Renee adds 5 to a number, then multiplies the sum by-2. The result is 8. Write and solve an equation to find the number, x. What is the number? ​

Answer: D' is (-8,4)

Step-by-step explanation: The rule for reflection y=x is (x,y)>( y,x) So when  relecting over the axis y=x the x cordinate and the y cordinate switch places.

Answer:

0.68

Step-by-step explanation:

Answer:

0.68

Step-by-step explanation:

Answer:

Set up trig ratio using tangent.

Tan theta = opp/adj

Tan theta = 500/800

Tan^-1 (500/800) = 32 degrees

Check the picture below.

Answer:

at one gas station, gas costs $2.75 per gallon. write and equation that relates the total cost, C, to the number of gallons of gas purchased:  2.75 g  

The absolute value of x minus one is equal to two. Therefore, x must be either one greater than two (x = 3) or one less than two (x = 1).

One less than x results in a value of two in absolute terms. As a result, x minus 1 has an absolute value of 2, which is a positive number. The separation of an integer from zero is its absolute value. As a result, x minus 1 is two units from zero in absolute terms. As x minus one has an absolute value of two, its real value must either be two or a negative two. That is to say, x must either be one more than two (x = 3) or one less than two (x = 1).In order to confirm this, let's look at a few examples. If x = 3, then |x - 1| = |2 - 1| = |1| = 1 which is not equal to two. Therefore, x = 3 is not the answer we are looking for. On the other hand, if x = 1, then |x - 1| = |1 - 1| = |0| = 0 which is not equal to two. Therefore, x = 1 is also not the answer we are looking for. The only two possible solutions for the equation |x - 1| = 2 are x = 3 and x = 1. Therefore, the result of |x - 1| = 2 is that x must be either one greater than two (x = 3) or one less than two (x = 1)

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The molar solubility of scandium fluoride can be calculated using the solubility product constant (Ksp) and stoichiometry. The molar solubility is approximately 7.61 × 10^(-9) mol/L.

The solubility product constant (Ksp) is an equilibrium constant that represents the equilibrium between a solid compound and its dissociated ions in a saturated solution.

For scandium fluoride (ScF3), the equilibrium can be represented as follows:

ScF3 (s) ⇌ Sc³⁺ (aq) + 3F⁻ (aq)

The solubility product expression for this equilibrium is:

Ksp = [Sc³⁺][F⁻]³

Given that the Ksp value for scandium fluoride is 5.8 × 10^(-24), we can use this information to calculate the molar solubility.

Step 1: Assign variables to the molar solubility.

Let x represent the molar solubility of ScF3 in mol/L.

Step 2: Write the equilibrium expression.

Since the stoichiometry of the reaction is 1:3, the equilibrium expression becomes:

Ksp = (x)(3x)³ = 27x⁴

Step 3: Substitute the Ksp value and solve for x.

Plugging in the Ksp value of 5.8 × 10^(-24), we have:

5.8 × 10^(-24) = 27x⁴

Step 4: Solve for x.

Taking the fourth root of both sides, we get:

x⁴ = (5.8 × 10^(-24))/27

x⁴ ≈ 7.61 × 10^(-26)

Taking the square root of both sides, we find:

x ≈ 7.61 × 10^(-9) mol/L

Therefore, the molar solubility of scandium fluoride is approximately 7.61 × 10^(-9) mol/L.

In summary, by using the solubility product constant (Ksp) and stoichiometry, we can calculate the molar solubility of scandium fluoride. In this case, the molar solubility is approximately 7.61 × 10^(-9) mol/L, indicating that scandium fluoride has a very low solubility in water.

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In summary, given a simple dataset with 30 points, the following steps were performed: (a) OLS estimation was used to calculate the coefficients β^0 and β^1 for the regression of Y on X.

