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The value for which the proportion of observations below it is equal to the proportion of observations above 115 is 85.

The normal distribution, also known as the Gaussian distribution or the bell curve, is a continuous probability distribution that describes the distribution of many real-world phenomena such as height, weight, IQ scores, and financial returns. It is a symmetric distribution with a bell-shaped curve that is centered on the mean and characterized by its mean and standard deviation.

Since the normal distribution is symmetric about the mean, the proportion of observations above 115 is equal to the proportion of observations below 100 - (115 - 100) = 85.

So, the value for which the proportion of observations below it is equal to the proportion of observations above 115 is 85.

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The probability of not ordering nonalcoholic beverages is 66.

Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

Probability = Number of favourable outcomes / Number of samples

Given that at a Noodles & Company restaurant, the probability that a customer will order a nonalcoholic beverage is 44%.

The probability of not ordering the beverages will be:-

P = 100% - 44%

P = 66%

Therefore, the probability of not ordering nonalcoholic beverages is 66.

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Answer:

33.33%

Step-by-step explanation:

amount of sugar at first 6x

now 4x

difference 2x,(6x-4x)

"ratio=2/6"

change in percentage:2/6×100%=33.33%

The mean is sensitive to outliers and will not accurately represent the center of the data if the distribution is significantly skewed.

The mean is a measure of central tendency that is calculated by adding up all values in a dataset and dividing by the number of values. It is often used as a measure of average since it takes into account all values in the dataset. However, it is an inappropriate measure of central tendency when the data distribution is severely skewed. A skewed distribution is one in which the data is not distributed evenly around the mean, and the data is either concentrated in the lower or higher end of the range. Since the mean is sensitive to outliers, it will be greatly affected by these values and not accurately represent the center of the data. In this case, it is more appropriate to use the median as a measure of central tendency since it is not affected by outliers. The median is the middle value of a dataset when the data is sorted from smallest to largest and is a better representation of the true center of the data in a skewed distribution.

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Answer: x = 3

Step-by-step explanation: just isolate the variable x

So subtract 12 on both sides of the equation and you are left with x is equal to 3

Hope this helped

After 1 year of time period, Ana would have $1051.7 in her account, including interest.

Ana opened a bank account with $1000 that earns interest, compounded continuously, at an annual rate of r. To calculate the amount of money in the account after t years, we can use the formula:

[tex]A = P * e^{(rt)}[/tex]

where A is the amount in the account after t years, P is the initial deposit (in this case, $1000), r is the annual interest rate, and e is the mathematical constant approximately equal to 2.718.

For example, if the interest rate is 5% (r = 0.05), after 1 year, the amount in the account would be:

[tex]A = \$1000 * e^{(0.05 * 1)} = \$1000 * 1.0517[/tex]

[tex]A = \$1051.7[/tex]

So, after 1 year, Ana would have $1051.7 in her account, including interest. The higher the interest rate and the longer the time period, the more money Ana would have in her account due to the compounding effect.

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The slope of the least-squares regression line is not directly related to the fraction of the variation in the response variable that is explained by the explanatory variable.

The slope of the least-squares regression line is a numerical measure of the rate of change in the response variable for a unit change in the explanatory variable. It does not directly relate to the fraction of the variation in the response variable that is explained by the explanatory variable. This is because the fraction of the variation in the response variable that is explained is determined by the correlation coefficient, which is a measure of how well the regression line fits the data. The slope of the least-squares regression line is unitless, meaning it does not have any specific unit such as meters, seconds, or degrees. The slope of the least-squares regression line is simply a numerical measure of the rate of change in the response variable per unit change in the explanatory variable. This is different from the fraction of the variation in the response variable explained by the explanatory variable, which is determined by the correlation coefficient.

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Specific individuals in a population are unfairly left out of a study, which is known as exclusion bias. When researchers design a study that inadequately represents specific segments of the community, undercoverage bias emerges.

When a sample is not chosen that accurately represents the full population of data, a statistical error known as sampling error arises. As a result, the sample's findings do not accurately reflect the outcomes that the complete population would produce.

When a sample is chosen from a population based on the idea of randomization, this practise is known as probability sampling.

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Therefore , the solution of the given problem of standard deviation comes out to be the range rule of thumb is only an approximation and does not take into account the shape of the distribution .

Variance is a measure of variation used in statistics. To calculate the average variance between the data and the mean, use the algorithm below. In opposition to other numerical measures of variability, it incorporates all data points into calculations by comparing each data point's value to the mean. Among the differences are unintentional errors, irrational expectations, and changing market or economic conditions.

Here,

According to the range rule of thumb, the range of the data set is roughly four times the standard deviation. Therefore, we can estimate the standard deviation by dividing the range by 4:

range = 196.9 - 154 = 42.9

estimated standard deviation = range / 4 = 10.725

Comparing this estimate to the actual standard deviation of 8.04 cm calculated using the 149 heights, we see that the estimate is off by about 2.685 cm.

This suggests that the estimate obtained using the range rule of thumb is not very accurate in this case, as it is outside the 1.4 cm threshold for accuracy.

This is not surprising, as the range rule of thumb is only an approximation and does not take into account the shape of the distribution or the sample size.

Therefore , the solution of the given problem of standard deviation comes out to be the range rule of thumb is only an approximation and does not take into account the shape of the distribution or the sample size.

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Answer:

0.707106781187

Step-by-step explanation:

I recommend using the website desmos

Answer:

Time (min) Distance (km)

6       9

12      18

24     36

15     45

Step-by-step explanation:

The table shows equivalent ratios between time in minutes and distance in kilometers. An equivalent ratio means that the ratio of time to distance stays the same, even though the numbers themselves change.

For example, in the first row, the ratio of time to distance is 6 minutes to 9 kilometers. In the second row, the ratio of time to distance is 12 minutes to 18 kilometers. Despite the change in numbers, the ratio of time to distance remains the same. This is why these ratios are considered equivalent.

Using trigonometry,  solving the provided question, we can say that here, [tex]2ab cos A = \frac{b^{2} + c^{2} - a^{2}}{2bc}[/tex] and [tex]\theta = 37[/tex]

The relationship between triangle side lengths and angles is examined in the branch of mathematics known as trigonometry. The application of geometry in astronomical study gave rise to the area's first appearance in the Hellenistic era, roughly in the third century BC. Exact approaches mathematics focuses on certain trigonometric functions and how they could be applied to calculations. In trigonometry, there are six well-known trigonometric functions. They are known by their various names and acronyms: sine, cosine, tangent, cotangent, secant, and cosecant (csc). Trigonometry is the study of the properties of triangles, particularly of right triangles. The features of all geometric figures are studied in geometry.

where the sides b and c are forced together, trapping the angle A in (1). There are three options if you wish to rearrange the formula. You can get the answer for B, C, or A.

Reverse the cosine rule provided:

[tex]A^{2} = b^{2} + c^{2}- 2abcos A[/tex]

[tex]2ab cos A = \frac{b^{2} + c^{2} - a^{2}}{2bc}[/tex]

Replace A = θ with a = 17, b = 14, and c = 26,

then simplify:

[tex]Cos \theta = \frac{14^{20} + 26^{2} - 17^{2}}{2\times 14 \times 26}[/tex]

[tex]Cos \theta = \frac{583}{728}[/tex]

[tex]\theta = cos^{-1}(\frac{583}{728})[/tex]

[tex]\theta = 37[/tex]°

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Complete question -

Answer:

rational number, 2/9, 22/100=11/50, rational, no fraction equivalent, perfect square, non-perfect square

Step-by-step explanation:

Answer:

[tex]-6[/tex]

Step-by-step explanation:

[tex]-5.f(-2) - 3g(7)[/tex]

The values of [tex]f(-2)[/tex] and [tex]g(7)[/tex] have to be read and deduced from the respective [tex]f(x)[/tex] and [tex]g(x)[/tex] graphs

[tex]f(-2)[/tex]:

For x = [tex]-2[/tex], draw a straight vertical line connecting x = [tex]-2[/tex] and the blue [tex]f(x)[/tex] graph. It can be observed that the the blue [tex]f(x)[/tex] graph is touching the x-axis at x = [tex]-2[/tex]. Therefore, the corresponding y [or [tex]f(x)[/tex]] value is 0.

[tex]g(7)[/tex]:

For x = 7, draw a straight vertical line connecting x = 7 and the red dashed [tex]g(x)[/tex] graph. Then (from this meeting point) draw a straight horizontal line that touches the y-axis. It can be observed that the corresponding y [or [tex]g(x)[/tex]] value is 2

Now substitute the deduced values in the expression:

[tex]-5.[/tex](0) [tex]-3.[/tex](2) = [tex]0 - 6[/tex]

                     = [tex]-6[/tex]

The simplification of the algebraic expression results in 7m^5 - 3m^3 - 3.

Algebraic expressions are mathematical expressions that consist of integers, variables, and arithmetic operations. To simplify algebraic expressions, some mathematical properties are being used such as distributive property in opening the brackets and additional property in adding like terms together.

Given that:

= (6m^5+3-m^3-4m)-(-m^5+2m^3-4m+6)

Apply distributive property

= 6m^5 + m^5 - m^3 -2m^3 - 4m + 4m + 3 - 6

Add like terms

= 7m^5 - 3m^3 - 3

Therefore, we can conclude that the simplification of the algebraic expression results in 7m^5 - 3m^3 - 3.

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The number of tractors that should be produced to incur the minimum cost will be 300.

For the maximum value of the function if f''(x) < 0 and for the minimum value of the function if f''(x) > 0.

The maximum and minimum value of the function is at f'(x) = 0.

The function is given below.

C(x) = 11000 − 60x + 0.1x²

Differentiate the function with respect to x, then we have

C'(x) = 0

(d/dx)(11000 − 60x + 0.1x²) = 0

− 60 + 0.2x = 0

0.2x = 60

x = 300

The number of tractors that should be produced to incur the minimum cost will be 300.

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The equation that determines the intersection of line with a clipping triangle is ax + by + c = 0 [1]. The solution has been obtained by using functions.

What is a function?

A function is described as a relationship between a group of inputs with one output each. A function is, to put it simply, a relationship between inputs in which each input is connected to exactly one output. Every function has a domain and a codomain, or range. A function is typically represented by the notation f(x), where x represents the input. A function is typically shown as y = f(x).

The equation ax + by + c = 0 [1] represents the line in question. A list of pairs of coordinates for each intersection point and the number of intersections (count) should be returned by the function (list).

A list of items can be sent to the function count list, which will return the total number of objects in the list. The function returns the number of objects in the specified list after accepting an array or list of objects.

Hence, the equation that determines the intersection of line with a clipping triangle is ax + by + c = 0 [1].

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The rational numbers in this problem are given by these following options:

A, B, C, D, E, G, I, K, L, O.

Rational numbers are the whole numbers plus decimals that can be represented by fractions, involving both positive and negative numbers.

The set of irrational numbers is composed by numbers that cannot be represented by fractions, such as non-exact roots, which are non-terminating and non-repeating decimal numbers.

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Step-by-step explanation:

Is some of the problem missing? impossible to answer unless we know how much they make an hour

Answer:  k=(1/5)

Step-by-step explanation:

Answer:

$26.25

Step-by-step explanation:

25% of 35 can be found by multiplying .25 x 35 to get 8.75

the coupon will reduce the regular price of $35 by 8.75 to produce the new price of $26.25

Answer:

Step-by-step explanation:

To find the percent change, we can use the formula:

percent change = (final value - initial value) / initial value * 100

In this case, the initial value is 8 and the final value is 120. Plugging in the values, we get:

percent change = (120 - 8) / 8 * 100 = 1,400%

So, the percent change in the number of Crayola crayon colors is 1,400%. This represents a significant increase from the initial 8 colors in 1903.

The class width for a frequency distribution with 9 classes is 35.

The difference between the highest and lowest values for a given data collection is the range in statistics. In statistics, we must put the given values, set of data, or set of observations in ascending order in order to determine the range. That indicates that you should start by writing the observations from lowest to highest value. The formula must now be used to determine the range of observations.

The range of the data is given as:

Range = highest value - lowest value

Range =  389 - 77

Range = 312

The class width for a frequency distribution with 9 classes is:

Class width = 312 / 9 = approx. 35.

Hence, the class width for a frequency distribution with 9 classes is 35.

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Answer:

Step-by-step explanation:

Answer:

40,000 + 700 + 50 + 3

Step-by-step explanation:

Expanded form requires you to separate the numbers in power of ten

Answer:

4.84 m

Step-by-step explanation:

V = πr²h

h = V/πr² = (3.8 m³) / π(0.5m)² = 4.84 m

Malia can't buy 75 water bottles and 100 pairs of socks because it is not a solution to the system.

System of Inequalities:

The term "system of inequalities" refers to a collection of two or more disparities in one or more variables. When a problem demands a variety of solutions and those solutions must satisfy many constraints, systems of inequalities are used.

Now in the given question,

Here we have a graph of inequalities, and we just need to see if the pair (75, 100) is a solution.

The solutions of the system are all the points in the intersection of the two shaded areas (in this case are all the points in the green area)

Now, clearly the point (75, 100) is not a solution

Even if you evaluate that in the first inequality:

x + y ≥ 200

we get:

75 + 100 ≥ 200

175 ≥ 200

which is false.

So no, Malia can't buy 75 water bottles and 100 pairs of socks.

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Answer:

"18", "54", and "108"

Step-by-step explanation:

A straight line has an angle of 180 degrees. It can be seen as "half a circle", which has an angle of... 360 degrees, and since it's half, it's just 180 degrees.

Now we're also given the angles that compose the straight line (x, 3x, and 6x), and by adding these angles together, we should get the angle of the straight line. So that means that: [tex]x+3x+6x=180[/tex]

Now from here we can just combine them all into one term:

[tex]10x=180[/tex]

Now divide both sides by 10:

[tex]x=18[/tex]

Our angles are equal to "x", "3x", "6x", and to calculate their value, we just plug in "18" as x giving us: "18", "3(18)", "6(18)" which simplifies to the angles: "18", "54", "108"

By using tool, graph of the quadratic function f (x) = x² + 10x + 24 is shown in figure.

And, Vertex = (- 5, - 1)

A point on graph = (- 6, 0)

An algebraic equation with the second degree of the variable is called an Quadratic equation.

Given that;

The quadratic function is,

⇒ f (x) = x² + 10x + 24

Now, By using tool we can draw the quadratic function f (x) = x² + 10x + 24 is shown in figure.

And, By figure of the quadratic function f (x) = x² + 10x + 24, we get;

Vertex = (- 5, - 1)

A point on graph = (- 6, 0)

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Answer:

(-5, -1) & (-6, 0)

Step-by-step explanation:

Just finished the test and this was correct. Hope this was helpful!!