The average rainfall in Phoenix is 8.29 inches per year. The table shows recent data on the difference in annual rainfall from the average.

Phoenix Annual Total Rainfall
Year
Rainfall compared to average yearly rainfall
2008
+6.57 inches
2009
–2.68 inches
2010
+12.26 inches
2011
–4.38 inches
2012
–4.46 inches

Which list represents the years from driest to wettest?
2010, 2008, 2009, 2011, 2012
2011, 2012, 2009, 2008, 2010
2012, 2011, 2009, 2008, 2010
2009, 2011, 2012, 2008, 2010

Answer: A and C

Step-by-step explanation: It’s not independent or dependent because,

independent= doesn’t depend on another (cause)

dependent= depends on another (effect) —> maybe if this were about weight gain/ weight loss.

I would go with

C and A.

It makes the most sense food wise.

Therefore, the polar form of the rectangular equation x = y² is: r = √(cos(θ) / sin²(θ))

In mathematics, an equation is a statement that shows the equality between two expressions. An equation typically contains variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division. The expressions on either side of the equal sign are called the left-hand side (LHS) and the right-hand side (RHS) of the equation.

Here,

To convert the rectangular equation x = y² to polar form, we need to replace x and y with their polar representations in terms of r and theta. Here's how to do it:

x = y²

r cos(θ) = (r sin(θ))² [replace x and y with r cos(θ) and r sin(θ)]

r cos(θ) = r² sin²(θ)

r² sin²(θ) - r cos(θ) = 0

r(r sin(θ))² = r cos(θ)

r² = cos(θ) / sin²(θ)

r = √(cos(θ) / sin²(θ))

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Using expression 2x - 1,876.23 = 1,692.45, each of Ivy's paychecks is approximately $1,784.34.

What exactly are expressions?

In mathematics, an expression is a combination of symbols and/or numbers that represents a value or a set of values. Expressions can contain variables, constants, operations, and functions, and can be combined using mathematical operators such as addition, subtraction, multiplication, division, and exponentiation.

Now,

Let's assume that Ivy's paychecks are of equal amounts, and each paycheck is of amount "x".

According to the problem, Ivy received two paychecks and withdrew a total of $1,876.23 from her account. Therefore, we can set up the following equation:

2x - 1,876.23 = 1,692.45

Solving for x, we can simplify the equation as follows:

2x = 1,692.45 + 1,876.23

2x = 3,568.68

x = 3,568.68 / 2

x ≈ 1,784.34

Therefore, each of Ivy's paychecks is approximately $1,784.34.

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The circumference of the circle is approximately 69.115 kilometers.

What is circle ?

A circle is a closed two-dimensional shape where all points on the edge are equidistant from the center point. It can be defined as the set of all points in a plane that are at a given distance, called the radius, from a given point, called the center.

The circumference of a circle can be calculated using the formula:

C = 2πr

where r is the radius of the circle and π is the mathematical constant pi (approximately equal to 3.14159).

Substituting r = 11 kilometers into the formula, we get:

C = 2π(11) ≈ 69.115 kilometers

Therefore, the circumference of the circle is approximately 69.115 kilometers.

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The number who prefer Bears is 45 when there are approximately 166.67 students in the school who Jermaine surveyed.

In mathematics, an equation is a statement that shows the equality between two expressions. An equation typically contains variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division. The expressions on either side of the equal sign are called the left-hand side (LHS) and the right-hand side (RHS) of the equation.

Here,

Let's use a table to organize the given information:

Wildcats Bears Eagles Total

Male  0.15x  0.45x

Female 0.30y  0.28y 0.55y

Total 0.30z 0.15z 0.28z 1.00z

Total Students   120

Here, x, y, and z represent the total number of males, females, and students, respectively, and we use percentages to represent the proportion of each group that prefers each mascot. We can use the given information to fill in some of the missing values in the table. For example:

The total number of males who prefer Bears is 0.15x, and the number of people who prefer Bears is 20 fewer than the number who prefer Eagles, so the number of males who prefer Bears is 20 less than the number who prefer Eagles, or 0.15x = 0.28y - 20.