(b) the predicted value of Y was calculated for each observation; (c) the residuals were calculated for each observation; (d) the Explained Sum of Squares (ESS), Total Sum of Squares (TSS), and Residual Sum of Squares (RSS) were calculated separately; (e) the coefficient of determination R^2 was calculated; (f) the predicted value of Y was determined when X equals the last digit of the CUNY ID plus one; and (g) the interpretation of β^0 and β^1 was provided.

In detail, to calculate the OLS estimates of coefficients β^0 and β^1, a regression model of Y on X was fitted using the given dataset. β^0 represents the intercept term, which indicates the value of Y when X is zero. β^1 represents the slope of the regression line, indicating the change in Y corresponding to a unit change in X.

The predicted value of Y for each observation was obtained by plugging the corresponding X value into the regression equation. The residuals were then calculated as the difference between the observed Y values and the predicted Y values. ESS represents the sum of squared differences between the predicted Y values and the mean of Y, indicating the variation explained by the regression model.

TSS represents the total sum of squared differences between the observed Y values and the mean of Y, representing the total variation in Y. RSS represents the sum of squared residuals, indicating the unexplained variation in Y by the regression model. R^2, also known as the coefficient of determination, was calculated as ESS divided by TSS, indicating the proportion of total variation in Y explained by the regression model. Finally, the predicted value of Y was determined when X equals the last digit of the CUNY ID plus one, allowing for an estimation of Y based on the given information.

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The algorithm progresses and the K values decrease, the sublists become more sorted, leading to a final sorted list.

To sort the list {4, 9, 2, 5, 3, 10, 8, 1, 6, 7} using Shell sort, we will use the K values as N/2, N/4, ..., 1, where N is the size of the list.

Here are the steps and contents after each round of K:

Initial list: {4, 9, 2, 5, 3, 10, 8, 1, 6, 7}

Step 1 (K = N/2 = 10/2 = 5):

Splitting the list into 5 sublists:

Sublist 1: {4, 10}

Sublist 2: {9}

Sublist 3: {2, 8}

Sublist 4: {5, 1}

Sublist 5: {3, 6, 7}

Sorting each sublist:

Sublist 1: {4, 10}

Sublist 2: {9}

Sublist 3: {2, 8}

Sublist 4: {1, 5}

Sublist 5: {3, 6, 7}

Contents after K = 5: {4, 10, 9, 2, 8, 1, 5, 3, 6, 7}

Step 2 (K = N/4 = 10/4 = 2):

Splitting the list into 2 sublists:

Sublist 1: {4, 9, 8, 5, 6}

Sublist 2: {10, 2, 1, 3, 7}

Sorting each sublist:

Sublist 1: {4, 5, 6, 8, 9}

Sublist 2: {1, 2, 3, 7, 10}

Contents after K = 2: {4, 5, 6, 8, 9, 1, 2, 3, 7, 10}

Step 3 (K = N/8 = 10/8 = 1):

Splitting the list into 1 sublist:

Sublist: {4, 5, 6, 8, 9, 1, 2, 3, 7, 10}

Sorting the sublist:

Sublist: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

Contents after K = 1: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

After the final step, the list is sorted in increasing order: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}.

Note: Shell sort is an in-place comparison-based sorting algorithm that uses a diminishing increment sequence (in this case, K values) to sort the elements. The algorithm repeatedly divides the list into smaller sublists and sorts them using an insertion sort. As the algorithm progresses and the K values decrease, the sublists become more sorted, leading to a final sorted list.

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Since the value is a numerical measurement representing a property of a sample, it is statistical.

Given that a sample of workers is chosen, and it is discovered that 55% of them possess a car.

Let's first clarify the distinction between a parameter and a statistic before moving on to the questions.

Parameters are numerical summaries of population statistics. However, statistics are numerical summaries of sample data.

Sample is a subset of the population; as such, it is just a small percentage of the whole population.

The percentage of the sample of employees in this case is 55%. Statistic refers to a numerical representation of data about a sample.

The value is statistical since it is a numerical measurement that describes a property of a sample.

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The scale of the drawing of theater based on the value of scale in drawing and actuals stage is 1:4.

The scale of the drawing will be calculated by the formula -

Scale of the drawing = measure of new shape/measure of original shape

Keep the values in formula to find the scale of the drawing

Scale of the drawing = 5/20

Performing division on Right Hand Side of the equation to find the scale of the drawing

Scale of the drawing = 1:4

Hence, the scale of the drawing of theater when comparing drawing and actual theater is 1:4.

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The length of AC is 6.228 cm.

Here the angle of the triangle ∡ABC is 40°, AB = BC = 9.

We have to find the length of AC which is opposite to ∡B.

Let AB = BC = x , AC = c

From the cosine formula, we know that

\(c^{2}\) = \(a^{2}\) + \(b^{2}\) - 2ab cos α

Here c is the length of the side opposite to the angle α, and a, b is the side adjacent to the angle α.

So from the cosine formula we have

\(c^{2}\) = \(x^{2}\) + \(x^{2}\) -2\(x^{2}\)cos α

\(c^{2}\) = 2\(x^{2}\) - 2\(x^{2}\) cos 40°

   = 2\(x^{2}\)(1- cos 40°)

   = 2 ×\(9^{2}\) ( 1 - 0.76)

    = 2 × 81 × 0.24

c = 2 × 9 × 0.2×√3

  =3.6 × 1.73

  = 6.228cm

Therefore the length of the side AC is 6.228cm.

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Answer:

x≤1

Step-by-step explanation:

7≥3x+4

Intercambie los lados para que todos los términos de las variables estén en el lado izquierdo. Esto cambia la dirección de la señal.

3x+4≤7

Resta 4 en los dos lados.

3x≤7−4

Resta 4 de 7 para obtener 3.

3x≤3

Divide los dos lados por 3. Dado que 3 es >0, la dirección de desigualdad sigue siendo la misma.

x≤  

3

3

​

Divide 3 entre 3 para obtener 1.

x≤1

Answer:

B. John's boat was farther from the dock at the beginning, and it

traveled more quickly

Step-by-step explanation:

l did the test

The boat was farther from the dock at the beginning, and which traveled more quickly is option is B John's boat was farther from the dock at the beginning and it traveled more quickly

Distance is a numerical measurement of how far apart objects or points

The speed of an object is the magnitude of the rate of change of its position with time or the magnitude of the change of its position per unit of time

At beginning John's boat was 20 miles from dock

After 5 hours its was 55 miles form the dock

Speed of the boat = Distance / Time

Speed = \(\frac{55-20}{5}\)= 7 miles per hour

Robert boat is represented by the function

y=6x+10

at starting x=0

y = 10 miles away from the dock

After 5 hours x=5

y = 6×5+10

y=40 miles away from the dock

Speed of the Robert's boat = \(\frac{40-10}{5}\)

Speed = 6 miles per hour

Hence, The boat was farther from the dock at the beginning, and which traveled more quickly is option is B John's boat was farther from the dock at the beginning and it traveled more quickly

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Answer:

need points

Step-by-step explanation:

is this a question

Answer:

Step-by-step explanation:

kidney beans : all beans

440:660 (simplify by dividing each by gcf which is 2^2(5)11=220)

2:3

Answer:

440:660 OR Simplified 2:3

Step-by-step explanation:

You already had the two numbers for the ratio, they added the cranberry beans in the sentence like that to confuse you and draw you away from the real answer. All you needed to do was arrange the numbers into a ratio, and simplify.

These problems are meant to to be confusing, so to stay away from the confusing parts, just reread them and you'll get it correct 24/7!

Hope you get this right.

In the context described, increases in snow levels are represented by positive numbers, while decreases in snow levels are represented by negative numbers.

Positive numbers are used to indicate upward or increasing quantities. Therefore, when snow levels rise or increase, they are recorded with positive numbers. This convention allows for a consistent and intuitive representation of data, where higher values correspond to larger amounts of snow. It simplifies comparisons and calculations, as positive numbers can be directly added or compared to determine the extent of the increase.

Conversely, negative numbers are used to denote downward or decreasing quantities. When snow levels decrease, they are recorded with negative numbers. This convention helps to maintain consistency in representing the direction and magnitude of changes in snow levels. It enables easy identification and distinction between increases (positive numbers) and decreases (negative numbers), facilitating the analysis of snowfall patterns over time.

By adopting this convention, researchers, meteorologists, and other professionals working with snowfall data can effectively communicate and interpret changes in snow levels using a standardized and easily understandable format.

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The required value of d in the given arithmetic operation is 9/10.

What are subtraction and addition?

The two main arithmetic operations that we learn to add and subtract two or more integers or other mathematical values are addition and subtraction. To add, one must add two or more numbers or values to produce a new number. The inverse of addition is subtraction and vice versa.

For instance, 10 - 1 = 9 if 9 + 1 = 10. That demonstrates that adding 1 produces the number 10 when added to 9, but subtracting 1 from 10 produces the number 9.

Given, -1/3d + 4/5 = 1/2

\(\frac{-1}{3} d+\frac{4}{5} =\frac{1}{2} \\\\\frac{-1}{3} d =\frac{1}{2}-\frac{4}{5}\\\\\frac{-1}{3} d = \frac{5-8}{10}\\\\\frac{-1}{3} d = \frac{-3}{10}\\\\\frac{d}{3}=\frac{3}{10}\\\\d = \frac{9}{10}\)

So, the required value of d = 9/10.

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Answer: y = -1

Step-by-step explanation:

Coordinate: (-3, -1)

Slope: Parallel to y axis, 0 slope.

Plug in the numbers to slope-intercept form: -1 = 0(-3) + b (b is the y-intercept)

Solve for b:

-1 = 0(-3) + b

-1 = b

Final Equation: y = -1

Answer:

a=107°

Step-by-step explanation:

The angles along a straight line always add up to 180. 73+107=180

Answer:

180° - 73° = 107°

a= 107°

Step-by-step explanation:

He bro! What's up ? Are you from US?

Answer:

1250

Step-by-step explanation:

that's what I got please let me know if I'm correct

Answer:

1/2 teaspoon salt

Step-by-step explanation:

We can make this into a ratio of salt:baking soda

1/8:1/4

now, how many 1/4 will we need to make 1?

If we multiply 1/4 by 4, we get one. So, we should do the same to 1/8!

1/8*2=4/8, or 1/2 teaspoon

To determine how many dollars a restaurant makes per day, the restaurateur would need to measure the "revenue" metric.

Revenue is the total amount of money a business earns from its sales or services provided over a specific period of time, in this case, daily. It includes all income generated by the restaurant from selling food and drinks to customers.

Measuring revenue is essential for any business as it helps the owner understand the financial health of their enterprise. By tracking revenue over time, the restaurateur can identify patterns and trends and make informed decisions to increase profits and improve the business's overall performance.

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Answer:

3x + 6 = 72

Step-by-step explanation:

x + x + 2 + x + 4 = 72

Answer:

D. {(2,3) (2,5) (4,7)}

Step-by-step explanation:

2 has an output od 3 and 5, and 4 has an output of 7

Answer:

14^2/15

Step-by-step explanation:

70/15 simplifies to 14/3

14/3 X 14/5

= 14^2/15

Answer:

x = 5/4

Step-by-step explanation:

5x - 6 = 4 - 3x

8x - 6 = 4

8x = 10

x = 5/4

The error is that -3x is moved across the = in an incorrect manner. You instead need to add the 3x across the = ending up with 5/4. Adding this across negates the negative which makes it 8x, the rest of the step are as follows.

Answer: Option 3 or C. The three sides have the same length.

Step-by-step explanation: Trust Me!

An equilateral triangle has all three sides the same length.

Took the quiz on Edge and got the answer correct.

Good luck everyone!  :)