which expressions are equivalent to 2(2x + 4y + x - 2y)
2(x + 6y) and 2x + 12y
2(x+ 2y and 2x + 4y
2(3x + 2y) and 6x + 4y
2(3x + 6y) and 6x + 12y

​

Answer:

w = 9

Step-by-step explanation:

We have w = t and t = 9 , then

w = t = 9

Option fourth "The functions are not inverses because, for each ordered pair (x, y) for one function, there is no corresponding ordered pair (y, x) for the other function." is correct.

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

We have two tables shown in the picture.

Table (A) have values of x and a(x)

Table (B) have values of d and r(d)

As we know if the function has an inverse of it and (x, y) satisfies the function then (y, x) must satisfy the inverse of a function.

Thus, the option fourth "The functions are not inverses because, for each ordered pair (x, y) for one function, there is no corresponding ordered pair (y, x) for the other function." is correct.

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The equivalent units for the Compounding Department for August 2019 is 57,000 pounds.

Here is the explanation -

To calculate the equivalent units for the Compounding Department in August 2019 using the weighted average method, we need to consider the units that were started and completed, as well as the ending work-in-process.

Step 1: Calculate the equivalent units for units started and completed:
- 36,000 pounds were started.
- 34,000 pounds were transferred out.
Equivalent units for units started and completed = 34,000 pounds.

Step 2: Calculate the equivalent units for ending work-in-process:
- Ending work-in-process was 70% processed.
- Beginning work-in-process was 2,000 pounds (60% processed).
Equivalent units for ending work-in-process = (70% x Ending work-in-process) + (60% x Beginning work-in-process)
Equivalent units for ending work-in-process = (70% x 2,000 pounds) + (60% x 36,000 pounds)
Equivalent units for ending work-in-process = 1,400 pounds + 21,600 pounds
Equivalent units for ending work-in-process = 23,000 pounds.

Step 3: Calculate the total equivalent units:
Total equivalent units = Equivalent units for units started and completed + Equivalent units for ending work-in-process
Total equivalent units = 34,000 pounds + 23,000 pounds
Total equivalent units = 57,000 pounds.

Therefore, the equivalent units for the Compounding Department for August 2019 is 57,000 pounds.

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The packaging of hot dogs in sets of 8 and hot dog buns in sets of 6 or 8 can be attributed to a combination of historical reasons, market demand, and practical considerations.

The packaging of hot dogs and hot dog buns in different quantities can be attributed to historical reasons, market demand, and practical considerations within the food industry. While hot dogs commonly come in packages of 8, hot dog buns are often packaged in quantities of 6 or 8. Here are some possible reasons for this disparity:

Historical reasons: The tradition of packaging hot dogs in sets of 8 might have originated from historical practices or cultural norms. It could be a standard that has been followed for many years, while the packaging of buns has evolved separately based on different factors.

Market demand: Manufacturers typically consider consumer preferences and buying habits when determining packaging quantities. Hot dogs are commonly sold in packs of 8 because that is a common quantity for recipes, barbecues, and events. On the other hand, buns are typically sold in packs of 6 or 8 to match the consumer demand and to accommodate the common packaging quantities of hot dogs.

Practical considerations: Hot dog buns are usually softer and more prone to damage compared to hot dogs. Packaging buns in smaller quantities, such as 6, can help prevent squishing and ensure that the buns remain fresh and intact during transportation and handling.

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Answer:

4/9

Step-by-step explanation:

hi

(a) The stem-and-leaf display suggests that the data is positively skewed, so the mean will be greater than the median.

(b) The sample mean (x) is calculated to be 370.69 seconds, and the sample median (M) is calculated to be 370.50 seconds.

(c) The largest time can be increased or decreased by any amount without affecting the value of the sample median.

(d) When the observations are expressed in minutes, the minimum value is 5.87 minutes, and the maximum value is 7.05 minutes.

The stem-and-leaf display of the data is as follows:

Stems Leaves

32           9

33           5

35          2 4 5 8

36          1 2 4 7 9

37          2 4 6 7 9

38          1 6

39          0 4 6 9

40          4 7

41           None

42         3

The stem-and-leaf display suggests that the data is positively skewed, as there are more values concentrated on the lower end of the distribution and a few outliers on the higher end.

(b) To calculate the sample mean (x) and median (M):

The sample mean (x) is the average of the data points in the sample.

To calculate it, you add up all the values and divide by the total number of values.

x = 370.69

The sample median (M) is the middle value of the dataset when arranged in ascending order.

If there is an even number of values, the median is the average of the two middle values.

M = 370.50

(c) The sample median is not affected by changes to individual data points as long as they are not part of the middle value(s).

Therefore, the largest time (423) can be increased by any amount without affecting the value of the sample median.

Similarly, it can be decreased by any amount without affecting the sample median.

(d) To convert the observations from seconds to minutes, each data point is divided by 60 since there are 60 seconds in a minute.

The minimum value, when expressed in minutes, is calculated to be 5.87 minutes (rounded to two decimal places), and the maximum value is calculated to be 7.05 minutes (rounded to two decimal places).

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Answer:

Hello Arjun, The Answer Is 26.54 panels.

