Which property is represented by the equation below? 1/3 + (2/3 + 1/7) = (1/3 + 2/3) + 1/7

Answer:

x=2

Step-by-step explanation:

vertical line so X is the same regardless Y values

so x=2

Answer: x=2

Step-by-step explanation:

The first case given is a deigned experiment and the second case is an observational study.

i. This is a designed experiment because the tunas were randomly assigned to two different treatments (polluted and non-polluted water) in an attempt to determine the effect of the treatment (methyl mercury) on the outcome (survival times). The experiment was intentionally designed and carried out to test a hypothesis.

ii. This is an observational study because the data was collected by simply observing the natural occurring relationship between increasing amounts of phosphorus in the lake and decreasing number of lake trout over time, without any manipulation or intervention by the biologist. The purpose is to describe or understand the relationship between two variables rather than to test a hypothesis.

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Lama paid $3,510 to Social Security and Medicare in 1990.

Earnings typically refer to the salary or wages received by an employee for their labor. It can also include bonuses, commission, and other forms of compensation.

Since Lama's earnings were below the threshold of $52,000, the 7.8% rate applied to all of her earnings. To calculate the amount she paid to Social Security and Medicare, multiply her earnings by the rate:

$45,000 x 7.8% = $3,510

So, Lama paid $3,510 to Social Security and Medicare in 1990.

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The volume of this cylinder is equal to 675 cm².

Mathematically, the volume of a cylinder can be calculated by using this formula:

Volume of a cylinder, V = πr²h

Where:

Substituting the given parameters into the volume of a cylinder formula, we have the following;

Volume of a cylinder, V = πr²h

Volume of a cylinder, V = 3 × 5² × 9

Volume of a cylinder, V = 3 × 25 × 9

Volume of a cylinder, V = 675 cm².

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Answer:4.62x10^13

Step-by-step explanation:

Answer:

Step-by-step explanation:

It seems we are looking for a math expression that is the same as English expression you wrote.The sum is what we get when we add numbers. Therefore, we could restate the English expression as what do we get when we add 5 to the number x? While we do not know what specific number x represents, we do know that if we add 5 to the number x we get 5 plus x. Now the question can be restated as, "How do we write 5 plus the number x?" Do you know the answer now? Does 5 + x sound right? How about x + 5? Both of these expressions are correct as they both represent the sum of 5 and the number x.

Answer:

see below

Step-by-step explanation:

15:25 divide each side by 5 & get 3:5

3+5 =8 so basically it's like 8 slices of pizza, girls get 3 slices, boys get 5,  

now we split the money.  640/8=80, so

girls get 3 x80 = 240

boys get 5x80 = 400

The price of a good decreases, the quantity demanded of those good increases. The downward slope of the demand curve reflects the law of demand, which states that people will buy more of a good when its price falls and less when its price rises.

The demand curve is a graphical representation of this relationship and shows the quantity of a good that consumers are willing and able to purchase at different prices.

An indifference bow is a graphical representation of different combinations or consumption bundles of two commodities. It issues equivalent satisfaction and utility levels for the consumer.

It makes the consumer indifferent to any of the union of goods shown as points on the curve. Also, it means the consumer cannot prefer one bundle over another on the same graph.

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The probability of getting an no head is 1/8 or 12.5%

A probability is a number that reflects the chance or likelihood that a particular event will occur. Probabilities can be expressed as proportions that range from 0 to 1, and they can also be expressed as percentages ranging from 0% to 100%.

Probability = sample space / total outcome

The total outcome of tossing a coin thrice is 8

The sample space of getting no head i.e (TTT) is 1

Therefore the probability of getting no head = 1/8

in percentage; 1/8 × 100 = 100/8 = 12.5 %

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Answer:

Step-by-step explanation:

i know

6.08 ounces of Ceylon tea and 1.92 ounces of Formosa tea must be mixed to produce a mixture of 8 oz worth $1.62/oz.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 3 = 7 is an equation.

We have,

Ceylon tea = x

Cost = $1.50

Formosa tea = y

Cost = $2

Now,

To produce a mixture of 8 oz worth $1.62/oz.

We can make two equations:

x + y = 8 _____(1)

1.50x + 2y = 12.96 ______(2)

From (1),

x = 8 - y

Substituting in (2).

1.50x + 2y = 12.96

1.50 (8 - y) + 2y = 12.96

12 - 1.50y + 2y = 12.96

0.50y = 12.96 - 12

y = 0.96/0.50

y = 1.92

And,

x = 8 - 1.92

x = 6.08

Thus,

6.08 ounces of Ceylon tea.

1.92 ounces of Formosa tea.

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From the information provided in this question, it is not possible to accurately determine the proportion of winning actresses who were between 30 and 40 years old when they won the Oscar or the shape of the distribution.

The histogram only provides the frequencies (proportions) of actresses at different age ranges (e.g. 0.39, 0.40, 0.41, 0.45), but it does not provide information about the actual ages or the number of actresses.

In order to determine the proportion of winning actresses within a specific age range, additional information such as the number of actresses in each age group or a plot of the actual ages would be necessary. Similarly, the shape of the distribution cannot be determined accurately based on the information provided, as the histogram only provides the frequencies.

Therefore, the information provided is not sufficient to answer the questions asked.

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Answer: Your answer is 2x2√7 (Please Mark Branliest)

Step-by-step explanation:

Step 1: Rewrite 28x4 as (2x2)2⋅7

Step 1.1: Factor 4 out of 28 which should get you √4(7)x4

Step 1.2: Rewrite 4 as 22 which should get you √22⋅7x4

Step 1.3: Rewrite x4 as (x2)2 which should get you √22⋅7(x2)2

Step 1.4: Move the 7 which should get you √22(x2)2⋅7

Step 1.5: Rewrite 22(x2)2 as (2x2)2 which sould get you √(2x2)2⋅7

Step 2: Pull terms out from under the radical to get yourself 2x2√7

Yes, the data provided can be used to provide convincing evidence that the true proportion of teens who think highly of their mother is greater than 0.84.

To determine if the data provides convincing evidence that the true proportion of teens who think highly of their mother is greater than 0.84, we need to perform a hypothesis test. Here is the basic process:

State the null and alternative hypotheses:

Null Hypothesis: The true proportion of teens who think highly of their mother is equal to 0.84 (p = 0.84)

Alternative Hypothesis: The true proportion of teens who think highly of their mother is greater than 0.84 (p > 0.84)

Select the level of significance: A commonly used level of significance is 0.05, meaning that we are willing to accept a 5% chance of making a type I error (rejecting the null hypothesis when it is true).

Compute the test statistic and p-value: The test statistic is the z-score and can be calculated using the formula:

z = (x - p) / sqrt(p(1-p) / n)

where x = number of positive responses in the sample = 135

p = proportion claimed in the statement = 0.84

n = sample size = 150

Make a decision: Compare the calculated p-value with the level of significance. If the p-value is less than the level of significance (0.05), reject the null hypothesis. If the p-value is greater than the level of significance, fail to reject the null hypothesis.

Draw a conclusion: If the null hypothesis is rejected, conclude that the data provides convincing evidence that the true proportion of teens who think highly of their mother is greater than 0.84. If the null hypothesis is not rejected, conclude that the data does not provide convincing evidence that the true proportion is greater than 0.84.

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When, he has 106 pieces of candy and wants to use them all 9 red bags can he make.

Division is the process of splitting a number or an amount into equal parts.

Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.

here, we have,

a blue bag contains 7 pieces of candy while a red bag contains 13 pieces of candy.

if he has 106 pieces of candy.

red bags can he make = 106/13

                                      =8+ remainder 2

so, if he wants to use all in red bag,

then he has to make red bag = 8+1

                                                 =9 bags

Hence, if he has 106 pieces of candy and wants to use them all 9 red bags can he make.

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The cost of each shirt Bobby and Davonte bought if they both spent $145.20 on 11 shirts is $13.2

Total number of shirts bobby and Davonte bought = 11

Amount Bobby spent on shirts= $92.40

Amount Davonte spent on shirts= $52.80

Total amount both spent= $92.40 + $52.80

= $145.20

Cost of each shirt= Total amount both spent / Total number of shirts bobby and Davonte bought

= $145.20 / 11

= $13.2

Therefore, each shirt Bobby and Davonte bought cost $13.2

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Answer:

[tex]\frac{7}{20}[/tex] = [tex]\frac{14}{40}[/tex]

Step-by-step explanation:

We know

Joe can eat 7 hot dogs in 20 minutes.

How long would it take him to eat 14 hot dogs?

We see that the number of hot dogs is now doubled, so we double the 20 minutes too.

So, the answer is

[tex]\frac{7}{20}[/tex] = [tex]\frac{14}{40}[/tex]

The answer that gives the best estimate for the number of hours she worked that week would be = 11.25x+30=159.5

The normal amount she earns per hour in a week = $11.25 per hour.

The extra cash she earned during the week = $30

The total amount she received during the week = $159.50

Let the number of hours she worked = X

Therefore, 11.25x+30=159.5 show the number of hour she worked per week.

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Complete question:

Jovana makes $11.25 per hour at her part-time job. During one week, she also earned $30 in tip money, and her final pay for the week was $159.50. Which answer gives the best estimate for the number of hours she worked that week?

11.25+30=159.5x

11.25x + 30x=159.5

11.25x+30=159.5

11.25x+30=159.5x

The correct answer is B) the graph of g is a 1/3 horizontal shrink of the graph of f.

A mathematical transformation is the movement of a geometric object or function from one space to another. This new space may be a new quadrant in a Cartesian coordinate system, or it could be a whole new plane or number set. When we translate, we move a figure in any direction. When we flip a figure over a line, we call this reflection. When we rotate a figure a given amount around a point, we call this rotation. Transformations are classified into four types: translation, rotation, reflection, and dilation. Rotation, translation, and reflection are examples of stiff transformations.

Here,

The function g(x) = f(3x) is defined as the transformation of f(x) by replacing x with 3x in the argument of f. This means that each x-value of f(x) is replaced with 3 times its original value in g(x). As a result, the graph of g(x) will be a horizontal shrink of the graph of f(x) by a factor of 1/3. The horizontal axis will be compressed, making the graph appear narrower than the graph of f(x).

The correct answer is B) the graph of g is a horizontal shrink of the graph of f by a factor of 1/3.

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The  total distance traveled by the "super ball" is 49 meters.

1. First bounce: The ball drops from 16 meters above the ground and rises to [tex]\(\frac{3}{4}\)[/tex] of that height.

Distance traveled in the first bounce:

[tex]\[16 + \frac{3}{4} \times 16\][/tex]

2. Second bounce: The ball drops from the new height and rises to [tex]\frac{3}{4}\)[/tex] of that height.

Distance traveled in the second bounce:

[tex]\[\left(\frac{3}{4} \times 16\right) + \frac{3}{4} \times \left(\frac{3}{4} \times 16\right)\][/tex]

3. Third bounce: The ball drops from the new height and rises to [tex]\(\frac{3}{4}\[/tex] ) of that height.

Distance traveled in the third bounce:

[tex]\[\left(\frac{3}{4} \times \left(\frac{3}{4} \times 16\right)\right) + \frac{3}{4} \times \left(\frac{3}{4} \times \left(\frac{3}{4} \times 16\right)\right)\][/tex]

Now, the total distance traveled

[tex]\[ \text{Total distance traveled} = \left(16 + \frac{3}{4} \times 16\right) + \left(\frac{3}{4} \times 16 + \frac{3}{4} \times \left(\frac{3}{4} \times 16\right)\right)[/tex]

                                         [tex]+ \left(\frac{3}{4} \times \left(\frac{3}{4} \times 16\right) + \frac{3}{4} \times \left(\frac{3}{4} \times \left(\frac{3}{4} \times 16\right)\right)\right) \][/tex]

[tex]\[\text{Total distance traveled} = 16 + 12 + 9 + \frac{27}{4} + \frac{81}{16}\][/tex]

[tex]\[\text{Total distance traveled} = 16 + 12 + 9 + \frac{27}{4} + \frac{81}{16}[/tex]

                                       [tex]= 16 + 12 + 9 + \frac{108}{16} + \frac{81}{16} \][/tex]

[tex]\[\text{Total distance traveled} = 16 + 12 + 9 + \frac{108 + 81}{16}[/tex]

                                    [tex]= 16 + 12 + 9 + \frac{189}{16} \][/tex]

Add the whole numbers and fractions separately:

[tex]\[\text{Total distance traveled} = 37 + \frac{189}{16}\][/tex]

Now, convert the improper fraction to a mixed fraction:

[tex]\[ \frac{189}{16} = 11\frac{13}{16} \][/tex]

Finally, add the whole number and the mixed fraction:

[tex]\[ \text{Total distance traveled} = 37 + 11\frac{13}{16} \][/tex]

So, the total distance traveled by the "super ball" is :

[tex]\[ \text{Total distance traveled} = 37 + 12 = 49 \text{ meters} \][/tex]

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The maximum probability of victory in this scenario is 50%.

Each player has an equal chance of rolling any number from 1 to 6, so the probability of rolling a specific number is 1/6.

The probability formula is defined as the possibility of an event to happen is equal to the ratio of the number of favourable outcomes and the total number of outcomes.

Since the players cannot see their own outcome but can see the outcome of the other player, they must guess their own roll based on the observed roll of the other player. If the two players roll different numbers, one of them will have the correct guess, and their probability of winning is 1/6.

If the two players roll the same number, then both players have the same information and the probability of either player winning is still 1/6.

The maximum probability of victory is (1/6) + (1/6) = 1/3 + 1/3 = 2/3 = 50%.

Therefore, the probability is 50%.

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As variability shows the degree to which a particular score (or set of scores) accurately captures the distribution as a whole, it plays a significant role in sampling.

The sampling variability is the degree to which estimates vary among samples. The range is another word for "variability," and it describes how different samples have different ranges of results.

A sampling error is a phrase that's similar to, almost a synonym for, an error. An error in sampling is a measurement of how far a value deviates from its "true" value rather than an error itself. The various inaccuracies are a reflection of the sampling variability or variation between your samples.

The variability of samples fluctuates as sample sizes are raised or lowered. The sample size that will provide you with reliable estimates of the sample mean, variance, and other statistics is not the "ideal" sample size. Instead, you use your best estimation, which is based on accepted statistical practices.

Estimates will typically vary from sample to sample and are unlikely to ever completely match the population parameter.

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The time it takes for gaussian elimination to work on a system of equations is directly related to the number of equations in the system.

Gaussian elimination is a method used in linear algebra to solve systems of linear equations. It involves manipulating the coefficients of the equations in a specific way so that the solution is easier to find.

When comparing a system of 1000 equations to a system of 500 equations, the time it takes for gaussian elimination to work on the larger system is significantly longer.

This is because the number of operations required to solve the system increases as the size of the system increases.

To be more specific, the number of operations required for gaussian elimination is proportional to the square of the number of equations in the system.

This means that if a system of 500 equations requires 1000 operations, a system of 1000 equations would require 2000 operations.

So, we can expect gaussian elimination to take about twice as long to work on a system of 1000 equations compared to a system of 500 equations.

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The probability of choosing a three digit number whose sum is 3 is given by the equation P = 0.00666

The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible

Probability = number of desirable outcomes / total number of possible outcomes

The value of probability lies between 0 and 1

Given data ,

Let the number of three digits number be represented as n

Let the probability of choosing a three digit number whose sum is 3 be P

Now , the number of three digits number whose sum is 3 is given by set A

Set A = { 102 , 120 , 111 , 201 , 210 , 300 }

Now , the total number of 3 digits numbers is n = 900

So , the probability of choosing a three digit number whose sum is 3 P = number of three digits number whose sum is 3 / total number of 3 digits numbers

The probability P = 6/900

On simplifying the equation , we get

The probability P = 1/150

The probability P = 0.00666

Hence , the probability is P = 0.00666

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The population of Pakistan is calculated as; 1.82 × 10⁸

The parameters for the population are;

Japan Population; J = 1.30 × 10⁸

Brazil Population; B = 1.95 × 10⁸

Now, the ratio of J:B = x : x + 5

Thus;

(1.30 × 10⁸)/(1.95) × 10⁸ = x/(x + 5)

Solving this gives x = 10

Now, we are told that;

J:P = x : x + 4

Where P is pakistan population

Thus;

(1.30 × 10⁸)/P = 10/(10 + 4)

(1.30 × 10⁸)/P = 10/14

P = 14(1.30 × 10⁸)/10

P = 1.82 × 10⁸

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The angle measure of n is 74°.

When two lines or rays intersect at a single point, an angle is created. The vertex is the term for the shared point. An angle measure in geometry is the length of the angle created by two rays or arms meeting at a common vertex.

Given:

An irregular pentagon is shown below.

The sum of the exterior angles of a polygon is 360°.

So,

n + 72 + 39 + 85 + 90 = 360

n = 360 - 286

n = 74°

Therefore, the angle measure of n is 74°.

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A declared limit to the number of impressions that will be made from a particular plate (or matrix) is known as an "impression limit".

An "impression limit" is a predetermined maximum number of times that a printing plate (also known as a matrix) can be used to make an impression on the printing material before it becomes worn and less effective. The purpose of setting an impression limit is to ensure consistent, high-quality printing results.

A printing plate is typically made of metal, plastic, or rubber and is used to transfer an image or text onto paper or another printing surface. Each time the plate makes an impression on the printing material, a small amount of wear and tear occurs, causing the plate to degrade over time.

To prevent this degradation, an impression limit is set for each plate. This limit specifies the maximum number of times that the plate can be used before it needs to be replaced. The impression limit helps to ensure that each plate is used for a specific number of impressions only and then replaced, which helps to ensure consistent, high-quality printing results.

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To solve logarithmic equations with multiple bases, transform them to logarithms with a single basis and then isolate the variable using logarithmic characteristics.

An equation is a formula in mathematics that expresses the equivalence of two expressions by linking them with the equals symbol =. In its most basic form, an equation is a mathematical statement that indicates that two mathematical expressions are equal. 3x + 5 = 14, for example, is an equation in which 3x + 5 and 14 are two expressions separated by a 'equal' sign. An equation is made up of multiple components, including words, coefficients, exponents, arithmetic operators, equal signs, and constants.

Here,

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The height of the tree is 5.4 meters.

Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression for some number of times.

Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.

Given:

The picture shows a man next to a tree.

The man has a height of 1.8 meters.

The man and the tree are drawn to the same scale.

The height of the tree = 1.8 x 3 = 5.4 meters

Therefore, the height is 5.4 meters.

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Answer:7.2

Step-by-step explanation: as the man is 1.8 you can see that if you add on top of him 4 more in total that would be the height of the tree so the calculation would be 1.8x4 which would be 7.2