The total number of students is 120, so z = x + y.

Using these equations and the information in the table, we can solve for the remaining values in the table:

Wildcats Bears Eagles Total

Male 0.30x 0.15x 0.45x 0.45x

Female 0.30y 0.12y 0.28y 0.55y

Total 0.30z 0.15z 0.28z 1.00z

Total Students 0.30z 0.27z 0.43z 120

To find the number of students who prefer Bears, we can multiply the total number of students by the proportion who prefer Bears:

0.27z = 0.15z - 20

0.12z = 20

z = 166.67

So there are approximately 166.67 students in the school who Jermaine surveyed. The number who prefer Bears is:

0.27z = 0.27 * 166.67

= 45

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1. question

To find the total surface area of the box, we need to find the areas of all six faces and then add them up. Let's call the length, width, and height of the rectangular prism l, w, and h, respectively. Then the surface areas of the six faces are:

Top and bottom faces: 2lw (there are two identical faces)

Front and back faces: 2lh (again, two identical faces)

Left and right faces: 2wh (and two identical faces here as well)

So the total surface area is:

2lw + 2lh + 2wh

Substituting the given dimensions of the Freebie Cereal box, we have:

2(10)(8) + 2(10)(12) + 2(8)(12)

= 160 + 240 + 192

= 592

Therefore, the total surface area of the Freebie Cereal box is 592 square inches.

2.question

The lateral surface area of a rectangular prism is the sum of the areas of all its faces except for the top and bottom faces. In this case, the sandbox has dimensions of 4.5 feet by 5.4 feet by 2 feet.

The area of the front and back faces is 2 x 2 x 5.4 = 21.6 square feet.

The area of the left and right faces is 2 x 2 x 4.5 = 18 square feet.

So the total lateral surface area is 21.6 + 18 = 39.6 square feet.

Therefore, the closest answer to the lateral surface area of the sandbox is 39.6.

The equation for the line of best fit is a useful tool in data analysis to describe the relationship between two Variables and make predictions based on that relationship.

The equation for the line of best fit is a mathematical formula that describes the relationship between two variables in a data set. It is used in regression analysis to estimate and predict the value of one variable based on the value of another.

To find the equation for the line of best fit, we use the method of least squares, which minimizes the sum of the squares of the differences between the observed data points and the predicted values from the equation.

The equation takes the form of y = mx + b, where y is the dependent variable, x is the independent variable, m is the slope of the line, and b is the y-intercept. The slope represents the rate of change of y with respect to x, and the y-intercept is the value of y when x = 0.

The coefficient of determination, denoted as r, is a measure of how well the line fits the data. It ranges from -1 to 1, where a value of 1 indicates a perfect fit, and a value of 0 indicates no correlation. A negative value indicates an inverse relationship.

In summary, the equation for the line of best fit is a useful tool in data analysis to describe the relationship between two variables and make predictions based on that relationship.

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Answer:

The standard deviation for the number of people with the genetic mutation in groups of 900 is approximately 6.54.

Step-by-step explanation:

To find the standard deviation for the number of people with the genetic mutation in groups of 900, we can use the properties of the binomial distribution. The binomial distribution describes the number of successes (in this case, people with the genetic mutation) in a fixed number of independent Bernoulli trials (in this case, selecting people), each with the same probability of success.

In our case, we have:

n = 900 (number of trials, i.e., the number of people in each group)

p = 0.05 (probability of success, i.e., the probability of having the genetic mutation)

The mean (μ) and variance (σ²) of a binomial distribution can be calculated using the formulas:

μ = n * p

σ² = n * p * (1 - p)

We are interested in finding the standard deviation (σ), which is the square root of the variance:

σ = sqrt(σ²)

So, in our case:

σ = sqrt(900 * 0.05 * (1 - 0.05))

σ = sqrt(900 * 0.05 * 0.95)

σ ≈ sqrt(42.75)

σ ≈ 6.54

Thus, the standard deviation for the number of people with the genetic mutation in groups of 900 is approximately 6.54.

The standard deviation for the number of people with the genetic mutation in such groups of 900 is approximately 6.48.

