Brianne needs to buy a plane ticket and new backpack for her European trip. She got tired of living with her twin sister and needed a break so she's going to just go. She only had $40 left over from Xmas and Birthday money and needs a total of $1500 for the airfare, $150 for the backpack she wants, and about another $1000 for spending money. She leaves in 5 months! She realized that she needs a job for this so she got a job at Porto's making empanadas as well as doing extra chores around the house for $50 a week. She makes $1200 a month now. How much should she save each month? If she wanted to leave in 3 months, how much would she have to save?

Answer:

C

Step-by-step explanation:

The answer is C, 12 and 13, because the exact square root of 156 is about 12.5. On a number line, 12.5 is in between 12 and 13. Hope this helps, good luck, and God bless!

Freud is a stage theorist. Sigmund Freud, the renowned Austrian neurologist and psychoanalyst, is widely recognized as one of the pioneers in the field of psychoanalysis.

He proposed a developmental theory that included psychosexual stages of development. According to Freud, human development progresses through distinct stages, each characterized by a specific focus on different erogenous zones. These stages include the oral stage, stage, phallic stage, latency stage, and genital stage. Freud believed that the way individuals navigate these stages influences their personality and psychological well-being in adulthood.

Although Freud's stage theory has been critiqued and modified over time, his ideas regarding the importance of early childhood experiences and unconscious processes have had a profound impact on psychology and continue to shape our understanding of human development.

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2(3x + 7) + (2x - 3) =

= 6x + 14 + 2x - 3 =

= 6x + 2x + 14 - 3 = 8x + 11 ← the end

A 95% confidence interval estimate of , the mean procrastination scale for first-year students at this college is between 34.881 and 38.919.

We know that:

Sample size (n) = 65

Sample mean (x) = 36.9

Sample standard deviation (s) = 6.41

Confidence level = 95%

Degrees of freedom = n - 1 = 64

To calculate the confidence interval, we use the formula:

CI = x ± tα/2 * (s/√n)

where tα/2 is the t-score with (n-1) degrees of freedom and α/2 = (1 - confidence level)/2.

Using a t-table or a calculator, we find that tα/2 for a 95% confidence level and 64 degrees of freedom is 1.997.

Plugging in the values, we get:

CI = 36.9 ± 1.997 * (6.41/√65)

Simplifying the expression, we get:

CI = (34.881, 38.919)

Therefore, we can be 95% confident that the true mean procrastination scale for first-year students at this college falls between 34.881 and 38.919.

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The domain and the range of the function are (-∝, ∝) and (0, ∝), respectively

From the question, we have the following parameters that can be used in our computation:

The graph

The above graph is an exponential function

The rule of an function is that

The domain is the set of all real values

In this case, the domain is (-∝, ∝)

For the range, we have

Range = (0, ∝)

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The percentage statement is 9.5 is 19% of 50

From the question, we have the following parameters that can be used in our computation:

9.5 is what % of 50

Complete the blank with x

So, we have the following representation

9.5 = x% of 50

So, we have

9.5 = x% * 50

Divide both sides by 50

0.19 = x%

Multiply both sides by 100

So, we have

x = 19

Hence, the solution is 19

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Work Shown:

r = 6 = radius

V = volume of a sphere of radius r

V = (4/3)*pi*r^3

V = (4/3)*pi*6^3

V = 904.77868423386

V = 904.8

I used my calculator's stored version of pi (instead of something like pi = 3.14)

The units "cubic meters" can be abbreviated to m^3 or \(m^3\)

The volume of the given sphere is 904.8 cubic meters. Thus, option B is the answer.

         The volume of a sphere can be calculated using the formula:

V = \(4/3 * \pi * r^3\),

Where V is the volume and r is the radius of the sphere.

\(\pi\) = 3.14

The radius of the sphere (r) = 6m

Plugging in the given radius of 6m into the formula, we get:

V = (4/3) * \(\pi\) * (6^3)

V = 1.333 * \(\pi\) * 216

V = 1.333 * 3.14 * 216

V = 4.1866 * 216

V = 904.8 cubic meters

Therefore, when the radius of the sphere is 6m, the volume of the sphere is 904.8  cubic meters.

