Pleaze help worth 30 points

heres a photo of the graph to that equation

Rounding to the nearest tenth, we get Average rate of change ≈ -27.5

In mathematics, an average is a measure of central tendency that represents the typical or common value of a set of data. There are several types of averages, including:

Arithmetic mean: The arithmetic mean is the most commonly used measure of average. It is calculated by adding up all the values in a dataset and dividing by the total number of values. For example, the arithmetic mean of the numbers 1, 2, 3, 4, and 5 is (1 + 2 + 3 + 4 + 5) / 5 = 3.

Median: The median is the middle value in a dataset when the values are arranged in numerical order. If there is an even number of values, the median is the average of the two middle values. For example, the median of the numbers 1, 3, 4, 6, and 7 is 4.

Mode: The mode is the value that appears most frequently in a dataset. If there are multiple values that appear with the same frequency, the dataset is said to have multiple modes. For example, the mode of the numbers 1, 2, 2, 3, and 4 is 2.

Averages are used in a wide range of applications, including statistics, finance, and science. They can help summarize data, identify trends, and make comparisons between different sets of data. However, it is important to note that averages can be affected by outliers or extreme values in a dataset, so it is important to consider other measures of variability and dispersion when analyzing data.

The average rate of change of the cost from the 6th month to the 8th month is given by the expression:

(Amount of change in cost) / (Amount of change in month)

The amount of change in cost from the 6th to the 8th month is:

c(8) - c(6) = 100 - 155 = -55

The amount of change in month from the 6th to the 8th month is:

8 - 6 = 2

Therefore, the average rate of change of the cost from the 6th month to the 8th month is:

(Amount of change in cost) / (Amount of change in month) = -55 / 2 ≈ -27.5

Rounding to the nearest tenth, we get:

Average rate of change ≈ -27.5

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In length 5.4 feet is equivalent to 164.592 centimeters.

Firstly, it is important to understand that length is a physical quantity that describes the size or distance of an object. The unit of length can vary depending on the system of measurement used. The Imperial system, which is commonly used in the United States, measures length in feet, whereas the metric system, which is used worldwide, measures length in centimeters.

Now, to convert 5.4 feet into centimeters, we need to use a conversion factor. One foot is equivalent to 30.48 centimeters, so we can multiply 5.4 feet by 30.48 to get the equivalent length in centimeters.

5.4 feet x 30.48 cm/1 foot = 164.592 cm

It is important to note that when dealing with measurements, it is crucial to use the appropriate unit of length to ensure accuracy and consistency.

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Answer:

Plug in the variable (x) in the equation.

Step-by-step explanation:

once you plug it in, multiplied by two, and subtract by 3, and it should equal your y input

Therefore, there are 21 possible selections of two individuals from a group of seven people.

In mathematics, a combination is a way of selecting a subset of objects from a larger set, where the order of selection does not matter. Combinations are also known as unordered selections or combinations without repetition. The number of combinations of k objects that can be selected from a set of n distinct objects is denoted by "n choose k" and is given by the formula: n choose k = n! / (k! (n - k)!) where n! is the factorial of n, defined as the product of all positive integers up to and including n, and k! and (n-k)! are the factorials of k and n-k, respectively. In words, this formula says that the number of combinations of k objects that can be selected from a set of n objects is equal to the number of ways to arrange k objects out of n, divided by the number of ways to arrange the remaining n-k objects.

Here,

To determine the number of possible selections of two individuals from a group of seven people, we can use the formula for combinations:

nCk = n! / (k! (n - k)!)

where n is the total number of individuals in the group, and k is the number of individuals to be selected. In this case, we want to select 2 individuals from a group of 7, so we have:

n = 7

k = 2

Substituting these values into the formula, we get:

7C2 = 7! / (2! (7 - 2)!)

= 7! / (2! 5!)

= (7 x 6 x 5!) / (2 x 1 x 5!)

= (7 x 6) / (2 x 1)

= 21

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Answer:

The probability of drawing a red marble then a yellow marble out of the bag is probably 0.48(Decimal) or 12/25(Fraction).

Answer: 140 dollars

Step-by-step explanation:

0.3x=42   x=140

The probability that someone would have done at least as well as the man with no ESP is 0.077, or 7.7%.

The probability that someone would have done at least as well as the man with no ESP is calculated by the binomial probability formula. This formula takes into account the number of trials, the number of successes, and the probability of success in each trial. In this case, the number of trials is 22, the number of successes is 16, and the probability of success in each trial is 50% (0.5). The binomial probability formula states that the probability of success given this information is 0.077. This means that the probability that someone would have done at least as well as the man with no ESP is 0.077, or 7.7%.

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An online calculator of simplifying fractions is a tool that can be used to reduce a fraction to its simplest form or lowest terms.

These calculators are easily accessible on the internet and are designed to make it easy for users to simplify fractions quickly and accurately. To use the calculator, users simply input the numerator and denominator of the fraction they wish to simplify.

The calculator then performs the necessary calculations to find the greatest common factor of the numerator and denominator and divides both by this factor to provide the simplified fraction. These calculators can be especially helpful for students and professionals who need to simplify a large number of fractions or who are learning how to simplify fractions for the first time.

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The answers are :- 1) Δ ABC ~ Δ DEF, by AA rule and 2) Δ RTS and Δ MQP are not similar.

Similar triangles are the triangles that look similar to each other, but their sizes might not be exactly the same.

Given are two pairs of triangles, we need to determine if they are similar or not,

1) Δ ABC and Δ DEF :-

We know that, the sum of the interior angles of a triangle is 180°,

Therefore,

∠ A + ∠ B + ∠ C = 180°

60° + ∠ B + 79° = 180°

∠ B = 180°-139°

∠ B = 41°

In Δ DEF,

∠ F = 79° and ∠ E = 60°

That means,

∠ B ≅ ∠ F and ∠ E ≅ ∠ C

Since, we get two corresponding angles congruent,

Therefore, by the definition of similar triangles,

Δ ABC ~ Δ DEF, By AA rule.

2) Δ RTS and Δ MQP :-

∠ R ≅ ∠ M

RT / MQ = TS / QP = 4 / 5

RS / MP = 20 /26 = 10 / 13

That means,

RT / MQ = TS / QP ≠ RS / MP

Since, we have a condition in similarity, that if, in two triangles two corresponding sides are in equal ratio, and an angle between these sides are congruent then the triangle are similar by SAS rule,

But the angle R and angle M is not in between the sides having equal ratio,

Therefore, Δ RTS and Δ MQP are not similar.

Hence, the answers are :- 1) Δ ABC ~ Δ DEF, by AA rule and 2) Δ RTS and Δ MQP are not similar.

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The requried length of the segment CE in the given figure is 16 centimeters.

If you know the lengths of two sides of a right triangle, you can use trigonometric ratios to calculate the measures of one (or both) of the acute angles.

Here,
From the given figure,
Applying the trig ratios in triangle ABC to evaluate BC,
tan60 = 12/BC
BC = 12/√3
BC = 4√3

Now,
BC = AD and ∠EAD = 90 - ∠ABC  [∠ABC = ∠ADC]
So ∠EAD = 90 - 60 = 30

Again in triangle ADE,
tan60 = ED/AD
ED = AD/√3
ED = 4√3/√√3
ED = 4

SO, the required length CE
= ED + DC
= 4 + 12
= 16 cm

Thus, the requried length of the segment CE in the given figure is 16 centimeters.

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In the case of converting 3cm to mm, we find that there are 30mm in 3cm.

Understanding how to convert measurements is a fundamental skill that will serve you well in many areas of study. In this case, we'll focus on how to convert 3cm to mm.

First, it's important to understand that cm and mm are both units of measurement for length or distance. The abbreviation cm stands for centimeters, while mm stands for millimeters. A centimeter is larger than a millimeter, with 1cm equaling 10mm.

To convert 3cm to mm, we need to use this relationship between the two units of measurement. We know that 1cm is equal to 10mm, so we can use multiplication to find out how many millimeters are in 3cm.

We can start by writing out the equation:

3cm x 10mm/1cm

In this equation, we're multiplying 3cm by the conversion factor of 10mm/1cm. This conversion factor tells us that there are 10mm in 1cm. When we multiply 3cm by this conversion factor, we get:

3cm x 10mm/1cm = 30mm

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The expression can be written as ⁴√y. The solution has been obtained by solving the radical expressions.

What are radical expressions?

A square root-containing expression is referred to as a radical expression. When a root other than a square root is being represented, the radical sign's 'V'-shaped component will have a superscript number.

We are given expression as y to the three fourths power, all over y to the one half power. This can be written as

[tex]\frac{y^{3/4}}{y^{1/2} }[/tex]

We know that

cᵃ ÷ cᵇ = cᵃ⁻ᵇ

So, using this we get

[tex]y^{3/4 - 1/2[/tex]

[tex]y^{1/4[/tex]

Since, we have to represent this in the radical form, we know that

b[tex]^{1/a}[/tex] = ᵃ√b

So, using this we get

[tex]y^{1/4[/tex] = ⁴√y

Hence, the expression can be written as ⁴√y.

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The length of the guy wire, to the nearest foot is 23 feet.

Based on the information provided, we can logically deduce that triangle ABE (ΔABE) is similar to triangle (ΔCDE) and the following parameters about the geometric figures;

Additionally, the corresponding sides of similar triangles are equal;

AB/CD = BE/DE

AB/6 = (9 + 4)/4

AB/6 = 13/4

AB = 19.5 feet.

By applying Pythagorean' theorem, side AE is given by:

AE = √(AB² + BE²)

AE = √(19.5² + 13²)

AE = 23.44 ≈ 23 feet.

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Answer:

Step-by-step explanation:

The sequence is in AP

a=-12, d= -4

Nth term is given by [tex]T_{n}=a+(n-1)d\\[/tex]

[tex]T_{n}=-12+(n-1)(-4) = -12-4n+4 = -4n-8[/tex]

[tex]T_{n}= -4n-8[/tex]

The conversion method from milimeter to nanometer is Quantity in nanometer = quantity in milimeter × 10⁶.

In the question, the two short forms mm and nm are representative of milimeter and nanometer. As per the known information, the milimeter represents 1/10³ meters and nanometer represents 1/10⁹ meters. So, we see that the difference between the exponents of 10 is 6 (as 9 - 3 = 6).

Therefore, the conversion of milimeter to nanometer will be through the mentioned formula -

Quantity in nanometer = quantity in milimeter × 10⁶

For instance, the quantity 3 mili meters in nanometer will be calculated as follows.

Quantity in nanometer = 3 × 10⁶ nanometer

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The point (if it exists) at which the following plane and line intersect: x=11;r(t)==11; for −[infinity] will be (11, t, 11)

We are given the equation of a plane and a line, but we need more information to determine if and where they intersect. Specifically, we need the equation of the plane in the form Ax + By + Cz = D, and we need the parametric equation of the line in the form x = x0 + at, y = y0 + bt, z = z0 + ct, where (x0, y0, z0) is a point on the line and (a, b, c) is the direction vector of the line.

Assuming that the equation of the plane is of the form Ax + By + Cz = D and the parametric equation of the line is of the form x = 11, y = t, z = 11 for all real numbers t, we can proceed as follows:

1. Substitute the parametric equation of the line into the equation of the plane to get an equation in t:

A(11) + B(t) + C(11) = D

2. Solve for t:

t = (D - A(11) - C(11)) / B

3. Substitute the value of t into the parametric equation of the line to get the point of intersection:

(11, t, 11)

This calculation assumes that the line and plane intersect at a single point. If the line is parallel to the plane, it may not intersect at all, or it may intersect in a line or a plane.

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To find the volume of a solid obtained by rotating a region bounded by curves around an axis, we can use the disk or washer method.

Suppose we want to find the volume of a solid obtained by rotating the region bounded by the curves y = f(x), y = g(x), and the lines x = a and x = b around the x-axis.

We can divide the region into vertical slices of width Δx, and rotate each slice around the x-axis to obtain a disk or washer. The volume of each disk or washer can be approximated as the area of the base times the thickness, or π(R² - r²) Δx, where R and r are the outer and inner radii of the disk or washer, respectively.

To find the exact volume, we take the limit as Δx approaches zero and sum up the volumes of all the disks or washers using integration:

V = ∫[a, b] π(R² - r²) dx

where R = f(x) and r = g(x).

Alternatively, if we want to rotate the region around the y-axis, we can divide the region into horizontal slices of width Δy, and rotate each slice around the y-axis to obtain a disk or washer. The volume of each disk or washer can be approximated as π(R² - r²)Δy, where R and r are the outer and inner radii of the disk or washer, respectively.

The exact volume can be found using integration as:

V = ∫[c ,d] π(R² - r²) dy

where R = f(y) and r = g(y), and c and d are the y-coordinates of the endpoints of the region.

In either case, it is important to sketch the region and identify the appropriate radii before setting up the integral.

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Answer:

22.86

multiple 3.54 to 9

With the help of expression 6*33 we found that Mike took a total of 198 baseballs.

What are expressions exactly?

In mathematics, expressions are mathematical claims that consist of at least two sentences that contain numbers, variables, or both, and are linked by an operator in between. Mathematical operations include addition, subtraction, multiplication, and division. For instance, x + y is an equation in which the words x and y are separated by an addition operator. In mathematics, there are two types of expressions: numerical expressions, which include only numbers, and algebraic expressions, which contain both numbers and variables.

e.g. A number is 6 more than half of another number, x. This proposition can be stated mathematically as x/2 + 6. Mathematical expressions are used to answer complex problems.

Now,

Given that Total baseballs=363

Total trash bin=11

baseballs in one trash bin =363/11

=33

Mike took 6 trash bins

then baseballs in 6 trash bins are =6*33

=198

hence,

            Mike took a total of 198 baseballs.

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Answer:

Step-by-step explanation:

Firgure is out your self

From the given data, the answer is option B, 22 cans. Larissa should purchase minimum 22 cans of sport drink.

First, we need to calculate the volume of each cone-shaped cup using the given dimensions:

Radius of the cone = diameter / 2 = 7 cm / 2 = 3.5 cm

Height of the cone = 10 cm

Using the formula for the volume of a cone, we get:

Volume of each cone-shaped cup = (1/3) x π x radius² x height

Volume of each cone-shaped cup = (1/3) x π x (3.5 cm)² x 10 cm

Volume of each cone-shaped cup ≈ 128.68 cm³

Next, we need to calculate the total volume of sports drink needed for 900 servings:

Total volume of sports drink needed = 900 x 128.68 cm³

Total volume of sports drink needed ≈ 115811.2 cm³

Now, we need to calculate the volume of one economy can of sports drink using the given dimensions:

Radius of the can = diameter / 2 = 15 cm / 2 = 7.5 cm

Height of the can = 30 cm

Using the formula for the volume of a cylinder, we get:

Volume of one can of sports drink = π x radius² x height

Volume of one can of sports drink = π x (7.5 cm)² x 30 cm

Volume of one can of sports drink ≈ 5309.73 cm³

Finally, we can divide the total volume of sports drink needed by the volume of one can of sports drink to find the minimum number of cans Larissa should purchase:

Minimum number of cans of sports drink = Total volume of sports drink needed / Volume of one can of sports drink

Minimum number of cans of sports drink = 115811.2 cm³ / 5309.73 cm³ = 21.83

Since we need to purchase whole cans, the minimum number of cans Larissa should purchase is 22.

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The value of the original price is $185

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

Sales price = $222.00

Percent of markup = 20%​

The original price is calculated as

Original=  Sales Price/(1 + Markup)

Substitute the known values in the above equation, so, we have the following representation

Original = 222/(1 + 20%)

Evaluate

Original = 185

Hence, the original price is $185

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Complete question

Diane wants to buy a leather chair at 20% markup. The sale price is $222. What was the original price?

With the help of linear equation 3 3/5+x=7 1/5, Elana ran 3 3/5 miles.

What exactly is a linear equation?

A linear equation is one in which the variable's maximum power is always 1. A one-degree equation is another name for it. A linear equation in one variable has the conventional form Ax + B = 0, for example, x-10=0. In this equation, x is a variable, A is a coefficient, and B is constant.

A linear equation in two variables has the conventional form Ax + By = C, for example, 2x-4y=10. The variables x and y are variables, the coefficients A and B are coefficients, and the constant C is a constant.

Now,

Given that Emily ran 3 3/5 miles.

and Emily and Elana together ran 7 1/5 miles

i.e. 3 3/5+x=7 1/5

where x= Miles Elana ran

then x=7 1/5 - 3 3/5

=3 3/5

hence,

      The  linear equation will be 3 3/5+x=7 1/5 and Elana ran 3 3/5 miles.

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(a) 27 outcomes in the sample space are : (1,1,1), (1,1,2), (1,1,3), (1,2,1), (1,2,2), (1,2,3), (1,3,1), (1,3,2), (1,3,3), (2,1,1), (2,1,2), (2,1,3), (2,2,1), (2,2,2), (2,2,3), (2,3,1), (2,3,2), (2,3,3), (3,1,1), (3,1,2), (3,1,3), (3,2,1), (3,2,2), (3,2,3), (3,3,1), (3,3,2), (3,3,3)

(b) All outcomes in the event that all three members go to the same station are : (1,1,1), (2,2,2), (3,3,3)

(a) The 27 outcomes in the sample space can be represented as ordered triples, where each element corresponds to the station that each family member is assigned to. The possible values for each element are 1, 2, and 3. Therefore, the sample space consists of the following 27 outcomes:

(1,1,1), (1,1,2), (1,1,3), (1,2,1), (1,2,2), (1,2,3), (1,3,1), (1,3,2), (1,3,3),

(2,1,1), (2,1,2), (2,1,3), (2,2,1), (2,2,2), (2,2,3), (2,3,1), (2,3,2), (2,3,3),

(3,1,1), (3,1,2), (3,1,3), (3,2,1), (3,2,2), (3,2,3), (3,3,1), (3,3,2), (3,3,3)

(b) The outcomes in the event that all three members go to the same station can be found by examining the 27 outcomes in the sample space and selecting those outcomes where all three elements are the same. Therefore, the outcomes in the event that all three members go to the same station are:

(1,1,1), (2,2,2), (3,3,3)

In these outcomes, all three family members are assigned to the same station. There are three such outcomes, since each family member can be assigned to any one of the three stations.

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We can solve the given problem using conversion of Binomial to Normal distribution.

(The binomial distribution is defined as the discrete probability distribution which can only give two possible results in an experiment, that is either success or failure.)

The binomial distribution is converted to Normal distribution  when the number of total trial, denoted as n is sufficiently large and the probability of success ( or failure), represented as p is small.

Mean , E(x)= np

Variance, V(x) = npq

where  V(x) and E(x) are variance and mean of normal distribution.

Given,

n= 4590, p=  35%= 0.35, q= 0.65

Thus, E(x) = 4590 * 0.35 = 1606.5

V(x) = 4590 * 0.35* 0.65= 1044.225

Thus,  the probability the proportion of the 30 Americans sampled that agree climate change is an immediate threat to humanity exceeds 35% is,

P( x > 1606.5)= P( x<= 1606.5)

                    = P( z= x-1606.5 / 1044.225)

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To convert milligrams to milliliters for water or a substance with the same density, divide the number of milligrams by 1000.

Converting milligrams (mg) to milliliters (ml) depends on the density of the substance being measured. Density is the amount of mass in a given volume, and different substances have different densities. Therefore, the conversion factor will vary depending on what substance you are trying to convert.

However, if you are working with water or another substance with a density of 1 gram per milliliter, then the conversion is straightforward. One milliliter of water weighs one gram, or 1000 milligrams. So to convert milligrams to milliliters for water or a substance with the same density, you simply divide the number of milligrams by 1000.

However, for other substances with different densities, you need to know the substance's density to convert mg to ml. In this case, you will need to use the formula:

Volume (ml) = Mass (mg) ÷ Density (mg/ml)

It's important to note that for some substances, such as oils or syrups, the density may change depending on the temperature or other factors.

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Answer:90

Step-by-step explanation:

The result of multiplcation of two positive numbers that is 18 and 5 or 18× 5 is equals to the ninty.

Multiplication is an operation that represents the basic idea of repeated addition of the same number. The numbers that are multiplied are called the factors and the result that is obtained after the multiplication of two or more numbers is known as the product of those numbers. Multiplication is used to simplify the task of repeated addition of the same number. How to calculate 18 multiplied by 5 using long multiplication : we have one is two digits number,i.e, 18 and other one is 5.

1 8

x 5

______

Step 2: Multiply, 5 x 8 = 40. Put 0 below the line and 4 as a reminder on top:

4

1 8

x 5

_______

0

Step 3: Multiply 5 x 1 = 5. Take 5 and add 4 from the previous step to get 9. Enter 9 at the bottom:

1 8

x 5

_______

9 0

So, required value is 90.

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The output the last three characters of a string, we need to create a variable to store the string, assign the string to the variable, and use the string slicing method to extract the last three characters

To start, we need to create a variable to store our string. We can name this variable "str". Next, we need to assign our string to the variable. We can do this by using the assignment operator "=".

Now, we can begin manipulating the string to output the last three characters. To do this, we can use the string slicing method. This method allows us to extract a portion of the string by specifying the start and end indices. In this case, we want to start at the third-last character, so our start index will be -3. Since we want the last three characters, our end index will be -1. We can use this information to create the following code:

str = "hello"

last_three_characters = str[-3:-1]

Now, when we print the variable last_three_characters, it should output "lo". This is because the slicing method extracts the characters from the start index up to, but not including, the end index.

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Complete Question:

Write a program to the postfix of 3 is the last 3 characters of a string. Given a string input, output the last three characters of that string. Assume the string will always have at least three characters

The expected population size after two generations is 216.

To calculate the expected population size after two generations using the given value of λ, we can use the formula:

[tex]Nt = N0 * lemda ^{t}[/tex]

where Nt is expected population size after t generations,

N0 is the initial population size, and lemda (λ) is the geometric growth rate.

Here, initial population size is N0 = 150, and the growth rate is λ = 1.2. We want to find the expected population size after two generations, so t = 2.

Putting these values into the formula, we get:

[tex]Nt = 150 * (1.2)^{2} \\Nt = 150 * 1.44\\Nt = 216[/tex]

Therefore, the expected population size after two generations is 216.

So, the correct answer is option (d) 216.

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