To find the standard deviation for the number of people with the genetic mutation in groups of 900, you can use the formula for the standard deviation of a binomial distribution:

σ = √(n * p * (1-p))

Here, n = 900 (number of people randomly selected), p = 0.05 (5% of the population has the genetic mutation).

σ = √(900 * 0.05 * (1 - 0.05))
σ = √(45 * 0.95)
σ ≈ 6.48

The standard deviation for the number of people with the genetic mutation in such groups of 900 is approximately 6.48.

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we can only see a portion of the graph of this function in the standard viewing window of -10 to 10.

What is Graph ?

In mathematics, a graph is a visual representation of a set of objects, such as numbers or data points, and the relationships between them. Graphs can be used to represent a variety of mathematical concepts, including functions, sets of data, and geometric shapes.

The function f(x) = -|x| - 12 is a piecewise function. When x is greater than or equal to zero, the function simplifies to f(x) = -x - 12, and when x is less than zero, it simplifies to f(x) = x - 12.

If we graph both of these pieces separately, we get two straight lines that intersect at the point (0, -12), where the absolute value of x changes sign. The slope of both lines is -1, which means they are both downward sloping with a negative slope.

When we graph this function in the standard viewing window of -10 to 10, we can see the part of the graph where x is greater than or equal to zero, which is the left side of the graph, but the part where x is less than zero, which is the right side of the graph, is outside the viewing window.

Therefore, we can only see a portion of the graph of this function in the standard viewing window of -10 to 10.

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Answer:

1450

Step-by-step explain:

(35x35)+(15x15)

1225+225

In terms οf area οf circle the radius οf the circle becοmes, r = √(A/π)

In Mathematics  a circle is a special kind οf ellipse. In this particular kind οf ellipse the eccentricity is zerο and the twο fοci are cοincident. A circle is alsο stated as the lοcus οf the pοints which drawn at an equidistant frοm the center and the distance frοm the center οf the circle tο the οuter line(circumference) is the radius οf the circle.

The area οf a circle is given by A= π r² where r is the radius οf the circle and π= 3.14

Frοm the given equatiοn we have tο determine the value οf r that is the radius οf the circle.

A= π r²

Dividing by π tο the bοth sides οf the equatiοn we get,

⇒A/π = r²

⇒ r² = A/π [ Reversing bοth sides ]

Taking square rοοt tο the bοth sides οf equatiοn we get,

⇒ r= ±√(A/π)

Nοw radius οf a circle cannοt be negative sο the negative value will be neglected.

Hence, in terms οf area οf circle the radius οf the circle becοmes

r= √(A/π)

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Answer:

X= -3

Step-by-step explanation:

The equation of the line parallel to y-axis and passing through (-3, 3) is

x = -3

What is equation?

An equation is a mathematical statement that shows that two mathematical expressions are equal.

Given that, a line passing through (-3,3), parallel to the y-axis,

The slope intercept form is given by,

y = mx+c

Where, m is the slope and c is the y intercept.

When any parallel to x or y-axis, its slope is zero,

Therefore,

3 = 0x-3+c

c = 3

Therefore, y = 3

The question is asking for line parallel to x-axis and passing through (-3, 3)

Hence, the required equation is x = -3

The exponential function shown in the table has the equation y = 3 * 4x.

The general form of an exponential function is y = [tex]ab^x[/tex], where "a" is the initial value of y when x = 0 and "b" is the common ratio.

Using the given table, we can find "a" by looking at the value of y when x = 0, which is 3. So, a = 3.

To find "b", we can use the ratio of consecutive outputs:

b = y2 / y1 = 48 / 12 = 4

We can verify this ratio by also checking the ratio of y3 to y2:

b = y3 / y2 = 192 / 48 = 4

Therefore, the equation of the exponential function represented by the table is:

y = 3 * 4^x

where x is the input (the value of x in the table) and y is the output (the corresponding value of y in the table).

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As new evidence emerges, scientific theories are continually refined, revised, or even replaced. This ongoing process is essential to the advancement of scientific knowledge and understanding.