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Therefore, the accumulated present value of an investment is $53,333.33.

Given,

Money flow of $3200 per year.

Interest rate of 6%Compounded continuously.

To find,

The accumulated present value formula to calculate the accumulated present value of an investment in continuous compounding is given by;

A = (C / r)

Where, A = Accumulated present value of an investment

C = Continuous payment

R= Continuous interest rate

Substitute the given values in the above formula;

A = (3200 / 0.06)

= 53333.33

Therefore, the accumulated present value of an investment is $53,333.33.

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Answer:

9

Step-by-step explanation:

I think 9 is the answer because the person needs 18 gallons of green and has only 2 of yellow

Given:

Let's simplify.

Therefore, r ≈ 2.82.

Hoped this helped.

Answer:

r= 5/√  π

or

r=2.820948 or simplified =2.82

​

Step-by-step explanation: it could be either one of these

khan academy

khan academy is a site used for students to learn

Answer:

127 is the IQR.

Step-by-step explanation:

C: 4

IQR (interquartile range) can be found by subracting Q1 from Q3 (Q3 - Q1)

Reposting because Katie from the Brainly staff seems to think simple subtraction is a violation of community guidelines ¯\_(ツ)_/¯

Polynomials can be simplified by applying the distributive property to multiply the term outside the parentheses by everything inside the parentheses.

The highest degree of terms is written first, followed by the next degree, and so on, to represent a polynomial in standard form. The standard form of the polynomial is f(x) = anxn + an-1xn-1+an-2xn-2+.....+a1x+a0

An expression made up of variables, constants, and exponents that are joined together via mathematical operations is referred to as a polynomial.

A polynomial must be simplified in two ways: Firstly, combine similarities, and secondly, rewrite the terms in descending order of exponent. A polynomial can be written in standard form. To write any polynomial in standard form, consider the degree of each term. Then, from highest to lowest, left to right, you write each term in order of degree.

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Answer:

Step-by-step explanation:

So bascially decay means shrinks or shrivels. Growth means like growing, bigger, sort of like a happy plant :D.

To find if this is getting bigger or is shrinking, lets plug in something simple like 1 for the time(t). Sooo:

20,000*.88^1

Since its a 1 exponent it does nothing so:

20,000*.88

Now this is 17600 you can use calculator but if you do this in head like me all I did is multiply 88 by 2 which was simply since 8 times 2 is 16 so 160+16 is 176 then I added zeros:

y=17600

As we can see this is smaller than 20,000, so it is a decaying problem.

By what percent tho.

Well this is pretty easy to reconize once you understand where to find it.

When they talk about percentage, they mean how much it decreased by.

This is 100%-the multiplyied value.

In this case the multiplyed value is 0.88, sooo:

100%-88%=18%

So the percent amount that the value decreased by is 18%.

Hope this helps!

Answer:

Please check the format of the equation in the question.

Step-by-step explanation:

7x (5-98) ^4 = x +2

I will assume that the x in "7x" is the variable x, and not the multiplication sign.  The expression (5-98)^4 is a bit odd, so please check.  I'll assume it is correct.

7x (5-98) ^4 = x +2

7x (-93) ^4 = x +2

7x (74805201) = x +2

523636407x = x+2

523636406x = 2

x = 2/(523636406)

This seems to be an extraordinarily odd number, but that's the solution to

7x (5-98) ^4 = x +2

The value of function H(x) at x = -4 is 16, at x  = -3 is -13, at x = 2 is 2, at x = 3 is 5, and at x = 5 is 11.

The function is a relationship between a set of potential outputs and a set of possible inputs, where each input has a single relationship with each output.

Given:

H(x) = 3x - 4

Calculate the value of the function when x = -4 as shown below,

H(x) = 3 × (-4) - 4

H(x) = -12 - 4

H(x) = 16

Calculate the value of the function when x = -3 as shown below,

H(x) = 3 × (-3) - 4

H(x) = -9 - 4

H(x) = -13

Calculate the value of the function when x = 2 as shown below,

H(x) = 3 × 2 - 4

H(x) = 6 - 4

H(x) = 2

Calculate the value of the function when x = 3 as shown below,

H(x) = 3 × 3 - 4

H(x) = 5

Calculate the value of the function when x = 5 as shown below,

H(x) = 3 × 5 - 4

H(x) = 11

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Answer:

0.35 km per minute, 7 km in 20 minutes

Step-by-step explanation:

1 hr = 60 minutes

21 km per 60 minutes = 21/60 = 0.35 km per minute

In 20 minutes: 0.35*20 = 7 km

In an inverse variation, the relationship between two variables can be expressed as y = k/x, where k is the constant of variation.

To find the value of y when x = 15, we can use the given data point (x = 23, y = 8) to find the value of k:

y = k/x

8 = k/23

\(k = 8 * 23 = 184\)

Now we can substitute the value of k and the new value of x into the equation to find y:

\(y = 184/15 ≈ 12.27\) (rounded to 2 decimal places)

Therefore, when x = 15, y is approximately 12.27.

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For five-number summary for the distribution as Q1 is 39, it follows that around 75% of the states have cigarette taxes higher than 39 cents.

A list of numerical data is divided into three quarters by the values known as quartiles. The middle of the three quarters measures the distribution's center point and displays data that are close to it. Only half of the data set, which is below the median, is shown in the lower part of the quarters, while the upper half, which is above the median, is shown in the upper part. In all, the quartiles depict the distribution or dispersion of the data set.

When the data are sorted in ascending order, Q1, or the lower quartile, is the data point below which 25% of the data lie or above which 75% of the data lie. In other words, the lower quartile is greater than 25% of the data or less than 75% of the data.

As Q1 is 39, it follows that around 75% of the states have cigarette taxes higher than 39 cents.

ii) When the data are sorted in ascending order, the Q3 or upper quartile is the data point above which 25% of the data lie or below which 75% of the data lie. In other words, the data in the top quartile either make up more than 75% or less than 25% of the total data.

Q3 being 103 signifies that 25% of the states have cigarette taxes that are more than 103 cents.

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20 ÷ 1 + 4 on the board is 36 ÷ 3 • 2 + 1 36 ÷ 3 • 2 + 1.According to the order of operations, you should execute addition and subtraction last and multiply and division first, proceeding from left to right

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Answer:

I believe its the 1st answer.

Answer:

x + 6y + 7

hope this can help:)

Answer:

x+6y+7 this is the right answer

Step-by-step explanation:

4x-3x=x

x+6y+7

Answer:

x ≈ 2879.4 m

Step-by-step explanation:

Measure of ∠DAC = 10°

Measure of ∠DAB = 90°

Measure of ∠BAC = 90° - 10° = 80°

By applying cosine rule in ΔABC,

cos(80°) = \(\frac{\text{Adjacent side}}{\text{Hypotenuse}}\)

              = \(\frac{AB}{AC}\)

0.17365 = \(\frac{500}{x}\)

x = \(\frac{500}{0.17365}\)

x = 2879.36

x ≈ 2879.4 m

The original cost of the tablet is $70.89 in the given algebraic equation.

A mathematical claim containing two equated algebraic expressions is known as an algebraic equation. When P and Q are polynomials, an algebraic equation has the general form P = 0 or P = Q. The term "multivariate equation" refers to an algebraic equation that has more than one variable.

Univariate equations are algebraic equations that only have one variable. Equations in algebra are balanced by definition. Due to this, the right and left sides of the equation will be equal.

Let the original cost be  x

then

15/100 = 24.99.x

x =  166.6

237.49 - 166.6

= $70.89

Thus, the original cost of the tablet is $70.89 in the given algebraic equations.

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Full question?

Lucas bought a tablet that was on sale at a 15% discount on your supra case for $24.99 which is been a total of $237.49. Write an equation to find the original cost of the tablet?

More volatility in returns produces a larger difference between the arithmetic and geometric averages.

This is because the arithmetic average calculates the simple average of returns over a period, whereas the geometric average considers the compounding effect of returns.

When returns are volatile, meaning they fluctuate significantly, the arithmetic average tends to overstate the actual compounded growth rate. This is because the arithmetic average assumes that returns are constant over time, which is not the case when there is volatility. On the other hand, the geometric average accounts for compounding by calculating the average rate of return that would produce the same ending value as the actual returns.

The larger the volatility in returns, the more the actual returns deviate from being constant, and the greater the difference between the arithmetic and geometric averages becomes. This is because the geometric average takes into account the compounding effect of different returns over time, resulting in a more accurate representation of the actual growth rate. In contrast, the arithmetic average treats each return equally and does not consider compounding, leading to a higher average.

Therefore, more volatility in returns leads to a larger difference between the arithmetic and geometric averages.

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Based on the information, we can determine convergence or divergence of series.The given options do not provide a clear representation of potential outcomes.It is not possible to select correct option.

The given series is "nvž enn |||-) En=12 100 1-) Σπίο 3* 2"-1 ||-) En=2 n". In the series, we have the characters "nvž enn |||-)" which indicate the series notation. The characters "En=12 100 1-" suggest that there is a summation of terms starting from n = 12, with 100 as the first term and a common difference of 1. The characters "Σπίο 3* 2"-1 ||-) En=2 n" indicate another summation, starting from n = 2, with a pattern involving the operation of multiplying the previous term by 3 and subtracting 1.

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Answer:

1522km^2

Step-by-step explanation:

To solve this, first convert the percentage to a decimal. That would be .0475.

Now subtract that from 1.0 to get the factor it decreases by. This would be 1-.0475 = .9525

Multiply 2600 x (.9525)^11 = 1522.258 which rounds to 1522 km^2

Answer:

The area will be 1292.98 km² after 11 years.

Step-by-step explanation:

To find what decreases by 4.57% each year in kilometers:

2600 × 4.57/100 = 26 × 4.57

= 118.82 km²

To find the area after 11 years:

118.82 × 11 = 1307.02

2600 - 1307.02 = 1292.98 km²

1292.98 km² is the answer.

The salaries of 50 engineers in Houston compared with the salaries of 50 engineers in San Diego describe data from two separate populations.

What is data in survey ?

Data in a survey refers to the information that is collected from the individuals or groups that participate in the survey. This data can include responses to questions asked in the survey, demographic information about the participants, and any other relevant information that is gathered as part of the survey. The data collected from a survey is typically used to analyze trends, identify patterns, or draw conclusions about the attitudes, beliefs, behaviors, or characteristics of the population being surveyed. The data can be analyzed quantitatively, using statistical methods to identify trends or patterns, or qualitatively, using a more subjective approach to interpret the responses and identify themes or insights.

To read and interpret data, you will need to follow these basic steps:

Understand the context: Before looking at the data, it is important to understand the context in which it was collected. This includes understanding what the data represents, how it was collected, and who or what it represents.

Review the data: Once you understand the context, review the data to identify any patterns or trends that are present. Look for patterns in the data, such as increases or decreases over time, or relationships between different variables.

Analyze the data: Use statistical or analytical techniques to further analyze the data and identify any significant patterns or relationships that may not be immediately apparent. This can involve using charts, graphs, or statistical methods to identify trends and patterns in the data.

Draw conclusions: Based on your analysis of the data, draw conclusions about what the data represents and what it can tell you about the population being studied. This may involve making predictions or recommendations based on the data.

Communicate findings: Finally, communicate your findings to others in a clear and concise manner. This may involve creating charts or graphs to visually represent the data or writing a report that summarizes your findings and recommendations.

Overall, reading and interpreting data requires a combination of critical thinking, analytical skills, and a thorough understanding of the context in which the data was collected.

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The area of the rectangle is 17 square units.

The area of a rectangle is the product between the two dimensions (length and width) of the rectangle.

Here we know that the vertices are:

A(-1, 9), B(0, 9), C(0, -8), D(-1, -8)

We can define the length as the side AB, which has a lenght:

L = (-1, 9) - (0, 9) = (-1 - 0, 9 - 9) = (-1, 0) ----> 1 unit.

And the width as BC, which has a length:

L = (0, 9) - (0, -8) = (0 - 0, 9 + 8) = (0, 17) ---> 17 units.

Then the area is:

A = (1 unit)*(17 units) = 17 square units.

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