which model represents 3x+26=2(3+2x)

No, I do not agree that non-random sampling technique is equivalent to quota sampling, which appears to be similar to stratified random sampling.

While quota sampling and stratified random sampling both involve dividing the population into subgroups or strata, they differ in terms of the sampling process.

In quota sampling, the researcher sets specific quotas or targets for each subgroup based on certain characteristics, such as age, gender, or occupation. The sampling process involves non-random selection within each subgroup until the quotas are fulfilled. Quota sampling does not involve a random selection of participants within each subgroup, making it a non-random sampling technique.

On the other hand, stratified random sampling is a true random sampling technique. It also involves dividing the population into strata based on certain characteristics, but in stratified random sampling, the selection of participants within each stratum is done randomly. This random selection ensures that every member of the population has an equal chance of being included in the sample, which helps to reduce bias and increase the representativeness of the sample.

So, while both quota sampling and stratified random sampling involve dividing the population into subgroups, the key difference lies in the selection process. Quota sampling involves non-random selection within each subgroup, whereas stratified random sampling involves random selection within each stratum.

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Answer:

y =3x + 12

Step-by-step explanation:

Answer:

The answer is A

Step-by-step explanation:

105+90=5x-70

195+70=5x-70+70

\( \frac{265}{5} = \frac{5x}{5} \)

53=x and then when you insert to in the formula 5(53)-70 you get 195

and 105+90 is also equal to 195

Youre welcome!

Answer:

Slope: (y2-y1)/(x2-x1)

(4+2)/(-16-5) = 6/-21 = -2/7

Y = -2/7x + b

5 = -2/7(-2) + b, b = 31/7

Equation: y = -2/7x + 31/7

Step-by-step explanation:

Answer:

16 in

Step-by-step explanation:

4 +4+4+4 = 16

Answer:

16

Step-by-step explanation:

since perimeter is the length of all the sides added up, and the sides of a square are all equal, you just add up all the sides!

Answer:

See below

Step-by-step explanation:

You can always plug in x's and solve for y.

price per house : $250,000

number of houses: 9

To find how much he will earn (y) we have to multiply the price per house by the number of houses (x).

y = 250,000 x

Where x is the independent variable (number of houses) and y is the dependent variable (earnings)

Replacing x by the number of houses:

y = 250,000 ( 9) = $2,250,000

Answer:

Step-by-step explanation:

Use PEDMAS

12 ÷ 3*5 - 4² =  4 * 5 - 16          {First division should be performed}

                     = 20 - 16     {Now multiplication}

                     = 4   {Finally subtraction}

Answer:

0.875 or 7/8

Step-by-step explanation:

you divide 1/2, 1/4, 1/8 into their decimal form and you add them all up into 0.875 and you turn it into its fraction form and get 7/8

Answer:

Step-by-step explanation:

A bitmap is a digital image format that is made up of a grid of square colored dots called pixels.

Each pixel in the bitmap contains information about its color and position, which allows the computer to display the image on a screen or print it on paper. Bitmaps are commonly used for photographs, illustrations, and other complex images that require a high degree of detail and color accuracy.

However, because bitmaps store information for each individual pixel, they can be memory-intensive and may result in large file sizes. Additionally, resizing a bitmap can lead to a loss of quality, as the computer must either interpolate or discard pixels to adjust the image size.

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Mathematically, if a space of 2m can comfortably fit 6 students in a standing position, the maximum number of students that can be sent to stand in the naughty corner that is 36m² during devotion is 108.

The maximum number can be determined using the mathematical operation of multiplication and division.

Multiplication and division operations are two of the four basic mathematical operations, including addition and subtraction.

The area of the naughty corner = 36m²

The space that can comfortably fit 6 students in a standing position = 2m

The maximum number of students that can occupy 36m² in a standing position = 108 (36/2 x 6).

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There were 16 ounces of oil in the lantern at noon.

Let's start by defining the variables we know. We'll call the amount of oil in the lantern at noon "x," the rate at which the oil burns "r," and the time elapsed from noon to 2 pm "t." We know that the amount of oil in the lantern at 2 pm is 12 ounces, and at 4 pm, it's 8 ounces.

We can use the rate of oil burning to create an equation relating the amount of oil in the lantern to the time elapsed. The equation is:

x - rt = y

where "y" is the amount of oil in the lantern at any given time after noon. We can solve for "x" by plugging in the values we know at 2 pm:

x - 2r = 12

And at 4 pm:

x - 4r = 8

Now we have two equations with two variables. We can solve for "r" by subtracting the second equation from the first:

2r = 4

r = 2

Now we can plug in "r" to one of the equations to solve for "x." Let's use the first equation:

x - 2(2) = 12

x - 4 = 12

x = 16

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Answer:

0.64

Step-by-step explanation:

Find the number in the hundredth place  4  and look one place to the right for the rounding digit  1 . Round up if this number is greater than or equal to  5  and round down if it is less than  5 .

The option C is correct answer which is there is a 5% chance that the true likelihood of an unsatisfied customer will be less than 0.077 or greater than 0.138.

What is unsatisfied customer?

Consumer customers are "an expression of dissatisfaction on a consumer's behalf to a responsible party," according to the dictionary. It can also be positively stated as a complaint from a customer who provides proof of a fault with a good or service.

As given,

95% confidence interval gives you 95% confident that unsatisfied customer is in between 0.077 to 0.138.

that means 5% chance that unsatisfied customer is not between intervals.

So, we can say 5% chance that true likelihood of an unsatisfied customer will. be less than 0.077 or greater than 0.138.

Hence, the option C is correct answer.

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Standard form of y = 3x² -7x⁴+ 9 - x⁴ is y = - 8x⁴ + 3x²+ 9    

Standard form of y = (t-2)(t+1)(t+1) is   t³- 3t - 2.

The term "polynomials in standard form" can also refer to a polynomial written in the decreasing order of the power of the variable, which is known as the standard form of a polynomial.

In other words, the definition of a polynomial in standard form states that exponents or degrees must be written in decreasing order.

Here we have

1. y = 3x² -7x⁴+ 9 - x⁴

2. y = (t-2)(t+1)(t+1)    

We can write given expressions in standard forms as given below  

1. y = 3x² -7x⁴+ 9 - x⁴  

Add like terms

=> y = 3x² - 8x⁴ + 9

Rewrite the given terms in decreasing order of their powers

=> y = - 8x⁴ + 3x²+ 9    

2. y = (t-2)(t+1)(t+1)    

Multiply the given terms

=> (t - 2) [ (t+1)²]

=> (t - 2) [ t² + 2t + 1 ]  

=> t³ + 2t² + t - 2t² - 4t - 2 ]

=>  t³- 3t - 2

Therefore,

Standard form of y = 3x² -7x⁴+ 9 - x⁴ is y = - 8x⁴ + 3x²+ 9    

Standard form of y = (t-2)(t+1)(t+1) is   t³- 3t - 2.

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The null hypothesis for the test would be that there is no difference between the ratings for the existing coffee flavors and the newly introduced holiday flavor. The alternative hypothesis would be that there is a significant difference between the ratings.If the p-value of the test is less than the level of significance, the company can reject the null hypothesis and conclude that there is a significant difference between the ratings for the two sets of flavors. This would indicate that the holiday flavor is preferred more than the existing flavors and the company can introduce it as a new flavor for the holiday season.

The coffee company can use a hypothesis test for matched pairs in a situation where they want to compare the preferences of their customers for the existing coffee flavors with the newly introduced holiday flavor. By conducting a matched-pairs hypothesis test, the company can determine whether the holiday flavor is preferred more than the existing flavors.Matched-pairs hypothesis test is a statistical test used to determine the difference between two related variables. In this case, the related variables are the preferences of the customers for existing coffee flavors and the newly introduced holiday flavor. The test involves measuring the differences between the paired variables and determining whether the differences are significant enough to indicate a preference for one flavor over the other.
For instance, the coffee company can conduct a survey among its customers to determine their preferences for the different coffee flavors. The survey can involve asking the customers to rate the existing coffee flavors and the newly introduced holiday flavor on a scale of 1 to 10. The company can then compare the ratings for each customer to determine whether the holiday flavor is preferred more than the existing flavors.After collecting the data, the company can use a paired t-test to determine whether the differences in the ratings are significant.

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Answer:

Step-by-step explanation:

A perpendicular line will have a sope that is the negative inverse of the reference line.  The reference line is y = -3 + 4, with a slope of -3.  The negative inverse would be -(-1/3) or (1/3).

The new line will take the form of y = (1/3)x + b, where b is the y-intercept (the value of y when x=0).  We want the new line to go through point (-3,-7).  We;ll need a value of b that will make that happen.  To find b, enter the given data point and solve for b:

y = (1/3)x + b for (-3,-7).

-7 = (1/3)(-3) + b

-7 = -1 + b

b = -6

The new equation is y = (1/3)x - 6

See the attached graph.

Answer:

Option (1)

Step-by-step explanation:

From the given number line,

Arrow starts from x = 1 with a hollow circle and moves towards negative numbers.

Hollow circle represents the sign of less than (<) or Greater than (>).

And arrow towards negative numbers represents the sign of less than (<)

Therefore, x < 1 will be the answer.

Option (1) will be the correct option.

Answer:

Not possible

Step-by-step explanation

Range is the difference between the highest and lowest data value in a data set. It is used to define the spread on data on the graph. Higher the range higher will be spread of data.

Whereas median is the middle value(odd number of data values) or average of the middle values(even number of data values) in a data set.

Therefore, adding an additional data value will surely change range( increase in case, the value is higher than other values) at same time it will also effect the median of the data set. So, it not possible to add the data for an additional hike to the line plot so that the range increases but the median does not change

Answer:  The correct symbol is '<'.

Step-by-step explanation:

Given: In triangle GHJ

\(m\angle H=85^{\circ}\) and \(m\angle G=60^{\circ}\)

Here angle H is opposite to side JG and angle G is opposite to side HJ

We know that,

The side opposite to the greater angle of a triangle is greater.

Since \(m\angle H> m\angle G\)

Then, JG > HJ

Hence, HJ     <       JG

Answer:

Step-by-step explanation:

If you mean 3x^3 - 42x^2 - 4x + 5 = 0 you can graph it manually or with technology

The roots are 14.09, 0.30 and -0.39 to nearest hundredth.

Answer:

1/2

Step-by-step explanation:

It will be either heads of tails equally likely.

It’s still 1/2. Flipping a coin is an independent event. In other words, the outcome of the next flip is uninfluenced by what has happened previously. It’s as if it were the first time you ever flipped the coin. The probability is unaltered.

The order for 50 chain saws will be shipped at the start of week 8.As the manager, I will ensure that the assembly of the 50 chain saws begins at the start of week 6 to meet the shipping deadline at the start of week 8.

To determine the shipping date, we need to consider the production time for assembling the chain saws. Assuming a standard production time of 2 weeks, we can calculate the start date for production.

Start date for production = Shipping date - Production time = Week 8 - 2 weeks = Week 6

Therefore, the assembly of the chain saws should start at the beginning of week 6 in order to meet the shipping deadline at the start of week 8.

As the manager, I will ensure that the assembly of the 50 chain saws begins at the start of week 6 to meet the shipping deadline at the start of week 8. This will ensure that the order is fulfilled on time and the customer's expectations are met.

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Answer:

X=3

Step-by-step explanation:

First you can distribute the 4 to 2x-1 making is 8x-4

8x-4+2x+2=28

Now add like terms

8x+2x-4+2=28, 10x-2=28

Add 2 to both sides

10x=30

Divide both sides by 10

x=3

Answer:

14

Step-by-step explanation:

First, find out how many she had to distribute

96 - 12 = 84

Now divide 84 by the number of students

84/6=14

The coordinates of A' after the transformation are (-1, -4).

To find the coordinates of point A' after the described transformation, we need to perform two operations: translation and reflection.

1. Translation along the vector <-2, 3>:

To translate a point along a vector, we add the corresponding components of the vector to the coordinates of the point.

If the coordinates of point A are (x, y), the translated coordinates of A' will be (x - 2, y + 3).

2. Reflection in the x-axis:

To reflect a point in the x-axis, we negate the y-coordinate while keeping the x-coordinate the same.

Given that we have translated the point A by <-2, 3>, the new coordinates of A' after the translation are (x - 2, y + 3). To reflect A' in the x-axis, the final coordinates of A' will be (x - 2, -(y + 3)).

Comparing the given answer choices:

A. (1, -4)

B. (1, 4)

C. (-1, 4)

D. (-1, -4)

We can see that the correct answer is D. (-1, -4), as it matches the calculated coordinates of A' after the translation and reflection.

Therefore, the coordinates of A' after the transformation are (-1, -4).

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0.0076 is  the probability that the first 30 igniters tested do not fail .

What is probability in math?

The area of mathematics known as probability explores potential outcomes of events, along with the likelihoods and distributions of those occurrences.

a)if the failure rate for the super igniters is 15% then the probability that each igniter fails is 0.15,and the probability that it does not fail is 0.85.Therefore the probability that the first 30 igniters tested do not fail is       (0.85)30= 0.0076.

b)given that there are no failures in the first 30 tries,the probabilities occurs on 31st try is 0.15 and the probability that it does not occur on 31st but occurs on 32nd try is (0.85)(0.15)=0.1275.therefore the probability of one or the other is 0.15+0.1275=0.2775.

c)the result of the probability calculation in part(a) provides reason to believ the failure rate of the super igniters is less than 15%.The calculated proability of 0.0076 shows that there is less than a 1% chance that 30 or more igniters in a row would not fail if the failured rate was 15%.This probability is smaller than conventional significance levels such as alpha=0.05 and 0.01 and thus is small enough to make it reasonable to believe that the failure rate of the super igniters is less than 15%.

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The required work done in lifting the laptop to a height of 2 feet will be 263.79 foot-poundal.

Total weight of the laptop is 4.1 pounds

Acceleration due to gravity = 32.17 ft/\(s^{2}\)

Now the height to which the laptop has been lifted = 2 feet

Since, there is no mentioned velocity of the laptop, therefore the kinetic energy will be zero

Therefore, the total work in lifting the laptop will be equal to the change in potential energy.

Potential energy is the energy that comes by virtue of its position with reference to other

Therefore, potential energy = mgh

Where, m = mass of the laptop = 4.1 pounds

g = acceleration due to gravity = 32.17 ft/\(s^{2}\)

h = height to which the laptop is lifted =  2 feet

Therefore potential energy = (4.1)(32.17)(2) = 263.79 foot-poundal

263.79 foot-poundal is the required work done.

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To find f(g(x)), substitute g(x) into f(x). Simplifying gives f(g(x)) = log6(36g(x)). For range of y in f(x) + g(x), Take possible values . Since log6(36x) is defined for x > 0, and 6 is positive, the range of y is (0, ∞).

a) To find f(g(x)), we substitute g(x) into f(x):

f(g(x)) = f(6x) = log6(36(6x)) = log6(216x) = log6(6^3x) = 3log6(6x) = 3(log6(6) + log6(x)) = 3(1 + log6(x)) = 3 + 3log6(x).

Thus, f(g(x)) simplifies to 3 + 3log6(x).

(b) To find the range of y in f(x) + g(x), we need to consider the possible values of f(x) and g(x). Since log6(36x) is defined for x > 0, and 6* is always positive, the range of f(x) is (0, ∞). Similarly, g(x) = 6* is always positive, so the range of g(x) is also (0, ∞).When we add f(x) and g(x), we are adding two positive functions, resulting in values greater than 0. Therefore, the range of y in f(x) + g(x) is (0, ∞).

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