Based on the frequency distribution above, find the cumulative frequency for the class with lower class limit 27

The base of Octagon Towers has 135-degree inside angles on each side.

The formula: can be used to determine the size of each inner angle of a regular octagon.

(n-2) x 180 / n

where n is the polygon's number of sides.

n=8 for Octagon.

As a result, we can change n in the formula to 8:

(8-2) x 180 / 8 = 6 x 180 / 8

The base of the Octagon Towers is a regular octagon, the measure of each interior angle of the base of the Octagon Towers will be

135-degree

The base of Octagon Towers has 135-degree inside angles on each side.

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Full question

Octagon Towers is an octagon-shaped condominium building in Miami, Florida. Assuming the base of the Octagon Towers is a regular octagon, find the measure of each interior angle of the base of the Octagon Towers.

Each interior angle measures?

Answer: 26

Step-by-step explanation:

Since we are given the value of y, all we need to do is plug it into the equation and solve it. Make sure if you plug this into a calculator that you put the substituted number in parenthesis that way it squares the number correctly without a negative sign.

(-3)²-5(-3)+2

9 - 5(-3) +2

9 - -15 + 2

9 + 15 + 2

24 + 2

26

Hope this helps!

Let's see how the while loop functions for n = 2345. Inside the loop, the reversed number is calculated using the formula reverse = reverse * 10 + remainder. n. n != 0.

Given,

arr: [7, 234, 58100]

Expected Output:

7 + 432+ 18500 = 18939

Input:

arr: [0, 100, 220]

Expected Output:

0 + 100 + 220 = 320

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The correct option is (c) a Mean of 5 inches with a standard deviation of 5 inches for the question

Given,

         The average height of policemen, μ[tex]_{x}[/tex] = 71 inches

          The standard deviation for policemen, SD[tex]_{x}[/tex] = 4 inches

          The average height of a policewoman, μ[tex]_{y}[/tex] = 66 inches

          The standard deviation for policewomen, SD[tex]_{x}[/tex] = 3 inches

We know that,

When policemen and policewomen have paired, the mean for the difference in height can be given by:

                              μ = μ[tex]_{x}[/tex] - μ[tex]_{y}[/tex]

On substituting the value in the above equation, we get:

                              μ = 71 - 66

                              μ = 5 inches

When policemen and policewomen have paired, the standard deviation for the difference in height can be given by:

                              [tex]SD = \sqrt{SD_{x}^{2} + SD_{y}^{2} } \\\\SD = \sqrt{4^{2} + 3^{2} }\\\\SD = \sqrt{ 16 + 9 }\\\\SD = \sqrt{25}\\\\SD = 5[/tex]

Thus, the required mean is 5 inches and the standard deviation is 5 inches.

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The shaded region in a standard normal distributive property corresponds to values between -1 and 1, which represent 68.27% of the area under the curve.

The shaded region in a standard normal distribution corresponds to values between -1 and 1, which represent 68.27% of the area under the curve. This is because the standard normal distribution is a normal distribution with a mean of 0 and a standard deviation of 1. The cumulative probability of a standard normal distribution can be found using the cumulative distribution function (CDF). The CDF of a standard normal distribution is equal to 0.6827 or 68.27%. Therefore, the shaded region in a standard normal distribution represents the cumulative probability from -1 to 1, which is equal to 0.6827 or 68.27%. This means that the shaded region corresponds to 68.27% of the area under the curve. This is important to note because it indicates that the majority of values in a standard normal distribution are located between -1 and 1.

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The complete question is

the shaded region under a normal distribution with mean 0 and standard deviation 1 (standard normal distribution) is shown. which of the following is the best choice that corresponds to the shaded region? select one Values between -1 and 1

The option second correctly represents a linear relationship that is also proportional.

For the stated table:

Option 1:

x y

0 2

4 4

8 6

y/x = 4/4 = 1

y/x = 6/8 = 3/4 (NOT proportionate).

Option 2:

x y

0 0

2 1

4 2

y/x = 1/2

y/x = 2/4 = 1/2 (proportionate).

Option 3:

x y

0 1

5 3

10 5

y/x = 3/5

y/x = 5/10 = 1/2 (NOT proportionate).

Option 4:

x y

0 3

3 7

6 11

y/x = 7/3

y/x = 11/6  (NOT proportionate).

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(x + 2)(3x + 4) on simplification we get 3x² + 10x + 8.

To ascertain whether a graph accurately depicts a function, use the vertical line test. The graph is a function if a vertical line drawn across it is moved and touches it only once at any given time. If there are multiple points where the vertical line touches the graph, the graph is not a function.

Given,

(x + 2)(3x + 4)

x (3x + 4) + 2(3x +4)

3x² + 4x + 6x + 8

3x² + 10x + 8.

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After the first randomization,  μ₁ is 12.5,  is μ₂ 11.46 and μ₁-μ₂ is 1.04. After the second randomization, μ₁ is 11.36, μ₂ is 12.6 and μ₁-μ₂ is -1.24. After the third randomization, μ₁ is 11.98, μ₂ is 11.98 and μ₁-μ₂ is 0.

Randomization is the process of placing a group of objects, persons, etc. in an unpredictable, illogical, or random order. The sum of all observations in a data set divided by the total number of observations is the data set's mean. The subtraction of two variables is the result of subtracting the means of the two variables. Each randomization in this problem consists of two sets of five observations.

For the first randomization:

μ₁=  [tex]\frac{13.6+12.1+15.9+11.2+9.7}{5}[/tex] = 12.5            [ μ₁ = Group A      

μ₂=[tex]\frac{9.2+8.2+11.5+13.8+14.6}{5}[/tex] = 11.46                μ₂ = Group B]

μ₁-μ₂ = 1.04

Similarly solve for the second and third randomizations

The complete question is:

A random number generator assigned each pepper to one of two groups. The weights of the peppers in each group, given three randomizations, appear in the tables.

First randomization

group a

13.6

12.1

15.9

11.2

9.7

group b

9.2

8.2

11.5

13.8

14.6

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Answer:

Ali's mark= 40

Ahmad's mark= 85

Step-by-step explanation:

Let x be Ali's mark and y be Ahmad's mark.

y=2x+5

x+y=125

x+2x+5=125

3x=120

x=40

y=85

Answer:

5

Step-by-step explanation:

To find the median in a set of data, we first need to arrange the numbers in ascending order.

2,3,3,5,5,5,5,7,8

The median is the middle value of the set. Since there is an even number of data points in this set, the median is the average of the two middle values, which are 5 and 5.

So the median = (5+5)/2 = 5.

The slope of the graph changes from -3 to 3 and the y-intercept changes from -2 to -4.

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

The general form of the equation of the line:-

y = mx + c

m = slope

c = y-intercept

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

The given equations are f(x)= -3x-2 to f(x)=3x-4.

The slope of the equation changes from -3 to 3 which is shown in the graph similarly the y-intercept of the graph changes from -2 to -4.

The graph of the two lines f(x)= -3x-2 and f(x)=3x-4 is attached with the answer below.

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Before any lease payments, the lease liabilities on January 1, 2021, is Liability $1,282,994.04 and Annual Deposit = $92,633.22.

Liability is a general term that describes the condition of being accountable for a good or service that is owed to another person.

For instance, a homeowner's tax responsibility may be related to the property taxes he must pay to the civil government or the income taxes he must pay to the external government.

leasing fee:A lease payment is a type of annual rent that is technically required by a contract between two parties and gives one party the right to use the other party's fixed assets, such as computers, manufacturing equipment, software, or other real estate impacts, for a predetermined period of time.

Evaluation:FVAD of $1 table or calculator function

$530,000 in future worth

n = 5

I = 5.00%

divided by 6.1533, the FV factor

Deposit each year: $92,633.22

Check out the FVAD table.

PVAD of $1 in a table or calculator function

the sum of $133,000

n = 20

I = 10.00%

9.36492 PV factor multiplied

Amount Owed $1,282,994.04

Check out the PVAD table.

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The length of the third side of the triangle is​ given by 2 (b + c) S /2bc2 - 1 (b + c)

To determine: the triangle's third side's length.

Since b and c are the lengths of a triangle's sides, let S be the length of the angle that bisects the given sides.

Suppose that angle A is 2α.

ABC's area is equal to (1/2) bcsin2α.

ADC's area is (1/2) bSsinα.

ADB = (1/2) cSsinα Area

Area of ABC is equal to Area of ADC plus Area of ADB.

The equation is (1/2) bcsin2α = (1/2) bSsinα + (1/2) cSsinα.

=> bcsin2α = (b + c) Ssinα

=> bc2sinαcosα =  (b + c) Ssinα

=> cosα =  (b + c) S /2bc

cos2α = 2cos²α  - 1

=> cos2α = 2  {(b + c) S /2bc}²  - 1

also cos2α =  (b² + c² - a²)/2bc

Both being equal:

(b2 + c2 - a2)/2bc = 2 (b + c) S /2bc2 - 1 (b + c)

Simplify to discover an in relation to b.

or, if available, substitute the values of b, c, and S to find a ( this side of triangle )

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A Type I error would occur if the HOA falsely rejects the null hypothesis that only 45% of homeowners support the fee increase when in reality more than 45% supports the increase.

A Type I error occurs when a null hypothesis is rejected when it is actually true. In this case, the null hypothesis is that only 45% of homeowners support the fee increase. To test this hypothesis, the HOA surveys a sample of 50 homeowners and uses the results to test the hypotheses H0: p = 0.45 and Ha: p > 0.45. If the HOA finds evidence that more than 45% of homeowners support the fee increase, when in reality only 45% or less of the homeowners support the fee increase, then a Type I error has occurred. On the other hand, if the HOA does not find evidence that more than 45% of homeowners support the fee increase, when in reality more than 45% of the homeowners do support the increase, then a Type I error has also occurred. In both cases, the HOA has incorrectly rejected the null hypothesis and a Type I error has occurred.

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The function's domain and range are [tex]$x \leq-2, f(x) \leq-8$[/tex]. a part of the job

[tex]$f(x)=-\frac{8}{6}(x+2)^2-8$[/tex] .

Domain of [tex]$-\frac{5}{6}(x+2)^2-8:\left[\begin{array}{cc}\text { Solution: } & -\infty < x < \infty \\ \text { Interval Notation: } & (-\infty, \infty)\end{array}\right]$[/tex]

Range of [tex]$-\frac{5}{6}(x+2)^2-8:\left[\begin{array}{cl}\text { Solution: } & f(x) \leq-8 \\ \text { Interval Notation: } & (-\infty,-8]\end{array}\right]$[/tex]

Axis points of interception [tex]\frac{-5}{6}(x+2)^2-8: \quad[/tex] Y Intercepts: [tex]$\left(0,-\frac{34}{3}\right)$[/tex]

Vertex of [tex]$-\frac{5}{6}(x+2)^2-8:$[/tex] Maximum (-2,-8)

A graph's inflection point is a location where the second derivative changes sign and is equal to 0 or undefined.

If [tex]$f^{\prime \prime}(x) > 0$[/tex] after which f(x) concave upward.

If [tex]$f^{\prime \prime}(x) < 0$[/tex] after which f(x) concave downward.

[tex]$f^{\prime \prime}(x)=-\frac{5}{3}$[/tex]

Therefore the correct answer is Domain [tex]$x \leq-2$[/tex] ,range  [tex]f(x) \leq-8$[/tex] .

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A vector diagram showing the vector OE denoted by a + 2b is as attached.

Vector diagrams can be used to improve visualization and understanding of the magnitude and direction of vectors, and more importantly how multiple vectors interact.

For example, if Peter is pushing a heavy container towards the west, while John is pulling it in the northwest direction, in what direction does the container actually move?

A vector diagram is what will be useful in finding the answer.

Now, we see the vectors  OC and OD denoted by a + b and a − b in the attached diagram. Now, if we want to find a + 2b, we know that a + b will be a resultant but by use of vector analysis, we can plot a + 2b as seen in the first vector diagram attached.

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C-Size of the largest particle that can be removed is a measure of air filter efficiency.

Air filter efficiency is a measure of how effectively a filter removes particles from the air. It can be measured in various ways, depending on the type of filter and the particles it is designed to remove.

A-Total volume of dirt collected - This measure does not provide information about the efficiency of the air filter, it could be a measure of how long the filter has been in use.

B-Total weight of dirt collected - This measure does not provide information about the efficiency of the air filter, it could be a measure of how long the filter has been in use.

C-Size of the largest particle that can be removed - This measure provides information about the efficiency of the air filter, because it tells us the size of the largest particle that the filter can remove. The smaller the particle size, the more efficient the filter is.

D-Total weight of the particles that can be removed - This measure does not provide information about the efficiency of the air filter, it could be a measure of how long the filter has been in use.

Air filter efficiency is usually measured by the Minimum Efficiency Reporting Value (MERV) rating, which is a standard measurement scale that ranges from 1 to 16, the higher the MERV rating, the more efficient the filter is at capturing small particles.

The expression in terms of xx that represents the total amount that Elizabeth paid is - xx + 0.07xx + 0.2(xx + 0.07xx) = 1.47xx

This question uses the concepts of percentages and algebraic expressions.

The expression that is used to calculate the total amount that Elizabeth paid is an example of an algebraic expression.

It uses the percentage tax rate of 7% and the percentage tip rate of 20%, which are both represented by decimal numbers.

Step 1: Calculate the tax by multiplying the subtotal (xx) by the tax rate (0.07): 0.07xx

Step 2: Calculate the tip by multiplying the subtotal (xx) plus the tax (0.07xx) by the tip rate (0.2): 0.2(xx + 0.07xx)

Step 3: Calculate the total by adding the subtotal (xx), the tax (0.07xx), and the tip (0.2(xx + 0.07xx)): xx + 0.07xx + 0.2(xx + 0.07xx)

Step 4: Simplify the expression to 1.47xx.

xx + 0.07xx + 0.2(xx + 0.07xx) = 1.47xx

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Arrays are a fundamental data structure, and an important part of most programming languages.

Method :

Employ two loops. Pick elements one at a time in the outer loop, and then in the inner loop, compare each element's difference to every other element in the array and the largest difference ever calculated. The application of the aforementioned strategy is seen below:

Here i attached the programs

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Answer:

$427

Step-by-step explanation:

Sam expects to make $7 for every $100 he invests, which is a 7% return. To determine how much he expects to make on an investment of $6100, we can use the following formula:

investment amount * (return rate / 100) = expected return

$6100 * (7 / 100) = $427

So Sam expects to make $427 on an investment of $6100 if he makes $7 for every $100 he invests.

Answer:

$427

Step-by-step explanation:

$6100/$100=61

61 ×7=427

The area of the octagon is 40 + 40√(2) in simplest radical form.

What is the area of the octagon?

The area of a regular octagon can be calculated using the formula:

Area = (2 + 4 * √2) * s^2

where s is the length of one of the sides.

An equiangular octagon is an octagon in which all of the angles are congruent. In addition, all the side lengths are also congruent. However, in the case of the side lengths of the octagon are given as 1, 2, 3, 4, 1, 2, 3, and 4 in clockwise order.

To find the area of the octagon, we can use the following formula:

Area = 2(1 + 2 + 3 + 4)(4) * (1 + √(2))/4

Area = 2(10)(4) * (1 + √(2))/4

Area = 80 * (1 + √(2))/2

Area = 40 + 40*√(2)

Hence, the area of the octagon is 40 + 40√(2) in simplest radical form.

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Answer:

[tex]\displaystyle{f'(x)=\dfrac{9}{4}x\left(8x^4+x^2-1\right)^{\frac{1}{8}}(16x^2+1)}[/tex]

Step-by-step explanation:

Given the function [tex]\displaystyle{f(x)=\sqrt[8]{\left(8x^4+x^2-1\right)^9}}[/tex]. We can rewrite the function in exponential form as [tex]\displaystyle{f(x)=\left(8x^4+x^2-1\right)^{\frac{9}{8}}}[/tex]. Here, we have to know the power rules and the chain rule:

[tex]\displaystyle{f(x) = u^n \to f'(x) = nu^{n-1} \cdot \dfrac{du}{dx}}[/tex]

Therefore, from the above formula, we will have:

[tex]\displaystyle{f'(x)=\dfrac{9}{8}\left(8x^4+x^2-1\right)^{\frac{9}{8}-1} \cdot \dfrac{d}{dx}\left(8x^4+x^2-1\right)}\\\\\displaystyle{f'(x)=\dfrac{9}{8}\left(8x^4+x^2-1\right)^{\frac{9}{8}-\frac{8}{8}} \cdot \dfrac{d}{dx}\left(8x^4+x^2-1\right)}\\\\\displaystyle{f'(x)=\dfrac{9}{8}\left(8x^4+x^2-1\right)^{\frac{1}{8}} \cdot \dfrac{d}{dx}\left(8x^4+x^2-1\right)}[/tex]

Next, we derive the function 8x⁴ + x² - 1 by applying the power rules:

[tex]\displaystyle{f(x) = x^n \to f'(x) = nx^{n-1} \cdot \dfrac{dx}{dx} \to f'(x)=nx^{n-1}}[/tex]

Also, deriving any constants will result in 0 always.

Therefore:

[tex]\displaystyle{\dfrac{d}{dx}\left(8x^4+x^2-1\right)} = 4\cdot 8 x^{4-1} + 2\cdot x^{2-1} - 0}\\\\\displaystyle{\dfrac{d}{dx}\left(8x^4+x^2-1\right)} = 32x^3 + 2x}[/tex]

Thus, we will have:

[tex]\displaystyle{f'(x)=\dfrac{9}{8}\left(8x^4+x^2-1\right)^{\frac{1}{8}} \cdot (32x^3+2x)}\\\\\displaystyle{f'(x)=\dfrac{9}{8}\left(8x^4+x^2-1\right)^{\frac{1}{8}} \cdot 2x(16x^2+1)}\\\\\displaystyle{f'(x)=\dfrac{9}{4}x\left(8x^4+x^2-1\right)^{\frac{1}{8}}(16x^2+1)}[/tex]

Therefore, the derivative is:

[tex]\displaystyle{f'(x)=\dfrac{9}{4}x\left(8x^4+x^2-1\right)^{\frac{1}{8}}(16x^2+1)}[/tex]

or you can rewrite in the form of surd as:

[tex]\displaystyle{f'(x)=\dfrac{9}{4}x(16x^2+1)\sqrt[8]{8x^4+x^2-1}}[/tex]

P (W or Z) if W and Z are independent, would be 0.673.

Independent events are the events that the outcome of one event does not affect the outcome of the other event, so the probability of one event happening doesn't change the probability of the other event happening.

If W and Z are independent, it means that the probability of W occurring has no effect on the probability of Z occurring, and vice versa.

In this case P(W or Z) can be calculated using the formula for the probability of the union of two independent events:

P(W or Z) = P(W) + P(Z) - P(W and Z)

P(W and Z) = P(W) x P(Z)

= 0.42 x 0.35

= 0.147

Therefore:

P(W or Z) = P(W) + P(Z) - P(W and Z)

= 0.42 + 0.35 - 0.147

= 0.673

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Therefore ,as a result, the total surface area is 64 + 16 = 80 square units.

The amount of space it occupies on the surface is a decent indication of its overall size. The complete surroundings is taken into account when calculating the area of a tri shape. Something's total size is determined by its surface area. The volume of water inside a cuboid is equal to the total of the volumes on each and every six of its rectangular sides. To calculate the box's measurements, use the formula below: In 2lh, 2lw, and 2hw, the region is identical (SA). The surface area of the multipurpose shape represents the region.

Here,

Imagine a line running from 8m to 4m at the intersection. As a result, a rectangle and a triangle are formed.

Simple

=> is the square's area

=> 8 *8  = 64 square units.

Use the formula

=> (1/2)b*h to determine the triangle's area 

We need to enter the hieght, which is already known to be 4, and the base, which is already known to be 8, into the equation.

=> Triangle area unit = 1/2 * 8 * 4

Therefore ,as a result, the total area is 64 + 16 = 80 square units.

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1) y-coordinate of the vertex of y = x^2 + 2x - 1 is -1.

2) The statement "the vertex of quadratic function f is (-b/2a, f(-b/2a))" is true.

3) The equation y = -2x^2 - 12x - 17 has a maximum.

What is Quadratic Equation?

A quadratic equation is any equation in algebra that can be rearranged in standard form as where x represents an unknown value and a, b, and c represent known numbers.

1) y = x^2 + 2x - 1 is the equation of a parabola in vertex form.

In vertex form, the equation of a parabola is y = a(x - h)^2 + k, where (h, k) is the vertex of the parabola.

So, to find the y-coordinate of the vertex, we can substitute the values of a, h and k into the equation and get the y-coordinate.

For the equation y = x^2 + 2x - 1, the vertex is (-1, -1), where -1 is the y-coordinate.

So, the y-coordinate of the vertex of y = x^2 + 2x - 1 is -1.

2) True.

The vertex of a quadratic function f(x) = ax^2 + bx + c is the point on the parabola that represents the graph of the function where the parabola changes direction from opening upward to opening downward or vice versa.

The x-coordinate of the vertex is given by (-b/2a), and the y-coordinate is given by f(-b/2a), where a, b, and c are constants.

So, the statement "the vertex of quadratic function f is (-b/2a, f(-b/2a))" is true.

3) maximum

The equation y = -2x^2 - 12x - 17 is a quadratic function, and it is in vertex form.

The leading coefficient is -2 which is negative, so the parabola opens downward, which means the vertex of the parabola represents the maximum point of the function. Therefore, the equation y = -2x^2 - 12x - 17 has a maximum.

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If C(x) = 0.001x² + 1000 dollars is the cumulative cost of running the Acme factory, we can find the cumulative profit of the Acme factory by subtracting the cumulative cost from the total revenue. Let's assume that the total revenue is a constant value of R dollars.

Therefore, the cumulative profit function P(x) can be written as:

P(x) = R - C(x)

Where R is the total revenue and x is the number of days since the start of 2018. The unit of the function's output will be dollars, since both the total revenue and the cumulative cost are measured in dollars.

Therefore, P(x) = R - (0.001x² + 1000) dollars

It is important to note that the value of R is not given in the problem statement and it is unknown, thus the function P(x) is not complete without the value of R. In addition, a proper function would have the start date of the factory and the end date, but it's mentioned to be since the start of 2018.

The answer in interval notation is (-∞,-6] u [4+∞)

An interval on a number line can be represented using interval notation. It is a method of representing subsets of the real number line, in other words. The numbers in between any two particular provided numbers are referred to as an interval. For instance, the interval containing 0, 5, and all values between 0 and 5 is the set of numbers x satisfying 0 x 5.

A subset of real numbers can be expressed using interval notation by the integers that bound them. Inequalities can be represented using this notation. We are aware that a range of numbers between 1 and 5 is represented by the interval 1 x 5.

Based on the numbers in the set, intervals can be categorised. Some sets have the endpoints indicated in the notation, but others may only contain them partially or not at all. There are generally three different sorts of intervals:

To represent the interval notation for various sorts of intervals, we can adhere to a set of rules and symbols. Let's examine the various symbols that can be used to represent a specific kind of interval.

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Answer:

y = 48

Step-by-step explanation:

14 x 2 = 28

28 + 20 = 48 = y

16 x 2 = 32

80 - 32 = 48 = y

The range of a set of data is the difference between the highest and lowest values. In this case, the graph shows that the relative humidity changes between 30% and 80% during a 24 hour period in New York City. To find the range, we subtract the lowest value (30%) from the highest value (80%):

Range = 80 - 30 = 50%

So, the range of the relative humidity during this 24 hour period in New York City is 50%.

The range of this set of data is 30 ≤ y ≤ 80.

The correct option is 3.

A relation between a collection of inputs and outputs is known as a function. A function is a connection between inputs in which each input is connected to precisely one output. Each function has a range, co-domain, and domain.

Given:

A meteorologist drew the accompanying graph to show the changes in relative humidity during a 24-hour period in New York City.

The graph is given in the attached image.

The function is not exceeding the value 80.

And more than the value 30.

So, the range is,

= 30 ≤ y ≤ 80.

Therefore, the range is 30 ≤ y ≤ 80.

To learn more about the function;

brainly.com/question/28303908

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