximately 35.87 degrees.

Answer:

56 degrees for Y and Z

Step-by-step explanation:

The quotient of the expression is 4x+1.

An expression is a set of terms combined using the operations +, – , x or ÷. An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An expression is in simplest form when no terms can be combined

Given:

The expression is

\((4x^{2} - 7x - 2) / (x-2)\)

By long division method the following steps are :

Divide the tens column dividend by the divisor. Then Multiply the divisor by the quotient in the tens place column ,Subtract the product from the divisor then at last Bring down the dividend in the ones column and repeat.

We have to find the quotient of the expression.

According to given question we have

\((4x^{2} - 7x - 2) / (x-2)\\\\=(x-2)(4x+1)/(x-2)\\\\=4x+1\)

Therefore, the quotient of the expression is 4x+1.

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The equation for traveling x miles in the cab can be written as:

Cost = $0.60 + $0.14 * x. The cab charges $0.88 for a ride of 2 miles. And the cab charges $1.72 for a trip of 8 miles.

a. The equation for traveling x miles in the cab can be written as:

Cost = $0.60 + $0.14 * x

b. To find the number of miles for a cab ride that costs $0.88, we can set up the equation:

$0.88 = $0.60 + $0.14 * x

Subtracting $0.60 from both sides, we get:

$0.88 - $0.60 = $0.14 * x

$0.28 = $0.14 * x

Dividing both sides by $0.14, we find:

x = $0.28 / $0.14

x = 2 miles

Therefore, the cab charges $0.88 for a ride of 2 miles.

c. To calculate the cost of a trip of 8 miles, we can substitute x = 8 into the equation:

Cost = $0.60 + $0.14 * 8

Cost = $0.60 + $1.12

Cost = $1.72

Therefore, the cab charges $1.72 for a trip of 8 miles.

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The expected profit per game is $37.50 and the standard deviation is $118.75.

To complete the probability distribution table, the probability of winning ($162) is 0.25 and the probability of losing (-1) is 0.75. This means that Tyler's expected profit per game is (0.25 x 162) + (0.75 x -1) = 37.50.

The standard deviation is the square root of (0.25 x (162-37.50)2) + (0.75 x (-1-37.50)2) = 118.75.

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You start with

    \((f\circ g) (-3) = f(g(-3))\)

You first find

    \(g(-3) = -3-2 = -5\)

You then substitute that back into the first line

    \(f(g(-3)) = f(-5) = 5(-5)^2-4 = 125-4 = 121\)

So, \((f\circ g) (-3) = 121\)

Answer:

36mm

Step-by-step explanation:

Ok so, here is what you do the 10mm and the 4mm you subtract them to get 6 then you will use 6 for the base of the triangle since, when we subtracted we got the rest for the bottom base of the triangle. Then we do 6 times 12 and we get 72. We divide 72 divided by 2 and get 36 and that is your answer 36mm.

Answer:

  x -5y = -15 . . . (infinite solutions)

Step-by-step explanation:

The two equations of your system of equations describe the same line, so every point is a point of intersection. There are an infinite number of solutions. Any (x, y) pair that satisfies the first equation will also satisfy the second equation.

To see this, multiply the second equation by 5:

  5(-1/5x +y) = 5(3)

  -x +5y = 15 . . . . . . identical to the first equation.

We choose to express this relation in standard form, which has the leading coefficient positive. Multiplying by -1 gives ...

  -1(-x +5y) = -1(15)

  x -5y = -15 . . . . . describes the solution set of this system

Answer:

6x-3=-5x+7 now add 3 to each side:

6x=-5x+10 now add 5x to each side:

11x=10 now divide each side by 11:

x= 10/11

Step-by-step explanation:

6x-3=-5x+7 now add 3 to each side:

6x=-5x+10 now add 5x to each side:

11x=10 now divide each side by 11:

x= 10/11

Answer:

she gets home at 2:30

Step-by-step explanation: