The area of the rectangle is A = 172.5 m^2
The area of a rectangle can be found by using the formula A = lw, where l is the length and w is the width. In this case, we are given that the length is 8 meters more than twice the width, so we can let l = 2w + 8. We are also given the perimeter, which is the sum of the length and width multiplied by two, or 2l + 2w. We can set this equal to 46 and solve for w:
2(2w + 8) + 2w = 46
4w + 16 = 46
4w = 30
w = 7.5
Therefore, the width of the rectangle is 7.5 meters and the length is 2(7.5) + 8 = 23 meters. The area of the rectangle can then be found by substituting these values into the area formula:
A = lw
A = (23)(7.5)
A = 172.5 m^2
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identifying congruent triangles determine if the two triangles are congruent. if they are, state how you know.
Triangle ABC and triangle XYZ are not congruent because they do not have the same side lengths or angles. To be congruent, two triangles must have the same side lengths and the same angles.
To determine if two triangles are congruent, we first need to check if they have the same side lengths. If the two triangles have the same side lengths, then we can move on to check if the angles of the two triangles are the same. If the two triangles have the same side lengths and the same angles, then we can conclude that the two triangles are congruent. If the two triangles do not have the same side lengths and the same angles, then we can conclude that the two triangles are not congruent. In the case of triangle ABC and triangle XYZ, they do not have the same side lengths or angles, so they are not congruent. To be congruent, two triangles must have the same side lengths and the same angles.
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A convex octagon has interior angles with measures (x + 55)°, (3x +20)°, 4x°, (4x 10)°, (6x - 55)°, (3x +52)°, 3xº, and (2x + 30)°. Find the value of x.
Answer:
x = 38°
Step-by-step explanation:
sum of interior angle
=(n - 2 )180
=(8 - 2)180
=(6)180
=1080°.
the value of x
=(x + 55)° + (3x + 20)° + 4x° + (4x - 10)° + (6x - 55)° + (3x + 52)° + 3x° + (2x + 30)° = 1080°
= x + 3x + 4x + 4x + 6x + 3x + 3x + 2x + 55 + 20 - 10 - =55 + 52 + 30 = 1080.
=26x + 92 = 1080
=26x = 1080 - 92
=26x = 988
=26x/26 = 988/26
x = 38°
Which of the following has an answer that is a whole number?
1. v20
2. v15
3. v25
Answer:
3
Step-by-step explanation:
√25 = .5
Answer:
the answer is Number 3 = v25
Determine whether each claim about the properties of A’ B’ C’ D’ and ABCD is true or false quadrilateral A’B’C’ D’ is the result of dilating quadrilateral ABCD about point P by a scale of factor 3
The lengths of AD and A'D' are equal False
The area of ABCD and A'B'C'D' are equal False
How to determine the true statements
The complete question is added as an attachment
From the question, we have the following parameters that can be used in our computation:
The quadrilateral A’B’C’ D’ is the result of dilating quadrilateral ABCD about point P by a scale of factor 3
When a shape is dilated by a scale factor other than 1 or -1, the resulting shape would have a different area and a different side length
This implies that ABCD and its image do not have equal side length and equal area
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Evaluate x^ 4 • x^-1 when x = 4.
A 64
B 1,024
C 1
1024
D. 64
When x = 4, x⁴ × x⁻¹ will be 1. So correct option is C.
What do you mean by exponential?In mathematics, an exponential function is a function in which the variable (usually denoted by "x") is in the exponent. The most common exponential function is f(x) = b^x, where b is a constant called the base of the exponential function. For example, f(x) = 2^x is an exponential function with base 2. The graph of an exponential function is a curve that increases or decreases at an ever-accelerating rate as x increases. The exponential function is useful in many areas of mathematics and science, including finance, population growth, and radioactive decay.
To evaluate x⁴ × x⁻¹ when x = 4, we first substitute 4 for x in the expression:
x⁴ × x⁻¹ = 4⁴ × 4⁻¹
Now we can simplify the exponent by multiplying 4 × -1 = -4
x⁴ × x⁻¹ = 4⁴ × 4⁻⁴
Now we can simplify the exponent by applying the rule (aᵇ) × (aⁿ) = a⁽ᵇ⁺ⁿ⁾
x⁴ × x⁻¹ = 4⁽⁴⁺⁽⁻⁴⁾⁾
We now have 4⁰ which is equal to 1, so the final answer is 1.
Therefore the answer is C. 1
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3. write an equation in standard form to represent the amount charged, c, for m number of miles by the company in charlotte. (remember a cannot be negative and no fractions or decimals for any of the values) * 1 point your answer
The equation for the amount charged by the company in Charlotte for m number of miles is c = 2m + 25.
The equation in standard form to represent the amount charged, c, for m number of miles by the company in Charlotte is c = 2m + 5. This means that the cost of utilizing the company is $2 per mile plus a flat fee of $5.This equation is in standard form, in which c represents the amount charged, m represents the number of miles and 25 represents the flat rate fee. To calculate the cost of a certain number of miles, we first multiply the number of miles by 2, then add 25 to the result. For example, if m = 10, then c = 2(10) + 25 = 45. In other words, if someone in Charlotte wanted to travel 10 miles, they would be charged 45 dollars.
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given the following venn diagram, where a and b are each represented by an oval: exam image which regions make up ( aexam imagebc )c?
The correct answer is U - II = I + III + IV.
In order to solve problems based on these sets, we can use a Venn diagram to depict the logical relationship between sets and their components. Although other closed figures like squares may be used, a Venn diagram commonly uses intersecting and non-intersecting circles to indicate the relationship between sets.
c represent the compliment of the particular state.
U is the union set
∩ represent intersection between the neighbouring sets
Therefore,
Bc = U - B = I + II
Bc∩A = Area common in Bc and A = II
(Bc∩A)c = Area in U but not in (Bc∩A) = U - II = I + III + IV
So, answer is d.
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HELP PLS What is the mean absolute deviation of Leo's test scores?
The mean of the data is 31. Then the mean absolute deviation of Leo's test scores will be 9.
What is the mean absolute deviation?It is the average distance between each data point and the mean.
The mean absolute deviation is given as
[tex]\rm MAD = \dfrac{\Sigma _{i = 1}^n|x_i - \mu|}{n}[/tex]
The data is given below.
18, 26, 38, 42
The mean of the data is given as,
μ = (18 + 26 + 38 + 42) / 4
μ = 124 / 4
μ = 31
Then the mean absolute deviation is given as,
MAD = (|18 - 31| + |26 - 31| + |38 - 31| + |42 - 31|) / 4
MAD = (13 + 5 + 7 + 11) / 4
MAD = 36 / 4
MAD = 9
The mean absolute deviation will be 9.
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Substitute given values of variables and evaluate expression
The value of the the expression 3x - 2y when x = 2 and y = 1 is 4
How to calculate the expression?It is important to note that an expression is simply used to show the relationship between the variables that are provided or the data given regarding an information. In this case, it is vital to note that they have at least two terms which have to be related by through an operator. Some of the mathematical operations that are illustrated in this case include addition, subtraction, etc.
In this case, we want to find the expression 3x - 2y when x = 2 and y = 1. This will be:
= 3x - 2y
= 3(2) - 2(1)
= 6 - 2
= 4
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Complete question
Find the expression 3x - 2y when x = 2 and y = 1. Substitute given values of variables and evaluate expression
Suppose y varies directly with x. Write a direct variation equation that relates x and y. y=5 and x=2
The direct variation equation that relates x and y is 2y = 5x.
Direct variation:A type of proportionality known as "direct variation" occurs when one quantity directly changes in response to a change in another quantity.
This implies that if one quantity increases, the other quantity will also increase proportionately. Similarly, if one quantity decreases, the other amount also drops.
The symbol '∝' is used to represent the relation of Direct variation between two quantities.
Here we have
y varies directly with x
=> y ∝ x
=> y = kx ----(1)
where k is the proportionality constant
Given that x = 2 and y = 5
Now substitute given values in (1)
=> 5 = k(2)
=> 2k = 5
=> k = 5/2
Now substitute k = 5/2 in equation (1)
=> y = (5/2)x
=> 2y = 5x
Therefore
The direct variation equation that relates x and y is 2y = 5x.
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Enter the quotient of 4 2/3 and 3/4 in fraction form
The quotient of 4 2/3 and 3/4 in fraction form is 6 2/9.
An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.
There are three main categories of fractions in mathematics. Proper fractions, incorrect fractions, and mixed fractions are these three types. The expressions with a numerator and a denominator are called fractions. We categorize its types based on these two terms.
14/3 ÷ 3/4
⇒ 14/3 × 4/3
⇒ 56/9
⇒ 6 2/9
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If d represents the number of days taken to complete the work and p represents the number of people working, the equation that represents this situation is . If 10 people work on this job, they take days to complete it
Answer:
10d
Step-by-step explanation:
p = d
10p = ?
Cross multiply
(10pd)/p = 10d
Answer: The equation that represents the situation is d = k/p, where k is a constant.
This equation states that the number of days taken to complete the work (d) is inversely proportional to the number of people working on the job (p).
Given that 10 people work on the job and it takes them d days to complete it, we can substitute these values into the equation:
d = k/10
We don't know the value of k, so we can't find out the number of days it takes with 10 people working.
Step-by-step explanation:
Find the slope of the line that contains the points (2, -1) and (4, 7)?
Answer:
mx=4
Step-by-step explanation:
Following the slope formula y2-y1/x2-x1, we can find our solution. Follow steps in image.
-Hope this helped
An ice cream cone with a 2cm radius has a volume of 75.36 cubic cm how tall is the ice cream cone
Answer: 8.995437384 cm or roughly 9 cm
Step-by-step explanation:
V = 1/3 pi r^3 * h
75.36 = 1/3 pi 2^3 * h
h = 8.995437384 cm
evidence of climate change indicates each of the following earth vital signs have been on the rise except:
Climate change is causing an increase in air temperature, sea surface temperature, sea level, ocean acidity, and snow cover, but not humidity.
Humidity
Climate change is the long-term change in average weather patterns, and is caused by increased atmospheric concentrations of greenhouse gases. Earth's vital signs that have been on the rise due to climate change include air temperature, sea surface temperature, sea level, ocean acidity, and snow cover. Humidity is not one of these vital signs, and actually is expected to decrease in some areas due to climate change.
Climate change is causing an increase in air temperature, sea surface temperature, sea level, ocean acidity, and snow cover, but not humidity.
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Answer the question in the photo
Answer:
16.89 cubic inches
Step-by-step explanation:
r = 2.25/2 = 1.125
h = 4.25
[tex]\pi[/tex] = 3.14
V = h[tex]\pi[/tex]r^2
V = (4.25)*(3.14)*(1.125)^2
V = 16.889765625
an online retailer uses an algorithm to sort a list of n items by price. the table below shows the approximate number of steps the algorithm takes to sort lists of different sizes. a table is shown with 2 columns and 7 rows. the first row of the table contains the column headers, from left to right, number of items, number of steps. the table is as follows: 10, 100 20, 400 thirty, 900 forty, 1,600 fifty, 2,500 sixty, 3,600 based on the values in the table, which of the following best characterizes the algorithm for very large values of n ?
The algorithm appears to be an O(n^2) complexity algorithm, as the number of steps taken grows quadratically with the number of items n.
This can be demonstrated by calculating the slope of the line formed by the given values. The slope of the line formed by the given values is m = (3,500 - 100) / (60 - 10) = 33. This means that for every increase in the number of items of 10, the number of steps taken increases by 33. This indicates that the algorithm is O(n^2) complexity, as for every increase of 10 items, the number of steps taken increases by 33. This pattern will continue for larger values of n, meaning that for very large values of n, the algorithm will be O(n^2) complexity.
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Recent findings lend strong support to the theory that a black hole lies at the center of the Milky Way and of many of the 100 billion other galaxies estimated to exist in the universe.
(A) that a black hole lies at the center of the Milky Way and of
(B) that a black hole lies at the Milky Way's center and
(C) that there is a black hole lying at the Milky Way’s center and
(D) of a black hole lying at the Milky Way's center and
(E) of a black hole that lies at the center of the Milky Way and of
Recent findings have revealed strong evidence amount for the theory that there is a black hole that lies at the center of the Milky Way and of many other galaxies in the universe.
Recent scientific studies have provided strong evidence for the theory that there is a black hole lying at the center of the Milky Way and of many other galaxies in the universe. This theory is supported by findings such as the detection of gravitational waves caused by the collision of two black holes, which is indicative of the existence of black holes in the universe. Additionally, the discovery of high-energy X-ray emissions from regions near the center of the Milky Way suggests the presence of a supermassive black hole. These findings, combined with other evidence, provide strong support for the theory that a black hole lies at the center of the Milky Way and of many other galaxies in the universe.
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HELP PLEASE FAST!!!!!
Answer:
part a: y = -5/2 + 100
part b: because the line is descending from left to right, moving down by 5 units, and moving across by 2 units, the slope is -5/2. the y-intercept can be found by looking at the y-value where the line crosses the y-axis- which is 100.
part c: the slope represents the relation of a cellphone's battery percentage with the number of hours that pass.
Step-by-step explanation:
hope this helped, good luck!
Differentiation question please help step by step
Thus, we have shown that the equation [tex]\frac{d^2y}{dx^2} - 2tanx\frac{dy}{dx} = 0[/tex] is true using differentiation.
What is differentiation?A part from integration, differentiation is one of the two key principles. A technique for determining a function's derivative is differentiation.
Given y * cos x = e^x
By implicit differentiation, the first derivative is
-y * sin x + y' * cos x = e^x
By implicit differentiation, the second derivative is
-y cos x - y' sin x - y' sin x + y'' cos x
= e^x-y cos x - 2 * y' sin x + y'' * cos x
= e^x <--- combines the two like terms in the middle on left side
-y cos x - 2 * y' sin x + y'' * cos x = y * cos x <--- substitutes the original function y*cosx
= e^x-2y cos x - 2 * y' sin x + y'' * cos x = 0 <--- subtracts y*cos x from both sides
-2y - 2 * y' tan x + y'' = 0 <--- divides both sides by cos x
y'' - 2*tanx * y' - 2y = 0
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Find the values of x and y
The value of x = 4 and y = 5.
What is congruence?
In geometry, two figures or objects are said to be congruent if their shapes and sizes match, or if one is the mirror image of the other.
Here, we have
Given: triangles ABC and DEC are congruent, then:
3y + 1 = 4x
4y - 6 = 2x + 6
We need to solve the system of equations above.
Rearranging both equations:
-4x + 3y = -1 [1]
-2x + 4y = 12 [2]
Multiplying [2] by -2:
4x - 8y = -24 [3]
Adding [1] and [3]:
-5y = -25
Dividing by -5:
y = 5
Substituting in [1]:
-4x + 3(5) = -1
-4x + 15 = -1
Subtracting 15:
-4x = -16
Dividing by -4:
x = 4.
Hence, the value of x = 4 and y = 5.
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A ticket concert is on sale for $129. The sign sasy 14% off the original price. What was the original price?
Answer:
150
Step-by-step explanation:
x - .14x = 129
.86x = 129 Divide both sides by .86
x = 150
just before a presidential election, a national opinion poll increases the size of its weekly sample from the usual 1500 people to 4000 people. (a) Does the larger random sample reduce the bias of the poll result? Explain. (b) Does it reduce the variability of the result? Explain.
The larger random sample of 4000 people can reduce the bias and variability of the poll result by increasing the chances that the sample reflects the population accurately, reducing the effect of chance on the sample drawn, and increasing the precision of the estimate.
(a) Yes, the larger random sample can reduce the bias of the poll result. A larger sample size increases the chances that the sample accurately reflects the population by reducing the effect of chance on the sample drawn. This in turn reduces the likelihood of sampling bias, which occurs when a sample is unrepresentative of the population being studied.
(b) Yes, the larger random sample can reduce the variability of the result. A larger sample size increases the chances that the sample accurately reflects the population, which reduces the variability of the results. A larger sample size also increases the precision of the estimate, which reduces the variability of the results.
The larger random sample of 4000 people can reduce the bias and variability of the poll result by increasing the chances that the sample reflects the population accurately, reducing the effect of chance on the sample drawn, and increasing the precision of the estimate.
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Can’t figure this out
Question 1 Integrate each of the following:
(a) x² - 2x + 1/x²
(b) x(x + 3)²
Step-by-step explanation:
I've skipped some steps. Hope you get this.
Answer:
(a) [tex]\displaystyle{\int \left(x^2-2x+\dfrac{1}{x^2}\right) \, dx} = \dfrac{x^3}{3} - x^2 - \dfrac{1}{x} + \text{C}}[/tex]
(b) [tex]\displaystyle{\int x\left(x+3\right)^2 \, dx = \dfrac{x^4}{4} + 2x^3 + \dfrac{9x^2}{2} + \text{C}}[/tex]
Step-by-step explanation:
Part A
Consider the indefinite integral with respect to x:
[tex]\displaystyle{\int \left(x^2-2x+\dfrac{1}{x^2}\right) \, dx}[/tex]
We can separately integrate each terms as they are in addition and subtraction:
[tex]\displaystyle{\int x^2 \, dx - \int 2x \, dx + \int \dfrac{1}{x^2} \, dx}[/tex]
For the last term, we can rewrite in negative exponent as [tex]x^{-2}[/tex] so we can apply power rules to all these terms (making it easier):
[tex]\displaystyle{\int x^2 \, dx - \int 2x \, dx + \int x^{-2} \, dx}[/tex]
The middle term -- we can separate the constant out of integral:
[tex]\displaystyle{\int x^2 \, dx - 2\int x \, dx + \int x^{-2} \, dx}[/tex]
Apply the power integration rule (for n ≠ 1):
[tex]\displaystyle{\int x^n \, dx = \dfrac{x^{n+1}}{n+1} + \text{C} \ \ \left(\text{where C is a constant}\right)}[/tex]
But we can add C later after we integrate all these terms, therefore:
[tex]\displaystyle{\dfrac{x^{2+1}}{2+1} - 2\cdot \dfrac{x^{1+1}}{1+1} + \dfrac{x^{-2+1}}{-2+1}}\\\\\displaystyle{\dfrac{x^{3}}{3} - 2\cdot \dfrac{x^{2}}{2} + \dfrac{x^{-1}}{-1}}\\\\\displaystyle{\dfrac{x^3}{3} - x^2 - x^{-1}}[/tex]
Rewrite the negative exponent back to fraction form:
[tex]\displaystyle{\dfrac{x^3}{3} - x^2 - \dfrac{1}{x}}[/tex]
After integrating all terms, we add + C every time. Hence:
[tex]\displaystyle{\int \left(x^2-2x+\dfrac{1}{x^2}\right) \, dx} = \dfrac{x^3}{3} - x^2 - \dfrac{1}{x} + \text{C}}[/tex]
Part B
Consider the indefinite integration with respect to x of:
[tex]\displaystyle{\int x\left(x+3\right)^2 \, dx}[/tex]
First, expand (x + 3)² to x² + 6x + 9:
[tex]\displaystyle{\int x\left(x^2+6x+9\right) \, dx}[/tex]
Then disribute the x inside the brackets:
[tex]\displaystyle{\int \left(x^3+6x^2+9x\right) \, dx}[/tex]
Integrate separately:
[tex]\displaystyle{\int x^3 \, dx + \int 6x^2 \, dx + \int 9x \, dx}[/tex]
Separate the constants:
[tex]\displaystyle{\int x^3 \, dx + 6\int x^2 \, dx + 9\int x \, dx}[/tex]
For the power integration formula, recall above. Thus:
[tex]\displaystyle{\dfrac{x^{3+1}}{3+1} + 6 \cdot \dfrac{x^{2+1}}{2+1} + 9 \cdot \dfrac{x^{1+1}}{1+1}}\\\\\displaystyle{\dfrac{x^{4}}{4} + 6 \cdot \dfrac{x^{3}}{3} + 9 \cdot \dfrac{x^{2}}{2}}\\\\\displaystyle{\dfrac{x^4}{4} + 2x^3 + \dfrac{9x^2}{2}}[/tex]
Add + C after finishing the integration process, hence:
[tex]\displaystyle{\int x\left(x+3\right)^2 \, dx = \dfrac{x^4}{4} + 2x^3 + \dfrac{9x^2}{2} + \text{C}}[/tex]
Let me know if you have any questions!
FIND SLOPE OF THE EQUATION: 5y - 3x = 12
draw a rectangular box with the origin and (2, 4, 5) as opposite vertices and with its faces paralle find the length of the diagonal of the box.
The length of the diagonal of the rectangular box with the origin O(0, 0, 0) and A(2, 4, 5) as opposite vertices is 6.708203932499369.
Let the origin be O(0, 0, 0) and A(2, 4, 5).
The length of the diagonal of the box can be calculated using the distance formula.
Diagonal = √((2-0)^2 + (4-0)^2 + (5-0)^2)
= √(4 + 16 + 25)
= √45
= 6.708203932499369
1. We are given the coordinates of two opposite vertices of a rectangular box, the origin O(0, 0, 0) and A(2, 4, 5).
2. To calculate the length of the diagonal of the box, we need to use the distance formula.
3. The length of the diagonal can be calculated as Diagonal = √((2-0)^2 + (4-0)^2 + (5-0)^2)
4. By substituting the values of the coordinates in the formula, we get Diagonal = √45
5. Simplifying the expression, we get Diagonal = 6.708203932499369.
The length of the diagonal of the rectangular box with the origin O(0, 0, 0) and A(2, 4, 5) as opposite vertices is 6.708203932499369.
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Help with math! (Picture attached)
You can find the sales price history of a car by looking up the VIN
How do I find the original price of my car?D=P(1−E%) 2
Or equivalently:
D=P(1− E/100 )^ 2
The exponential depreciation equation is of the form y=P(1-r)^xy=P(1−r) X With PP the original value, rr the depreciation rate per period and xx the number of periods.
The Kelley Blue Book, as well as its equally prominent website, is one of the most reliable sources for vehicle price, utilized by individuals buying or selling cars. Kelley evaluates the following values: private party, trade-in, recommended retail, and certified pre-owned (CPO). Check the vehicle history record while looking for a secondhand automobile online. If the original car window sticker is submitted with the report, you may sometimes figure out the MSRP of a vehicle.
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Suppose you wanted to reach Alpha Centauri (4.4 ly from the Solar system) in 160 years How fast would you have to go, in km/hr?
If you want to reach Alpha Centauri you will need to go at a speed of 29,666,095,890,410 km/hr.
What is the distance to Alpha Centauri?Alpha Centauri is 4.4 lightyears away from your location, now let's convert this distance into kilometers:
1 lightyear = 9.46 trillion kilometers
4.4 x 9.45 trillion kilometers = 41.58 trillion kilometers
What should be the speed?Now, let's calculate the time available:
If there are 24 hours in a day, then in a year there are 24 x 365 = 8760, hours, which means in 160 years there are 1,401,600. Using this, calculate the speed:
41.58 trillion kilometers/ 1,401,600 hours = 29,666,095,890,410 kilometers per hour.
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a teacher is lecturing on excel macros. they plan to divide the class into groups of 5 and want each group to work on a unique exercise. to determine the number of exercises needed, model this situation with an equation, using x as the independent variable and y as the dependent variable.
In this situation, the independent variable is x, which is the number of groups, and the dependent variable is y, which is the number of exercises needed.
To model this situation with an equation, we need to calculate the number of exercises needed for each group. Since we have x groups, and each group needs a unique exercise, we can calculate the number of exercises needed by multiplying the number of groups by 5, since each group has 5 members. Thus, the equation would be y = 5x. This equation uses the fact that each group is made up of 5 members, so each group needs a unique exercise. In order to determine the number of exercises needed, we can solve the equation for x by dividing both sides by 5. This gives us x=y/5, which indicates that the number of exercises (x) is equal to the number of groups (y) divided by 5.For example, if we have 8 groups, then the number of exercises needed would be 5*8 = 40.In this situation, the independent variable is x, which is the number of groups, and the dependent variable is y, which is the number of exercises needed.
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