Explanation:

Dimensions of roof section: 7.2m By 4.4m

Area Of Roof: 7.2*4.4 = 31.68m²

Dimension of solar panels: 1400mm by 850mm

= 1400÷1000 by 850÷1000 = 1.4m by 0.85m

So We can say that: Area each solar panel = 1.4 * 0.85 = 1.19m²

The 30 CM Gap On All Edges Gives Us A Square Of Side = 30 Cm = 0.3 M

So, The Area Of Gap Left = 0.3*0.3 = 0.9m²

Now, The Total Area That Can Be Covered Is 31.68-0.9 = 31.59m²

So, Now we Divide The area remaining with the area of the solar panel that is: 31.59 ÷ 1.19m² = 26.54 Panels...

I Could Only Understand This Much  From The HW Ma'am Gave, So This Was My Answer...

Hope It Helps!

Based on the survey results, a typical parent would spend around $44 on their child's birthday gift, with a margin of error of approximately $2.9 at a 99% confidence level.

To estimate how much a typical parent would spend on their child's birthday gift, we use the sample mean and standard deviation as estimates of the population parameters. The sample mean of $44 serves as the point estimate for the population mean.

To determine the margin of error, we use the standard error, which is the standard deviation divided by the square root of the sample size. In this case, the standard error is approximately $2.5 (standard deviation of $10 divided by the square root of 20). Multiplying the standard error by the critical value corresponding to a 99% confidence level (z-value of 2.58 for a large sample size) gives us the margin of error.

Therefore, the typical amount spent on a child's birthday gift is estimated to be $44, with a margin of error of approximately $2.9. This means that we can be 99% confident that the true mean amount spent by parents falls within the range of $41.1 to $46.9.

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Answer:

x=8,m=-7,y=12,t=6

Step-by-step explanation:

for x you add three too bothe sides

for m you subtract 5 from both sides

for y you add three to both sides

for t you add ll too both sides

Answer:

180 balloons

Step-by-step explanation:

60 x 3 is 180

or 60+60 = 120 + 60 =180

Answer:

Pay per week: 350

Pay per month: 1400

Commission: 62,000 * 0.06 = 3720

so gross pay per month: 3720+ 350=4070

Answer:

Step-by-step explanation:

I think that Percents are used very commonly all around us every day. It gives us a better vision in our mind of the quantity than decimals or fractions. We see Percents everywhere. In the shopping mall for discounts, math homework and work. So overall, percents are most commonly used.

Hope that helps!

Answer:

Points B and C are opposite

Step-by-step explanation:

0 on the number line marks the center of the number line. To the right on the number line are positive integers and to the left from zero are negative integers.

Points B and C are opposite because they are each half way between 0 and 1 on the right and 0 and -1 on the left

Answer:

b and c are opposites

Step-by-step explanation:

other guy was right

The correct answer is (a), (b) and (d) are functions.

In a function, each element of the domain (A) must be paired with exactly one element in the range (B).

(a) {(a, 1), (b, 2), (c, 3)}: This is a function because each element of A is paired with exactly one element of B.

(b) {(a, 1), (b, 1), (c, 2)}: This is not a function because both a and b are paired with 1, violating the rule that each element of A must be paired with exactly one element of B.

(c) {(a, 1), (a, 2), (b, 3), (c, 4)}: This is not a function because a is paired with both 1 and 2, violating the rule that each element of A must be paired with exactly one element of B.

(d) {(a, 1), (b, 2)}: This is a function because each element of A is paired with exactly one element of B.

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Answer:120 nickels and 15 dimes

Step-by-step explanation:

8 is 4 times 2 so there should be 4 times as many nickels as quarters. 1 is half of 2 so there should be half as many dimes as quarters

Answer:

Mark me as brainliest ❤️

The value for the hotspots of the similar triangles ∆ABC and ∆PWR are:

(1). angle B = 68°

(2). PQ = 5cm

(3). BC = 19.5cm

(4). area of ∆PQR = 30cm²

Similar triangles are two triangles that have the same shape, but not necessarily the same size. This means that corresponding angles of the two triangles are equal, and corresponding sides are in proportion.

(1). angle B = 180 - (22 + 90) {sum of interior angles of a triangle}

angle B = 68°

Given that the triangle ∆ABC is similar to the triangle ∆PQR.

(2). PQ/7.5cm = 12cm/18cm

PQ = (12cm × 7.5cm)/18cm {cross multiplication}

PQ = 5cm

(3). 13cm/BC = 12cm/18cm

BC = (13cm × 18cm)/12cm {cross multiplication}

BC = 19.5cm

(4). area of ∆PQR = 1/2 × 12cm × 5cm

area of ∆PQR = 6cm × 5cm

area of ∆PQR = 30cm²

Therefore, the value for the hotspots of the similar triangles ∆ABC and ∆PWR are:

(1). angle B = 68°

(2). PQ = 5cm

(3). BC = 19.5cm

(4). area of ∆PQR = 30cm²

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If the demand for tomato juice falls, it means that consumers are buying less of it at any given price. This will result in a leftward shift in the demand curve, showing a decrease in quantity demanded at each price level.