A series of testable hypotheses that are linked up in a coherent manner in order to explain a body of material evidence is called a scientific theory. A scientific theory is a well-substantiated explanation of a particular aspect of the natural world, based on empirical evidence and rigorous testing.

Here is a step-by-step explanation of how a scientific theory is developed:

1. Observation: Scientists observe a natural phenomenon or pattern in the world, gathering data and evidence.

2. Question: Based on the observations, scientists develop a research question to explore the phenomenon further.

3. Hypothesis: A hypothesis is a testable prediction or explanation for the observed phenomenon, derived from existing knowledge or understanding.

4. Experimentation: Scientists design and conduct experiments to test the hypotheses, collecting data and analyzing the results to determine if the hypothesis is supported or refuted.

5. Data Analysis: The data collected from the experiments is carefully analyzed, and any patterns or trends are identified.

6. Conclusion: Based on the data analysis, scientists draw conclusions about the validity of the hypothesis. If the hypothesis is supported, it can be incorporated into a broader scientific theory.

7. Peer Review: The scientific findings are shared with the broader scientific community, and other researchers independently review and assess the work to ensure its validity.

8. Replication: Other scientists attempt to replicate the experiments and findings to confirm the accuracy of the results.

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The Fahrenheit temperature of the can of soda, after 60 minutes, given the value of K would be 55°F.

We can use Newton's Law of Cooling formula to find the value of k:

58 = 35 + (73 - 35) x e ^ (-k x 40)

23 = 38 x e ^ (-k x 40)

23/38 = e ^ (-k x 40)

ln(23/38) = -k x 40

k = -ln(23/38) / 40 ≈ 0.010

Now that we have the value of k, we can find the temperature of the can of soda after 60 minutes (t = 60):

T = 35 + (73 - 35) x e ^ (-0.010 x 60)

T ≈ 35 + 38 x e ^ (-0.6) = 35 + 38 x 0.5488 = 54.856

The temperature of the can of soda after 60 minutes is approximately 55°F (rounded to the nearest degree).

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Answer:

The volume of the toy box is

60 × 24 × 30 = 43,200 cubic inches

12 inches = 1 foot, so

(12^3) cubic inches = 1,728 cubic inches =

1 cubic foot

43,200 cubic inches = 25 cubic feet

Answer: GRAPHED

Step-by-step explanation:

The value of B in continuous variable is 1/333.

Suppose x is a continuous variable with the probability density function f(x) = { B(10 - x)^2 for 0 < x < 10, and 0 otherwise.

To find the value of B, we need to use the fact that the total probability must equal to 1. In other words, we need to integrate the probability density function f(x) over the given interval and set it equal to 1:

∫[0,10] B(10 - x)^2 dx = 1

First, let's perform the integration:
∫(10 - x)^2 dx = [(-1/3)(10 - x)^3] + C
Now, apply the limits of integration:

[-(1/3)(10 - 10)^3] - [(-1/3)(10 - 0)^3] = 1
0 - [(-1/3)(10^3)] = 1
(1/3)(1000) = 1

Now, solve for B:
B = 3/1000 = 1/333
So, the value of B is 1/333.

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The general equation for the circle that would pass through the given points would be x^2 + y^2 + x + (7/12)y - 315/576 = 0.

To find the general equation of the circle that passes through the points (-5, 0), (0, 4), and (2, 4), we can use the following equation for a circle:

(x - h)^2 + (y - k)^2 = r^2

Express the equation in terms of x, y, h, k, and r:

(x^2 - 2hx + h^2) + (y^2 - 2ky + k^2) = r^2

x^2 + y^2 - 2hx - 2ky + (h^2 + k^2 - r^2) = 0

Plug in the coordinates of the three points:

(-5)^2 + 0^2 - 2h(-5) - 2k(0) + (h^2 + k^2 - r^2) = 0

0^2 + 4^2 - 2h(0) - 2k(4) + (h^2 + k^2 - r^2) = 0

2^2 + 4^2 - 2h(2) - 2k(4) + (h^2 + k^2 - r^2) = 0

Substitute the values of h, k, and r^2:

(x - (-1/2))^2 + (y - (-7/24))^2 = 585/64

(x + 1/2)^2 + (y + 7/24)^2 = 585/64

(x^2 + x + 1/4) + (y^2 + (7/12)y + 49/576) = 585/64

x^2 + y^2 + x + (7/12)y + (1/4 + 49/576 - 585/64) = 0

x^2 + y^2 + x + (7/12)y - 315/576 = 0

The general equation for the circle that passes through the points (-5, 0), (0, 4), and (2, 4) is:

x^2 + y^2 + x + (7/12)y - 315/576 = 0

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The area of the completed poster is 42 square units.

The answer is (c) 42 square units.

The area of a rectangle is the total amount of space or region enclosed within the boundaries of a rectangle.

It is measured in square units, which is the product of the length and the width of the rectangle.

The formula for calculating the area of a rectangle is:

Area = Length x Width

Here we have

Cara and Beejal make a poster for school.

The poster is in the shape of a rectangle. The left side of the poster measures 7 units; the top side of the poster measures 6 units.

The area of a rectangle is found by multiplying its length by its width.

In this case, the length of the poster is 7 units and the width is 6 units, so the area is:

Area = length × width

Area = 7 × 6

Area = 42 square units

Therefore,

The area of the completed poster is 42 square units.

The answer is (c) 42 square units.

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The probability of rolling no 2's and no 5's in 10 rolls is approximately 0.107.

The probability of rolling no 2's and no 5's on a fair die can be calculated using the formula for the probability of independent events:

P(A and B) = P(A) x P(B)

where P(A) is the probability of event A occurring, and P(B) is the probability of event B occurring.

The probability of rolling any number other than 2 or 5 on a single roll of a fair die is 4/6, or 2/3. Since each roll is independent, the probability of rolling no 2's and no 5's in n rolls can be calculated as follows:

P(no 2's and no 5's in n rolls) = (4/6)^n

To round the answer to three decimal places, we can use a calculator. For example, if n = 10, the probability is:

P(no 2's and no 5's in 10 rolls) = [tex](4/6)^10[/tex] = 0.107

So the probability of rolling no 2's and no 5's in 10 rolls is approximately 0.107, rounded to three decimal places.

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The surface area that can be painted with one complete rotation of the roller is 1508 inches².

Surface area is defined as the total amount of area that covers the surface or outside of a three-dimensional figure.

A paint roller is in the shape of a cylinder. To determine the surface area that can be painted with one complete rotation of the roller, solve for the surface area of a cylinder without the circular bases.

SA = 2πrh

where SA = surface area

r = radius of the base = 8 inches

h = height of the cylinder = width = 30 inches

Plug in the values and solve for the surface area.

SA = 2πrh

SA = 2π(8*30)

SA = 150.7.966 = 1508 inches²

Hence, the surface area that can be painted with one complete rotation of the roller is 1508inches².

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The sample size necessary such that the margin of error of the estimate for a 90% confidence interval for the mean age of all residents is at most 3.4 years is 59.56.

An estimated range for an unknown parameter is known as a confidence interval. The 95% confidence level is the most popular, however other levels, such as 90% or 99%, are occasionally used when computing confidence intervals.

Given: A city official would like to estimate the mean age of all residents of Stuart. The standard deviation of the ages of all residents of Stuart is known to be 16 years.

σ = 16 ..Population SD

The margin of error, E = 3.4

c = 90% = 0.90 ...confidence level

a = 1 - c = 1 - 0.90 = 0.1

a/2 = 0.1/2 = 0.05

Using the Z table,

z = 1.64

Now, sample size (n) is given by,

(za/E)²

(1.64×16/3.4)² = 59.56

Hence, the sample size necessary such that the margin of error of the estimate for a 90% confidence interval for the mean age of all residents is at most 3.4 years is 59.56.

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The Upper bound of this interval is 0.582.

To construct a 90% confidence interval to estimate the population proportion, we need to use the formula:

sample proportion ± z*√((sample proportion*(1-sample proportion))/sample size)

where z is the z-score corresponding to a 90% confidence level. Using a table or calculator, we find that the z-score is 1.645.

If the sample proportion is not given in the question, we cannot proceed with the calculation. However, assuming that the sample proportion is equal to 0.5 (which is a common assumption if no information is given), we can plug in the values:

0.5 ± 1.645*√((0.5*(1-0.5))/n)

If we assume a sample size of n = 100, then the confidence interval is:

0.5 ± 1.645*√((0.5*(1-0.5))/100) = 0.5 ± 0.082

Rounding to three decimal places, the confidence interval is [0.418, 0.582]. This means that we can be 90% confident that the true population proportion lies within this range. The upper bound of this interval is 0.582.

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Answer:

Step-by-step explanation:

The required common solutions of the given equations are x=-1 and x=3.

To find the common solution of the given equations graphically, we need to graph both f(x) and g(x) on the same coordinate plane and find the x-value(s) where the graphs intersect.

To graph f(x)=-x+5, we can start by plotting the y-intercept at (0,5), and then draw a straight line that goes down 1 unit for every 1 unit we move to the right.

To graph g(x)=x²-3x+2, we can start by finding the x-intercepts, which are the points where the graph crosses the x-axis. We can do this by factoring the quadratic equation: x²-3x+2=(x-1)(x-2). This gives us two x-intercepts at (1,0) and (2,0). We can also find the vertex of the parabola, which is at x=3/2. The graph of g(x) is a parabola that opens upwards, with its minimum point at (3/2,-1/4).

From the graph, we can see that the two functions intersect at two points, which are (-1, 6) and (3, 2).

Therefore, the common solutions of the given equations are x=-1 and x=3.

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Answer: 60 %

Step-by-step explanation:

To find what percent 144 is of 240, we can use the following proportion:

part/whole = percent/100

Let x be the percentage we are trying to find, then we can write:

144/240 = x/100

To solve for x, we can cross-multiply:

14400 = 240x

Dividing both sides by 240, we get:

x = 14400/240 = 60

Therefore, 144 is 60% of 240.

Answer:

60%

Step-by-step explanation:

Percent proportion:

240 - 100%

144 - x%

Cross-multiply to find x:

[tex] \frac{144 \times 100\%}{240} = \frac{14400}{240} = 60\%[/tex]

So, 144 is 60% of 240

Answer: Class 2

Step-by-step explanation:Because the median point is higher than class 1

From the boxplot of homework assignments data, the median number of submitted homework assignments by math class 2 to the Ms. chang is higher

A box with whisker plot also called a box plot, it is a graphical way of displaying the distribution of data based on a five number summary. The five numbers summary includes minimum, first quartile [Q1], median, third quartile [Q3] and maximum.

We have two box plots present in attached figure. Ms. chang tracked the submitted assignment by her class through the box plots. Here orange and blue box plots show the data of number homework assignments of her maths class 1 and class 2 submitted each day respectively. Now, see the box plot and use above discussed definition of median, we conclude that median number of class 1 = 25

Median number of class 2 = 26 > 25.

Hence, class 2 has a higher median number than class 1.

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Complete question:

The attached figure complete the question.

This equation tells us that the cost in dollars c is equal to the unit rate of $0.55 per green pepper.

what is linear equation?

A linear equation is a mathematical equation that represents a straight line when graphed on a coordinate plane. It is an equation of the form:

y = mx + b

where y is the dependent variable, x is the independent variable, m is the slope of the line, and b is the y-intercept (the point where the line intersects the y-axis).

To find the unit rate, we need to divide the total cost of the green peppers by the number of peppers purchased:

Unit Rate = Total Cost ÷ Number of Green Peppers

Unit Rate = $4.40 ÷ 8 = $0.55 per green pepper

Now, to write an equation relating the cost in dollars c to the number of green peppers p, we can use the unit rate we just calculated. We know that for each green pepper, the cost is $0.55, so we can write:

c = $0.55p

This equation tells us that the cost in dollars c is equal to the unit rate of $0.55 per green pepper, multiplied by the number of green peppers p being purchased.

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Answer: down beloe

Step-by-step explanation:

Well, you could see the rate of rebirth, and see

if it has been going up or down, then all you need to do is multiply that by 40 thousand