As a result, the equilibrium price of tomato juice will decrease, and the equilibrium quantity of tomato juice sold in the market will also decrease. This shift in demand will also affect the producers of tomato juice, who may need to adjust their prices and output levels to match the reduced demand. Overall, a decrease in demand for tomato juice will lead to lower prices and lower quantities sold in the market.

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Answer:

nmn

Step-by-step explanation:

Answer:

The volume of the cone is;

Explanation:

Given the cone with diameter 8 feet and height 5 feet;

The volume of cone can be calculated using the formula;

Substituting the given values;

Therefore, the volume of the cone is;

#1

ATQ

\(\\ \sf\longmapsto 2x+7=87\)

\(\\ \sf\longmapsto 2x=87-7=80\)

\(\\ \sf\longmapsto x=\dfrac{80}{2}\)

\(\\ \sf\longmapsto x=40\)

Option B

#B

If numerator be n then denominator is 2n+1

For example

2nd term is 6/13

Where

Now

in the third term numerator is 8

Denominator:-

\(\\ \sf\longmapsto 2(8)+1=16+1=17\)

Option A

The total area of the solid figure is 90 square inches + 27sqrt(3) / 4 square inches.

To find the total area of the solid figure, we need to determine the areas of each face and then add them together.

The solid figure consists of a rectangular prism with dimensions 3" x 3" x 6" and a pyramid on top with an equilateral triangle base.

First, let's find the area of the rectangular prism. The rectangular prism has two identical square faces with side length 3" and four rectangular faces with dimensions 3" x 6". The total area of the rectangular prism can be calculated as:

Area of the square faces: 2 * (3" * 3") = 2 * 9 square inches

Area of the rectangular faces: 4 * (3" * 6") = 4 * 18 square inches

Total area of the rectangular prism: 2 * 9 + 4 * 18 = 18 + 72 = 90 square inches.

Next, let's find the area of the triangular pyramid. The base of the pyramid is an equilateral triangle with side length 3". The height of the pyramid is 3". The formula to find the area of an equilateral triangle is (sqrt(3) / 4) * (side length)^2. Plugging in the values, we have:

Area of the triangular pyramid: (sqrt(3) / 4) * (3" * 3") * 3" = (sqrt(3) / 4) * 9 * 3 = (sqrt(3) / 4) * 27 = 27sqrt(3) / 4 square inches.

Now, we can find the total area of the solid figure by adding the area of the rectangular prism and the area of the triangular pyramid:

Total area = Area of rectangular prism + Area of triangular pyramid

Total area = 90 square inches + 27sqrt(3) / 4 square inches.

Thus, the total area of the solid figure is 90 square inches + 27sqrt(3) / 4 square inches.

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When comparing means of three or more conditions, an analysis of variance (ANOVA) should be used instead of multiple t-tests. This is because using multiple t-tests increases the risk of a type I error, where a significant difference is found when there is none. ANOVA controls for this by using a single test to determine if there is a significant difference between the means. Additionally, using multiple t-tests increases the risk of a type II error, where a significant difference is not found when there is one.

ANOVA is also more likely to detect statistical significance between the means because it takes into account the variability within each condition as well as the variability between conditions. This increases the power of the test and reduces the chances of missing a significant difference between the means.

When using ANOVA, the results can indicate that there are no differences between any of the population means (option a), that at least one of the three population means is different from another population mean (option b), that all three of the population means are different from each other (option c), or that one population mean is different from one of the other population means, but not the other population mean (option d).

Finally, ANOVA provides a measure of effect size, typically reported as r2, which indicates the proportion of variability in the data that can be attributed to the differences between the conditions. This can be useful in determining the practical significance of the results.

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Answer:

Step-by-step explanation:

Tell him to not forget jill.

Creating a discussion question, evaluating prospective solutions, and brainstorming and evaluating possible solutions are steps in problem-solving.

What is problem-solving?

Problem-solving is the method of examining, analyzing, and then resolving a difficult issue or situation to reach an effective solution.

Problem-solving usually requires identifying and defining a problem, considering alternative solutions, and picking the best option based on certain criteria.

Below are the steps in problem-solving:

Step 1: Define the Problem

Step 2: Identify the Root Cause of the Problem

Step 3: Develop Alternative Solutions

Step 4: Evaluate and Choose Solutions

Step 5: Implement the Chosen Solution

Step 6: Monitor Progress and Follow-up on the Solution.

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All solutions in the interval [0, 2π) when cos x = sin x are π/4, and 7π/4.

Option (D) is correct

What is the trigonometric equation?

All possible values which satisfy the given trigonometric equation are called solutions of the given trigonometric equation.

The trigonometric equations involve trigonometric functions of angles as variables.

Given equation cos x = sin x

Divide by cos x on both sides

We get 1= sin x/ cos x

1 = tan x

\(x=tan^{-1}(1)\)

In the given interval [0, 2π), we have solutions as π/4 and 7π/4.

Hence, all solutions in the interval [0, 2π) when cos x = sin x are π/4, and 7π/4.

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Answer:

6x - 9 = y

x - (-1.5)

x - (-1.5) = y

Step-by-step explanation: