The constant variation rate is given as follows:
62.5 miles per hour.
What is a proportional relationship?A proportional relationship is defined as follows:
y = kx.
In which k is the constant of proportionality.
Hence we can solve for the constant as follows:
k = y/x.
In the context of this problem, the constant variation rate is the constant of the proportional relationship, obtained dividing one output by it's respective input, hence:
k = 375/6
k = 62.5 miles per hour.
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a random sample of 100 kernels is taken from a population in hardy-weinberg equilibrium. it is found that 9 kernels are yellow, and 91 kernels are purple. what is the frequency of the yellow allele in this population?
100 kernels are randomly selected from a population that is in Hardy-Weinberg equilibrium. 9 yellow kernels and 91 purple kernels are discovered. In this population, the yellow allele is 0.09 times more common.
Both citizens who are physically present in a country or who are temporarily away from it, as well as all foreigners who have permanently emigrated to that country, are included in the phrase "people." This indicator represents the population of a particular area. Growth rates are used to describe the differences in population that occur each year as a result of births, deaths, and net migration. In 2022, Russia had the highest population density in Europe—144.7 people per square mile. In terms of population size, Turkey came in second with 85 million people, followed by Germany with 83.4 million, the United Kingdom with 67.4 million, and France with 65.6 million. Vatican City has a population of just over 800, making it the world's least populous country. Vatican City is the smallest totally sovereign nation-state in the world.
The frequency is 9/10 or 0.09
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which of the following illustrates the abuse of respondents in marketing research? multiple choice selling unnecessary or unwarranted research services having friends and relatives fill out surveys not using the designated sample of respondents but rather anyone who is conveniently available to complete a survey not providing the promised incentive for completing interviews or questionnaires revealing one's clients to the respondents
An illustrates the abuse of respondents in marketing research is :
Not providing the promised incentive for completing interviews or questionnaires.
Definition of Marketing ResearchThe world organization body, the American Marketing Association (AMA), conveys the definition of marketing research is a function that connects customers, consumers, or the general public with marketers through information used to identify marketing problems and opportunities.
Meanwhile, Philip Kotler defines marketing research as the systematic design, collection, analysis, and reporting of data or findings that are relevant to a particular marketing situation faced by a company.
Simply put, marketing research is the identification, collection, analysis, and presentation of systematic and objective information to help companies make decisions related to problem solutions and find opportunities in the marketing process.
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Simplify the expression:
[tex]\frac{1-\frac{1}{y} }{\frac{1}{y} }[/tex]
The simplified form of the expression is y - 1.
What are Expressions?Expressions are mathematical statements which consist of two or more terms and terms are connected to each other using mathematical operators like addition, multiplication, subtraction and so on.
The given expression is (1 - [tex]\frac{1}{y}[/tex] ) / [tex]\frac{1}{y}[/tex]
The numerator of the expression can be written as below using the cross multiplication process.
1 - [tex]\frac{1}{y}[/tex] = (y - 1) / y
The whole expression becomes,
(1 - [tex]\frac{1}{y}[/tex] ) / [tex]\frac{1}{y}[/tex] = [(y - 1) / y] / [tex]\frac{1}{y}[/tex]
= (y - 1) / 1
= y - 1
Hence the simplified form is y - 1.
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After 16 years in an account with a 4.8% annual interest rate compounded continuously, an investment is worth a total of $38,744.77. What is the value of the principal investment? Round the answer to the nearest penny.
$18,068.73
$20,676.04
$17,975.25
$20,769.52
$18021 is value of the principal investment
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given that after 16 years in an account with a 4.8% annual interest rate compounded continuously an investment is worth a total of $38,744.77
We have to find the value of the principal investment
[tex]A=Pe^{rt}[/tex]
Where P is the principal amount, r is rate of interest and A is total amount.
[tex]38744.77=Pe^{0.048(16)}[/tex]
[tex]38744.77=Pe^{0.768}[/tex]
38744.77=2.15P
Divide both sides by 2.15
18021=P
Hence, $18021 is value of the principal investment
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Answer:
its the 1st option
Step-by-step explanation:
i jus took the test
Solve for x and y in the figure
below. (hint: write a system of
equations)
Check the picture below.
[tex]\begin{cases} ~\hfill 10x+(16y+6)=180\\\\ (4+18y)+(10x-6)=180 \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{using the 1st equation}}{10x+(16y+6)=180}\implies 10x+16y=174\implies 10x=174-16y \\\\[-0.35em] ~\dotfill[/tex]
[tex]\stackrel{\textit{substituting on the 2nd equation}}{(4+18y)+(10x-6)=180}\implies 18y+10x-2=180 \\\\\\ 18y+(\underset{10x}{174-16y})-2=180\implies 2y+172=180\implies 2y=8 \\\\\\ y=\cfrac{8}{2}\implies \boxed{y=4} \\\\\\ \stackrel{\textit{since we know that}}{10x=174-16y}\implies 10x=174-16(4)\implies 10x=110 \\\\\\ x=\cfrac{110}{10}\implies \boxed{x=11}[/tex]
HELP pls will mark you the brainliest
From the given graph solution of lines is (32, 5).
What is a linear system of equations?A system of linear equations consists of two or more equations made up of two or more variables such that all equations in the system are considered simultaneously. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.
To solve a system of linear equations graphically we graph both equations in the same coordinate system. The solution to the system will be in the point where the two lines intersect.
In the give graph two lines intersect at (32, 6).
Here, 32 represents the number of kites and 6 represents the total cost.
Therefore, from the given graph solution of lines is (32, 5).
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HELP TIIMED PLEASE HELP
what is the solution of x+4/2x-1 <0
The answer choices are a.) -4 <= x <= 1/2 b.) -4 < x <= 1/2 c.)-4<= x < 1/2 d.) -4 < x < 1/2
The solution to the inequality is x < -4
How to determine the solution to the inequalityFrom the question, we have the following parameters that can be used in our computation:
x+4/2x-1 < 0
Multiply both sides of the inequality
So, we have the following representation
x + 4 < 0
Subtract 4 from both sides of the expression
So, we have the following representation
x < -4
Hence, the solution is x < -4
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Which graph below does not represent a function of x? A B 5432 1 0 1 2 3 4 5 S43N 5 y 2 -5 -4 -3 -2 -1 0 -1 -2 24EN -4 -5 1 2 3 4 5 C D 5 3 2 0 1 2 3 4 5 5 737 7 4 2 1 -5-4-3 -2 -10 -1 N345 -2 -4 -5 DU 1 2 3 4 5
The graph that represents the compound inequality –3 < n < 1 is option C.
What is inequality?The two sides of a mathematical equation having an inequality must be equal. We compare two values via inequality rather than equations. The equal sign is replaced by the signs less than (or less than or equal to), greater than (or greater than or equal to), or not equal to.
The straight line from -3 to 1 with a hollow circle at the -3 point and the 1 point serves as the graph for the compound inequality -3 n 1. This is because n can only have values larger than -3, excluding -3, and less than -1, excluding -1, according to the symbol.
Therefore, the graph that represents the compound inequality –3 < n < 1 is option C.
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In ΔKLM, m = 63 inches, mm∠K=24° and mm∠L=42°. Find the length of l, to the nearest inch.
Check the picture below.
[tex]\textit{Law of sines} \\\\ \cfrac{sin(\measuredangle A)}{a}=\cfrac{sin(\measuredangle B)}{b}=\cfrac{sin(\measuredangle C)}{c} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{\sin(\measuredangle M)}{m}=\cfrac{\sin(\measuredangle L)}{l}\implies \cfrac{\sin(114^o)}{63}=\cfrac{\sin(42^o)}{l} \\\\\\ l\sin(114^o)=63\sin(42^o)\implies l=\cfrac{63\sin(42^o)}{\sin(114^o)}\implies l\approx 46~inches[/tex]
The volume of a gas halved during an adiabatic compression that increases the pressure by a factor of 2.5 What is the specific heat ratio?
A ratio in mathematics displays how often one number occurs in another and the given situation's specific heat ratio is 1.24.
What is the ratio?In mathematics, a ratio shows how frequently one number appears in another.
For instance, the ratio of oranges to lemons in a fruit plate would be eight to six if there were eight oranges and six lemons.
Oranges make up 8:14 of the total fruit, whereas lemons make up 6:8 of the total fruit.
So, e are informed that the volume is halved, and the pressure increases by a factor of 2.5.
We shall therefore have:
PVγ = 2.5P(0.5V)γ
We'll condense this to:
(1/0.5)γ = 2.5
γ = In2.5/In2
γ = 1.32
The volume temperature relation is written as follows if the volume expands in an adiabatic process:
T1V1∧γ-1 = T2V2∧γ-1
T1V1∧1.32-1 = T2(0.5V1)∧1.32-1
Condensing this results in:
T₁ = 1.24T₂
Therefore, a ratio in mathematics displays how often one number occurs in another and the given situation's specific heat ratio is 1.24.
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a rectangular bin 4 feet long, 3 feet wide, and 2 feet high is solidly packed with bricks whose dimensions are 8 inches by 4 inches by 2 inches. the number of bricks in the bin is
In the trash can, there are 648 bricks. when the measurements are 8 by 4 by 2 The right response is so (C).
This same total mass of a three-dimensional shape is referred to as its porous structure. A cuboid with six rectangular faces has a surface area equal to the sum of the areas of each face. The cuboid's length, width, and height can also be labeled, and indeed the surface area (SA) can indeed be calculated using the equation SA=2lw+2lh+2hw.
Based on this equation, surface area is equivalent to two times overall combination of width and length, two times its products of length and height, and two times the ratio of both height and width.
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8. A Caribbean resort has a nightly limbo contest on the beach. Participants must be less than 64 inches tall. The distribution of heights of adult American men is approximately normal with mean 69 inches and standard deviation 2.5 inches. a. What percent of adult American males could enter this contest? b. How tall would a man have to be for his height to be in the top 15% of this distribution of adult American men?
The percent of adult American males could enter this contest is 2.23%
What does "normal" describe in statistics?Normal usually refers to the word "normal" in a normal distribution.
The word normal is used when something occurs that has occurred frequently. The normal distribution is somewhat similar where the main observation (mean or its surrounding) occurs frequently and as we go far from the mean, its chances decrease.
We solve using z score formula
z = (x-μ)/σ,
where, x is the raw score = < 64 inches
μ is the population mean = 69
σ is the population standard deviation = 2.5
Here Participants must be less than 64 inches tall.
For x < 64 inches
z = 64 - 69/2.5
z = -2
Probability value from Z-Table:
P(x<64) = 0.02275
Converting to percentage;
= 0.02275 × 100
= 2.275%
Approximately = 2.23%
The participants must be less than 64 inches tall to participate in this limbo contest, the percent of adult American males thag could enter this contest is 2.23%
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Use the bar graph to find the experimental probability of the event.
Spinning a Spinner
12
10
8
642O
0
1 2 3 4 5 6
Number spun
The experimental probability of spinning a number less than 3 is
The experimental probability of spinning a number less than 3 is 0.46 or 46%.
What is probability?This can be defined as the likelihood an event occurs or does not occur. Most of the time, the probability is calculated based on the times a specific outcome is obtained versus the number of total outcomes.
What is the probability in this case?To know the probability, let's use the formula getting less than a 3/ total times:
Times they got less than 3: 23 (8+6+9= 23)
Total times: 50
23/50 = 0.46 or 46% (0.46 x 100)
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PLEASE HELP ANSWERR!!
Solving for a in the triangle gives a = 6
How to solve for the value a in the triangle?Trigonometry is a branch of mathematics dealing with the relationship between the ratios of the sides of a right-angled triangle with its angles.
The figure is a triangle. Since the sum of angles in a triangle is 180°. We can write:
106.2° + (3.8a + 29.7)° + (2.4a + 6.9)° = 180°
106.2 + 3.8a + 29.7 + 2.4a + 6.9 = 180
142.8 + 6.2a = 180
6.2a = 180 - 142.8
6.2a = 37.2
a = 37.2/6.2
a = 6
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Find the volume of the cone, height = 11cm radius = 6cm
Therefore , the solution of the given problem of volume comes out to be volume of cone is 132π cm³.
Describe volume.The volume of a three-dimensional item, which is measured in cubic units, describes how much room it occupies. Two examples of cubic units are cm3 and in3. The amount of matter in a thing is measured by its mass, on the other hand. The weight of an object is typically converted into mass quantities like pounds and kilograms.
Here,
Given :
=>height = 11cm
=> radius = 6cm
Volume of cone :
=> 1/3πr²h
=> 1/3*π * 36 * 11
=> 132π cm³
Thus , volume of cone is 132π cm³
Therefore , the solution of the given problem of volume comes out to be volume of cone is 132π cm³.
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a six foot person walks from the base of a streetlight directly toward the tip of the shadow cast by the streetlight. when a person is 16 feet from the streetlight and 5 feet from the tip of the streetlight's shadow, the person's shadow starts to appear beyond the streetlight's shadow. what is the height of the streetlight?
The height of the streetlight is 30 feet.
Let's call the height of the streetlight "h".
When the person is 16 feet from the streetlight, the length of their shadow will be 16 feet * (6 feet / h) = 96 feet / h.
When the person is 5 feet from the tip of the streetlight's shadow, the length of the streetlight's shadow will be h * (16 feet / 5 feet) = 3.2 * h.
Since the length of the person's shadow starts to appear beyond the streetlight's shadow when they are 5 feet from the tip of the streetlight's shadow, we know that 96 / h > 3.2 * h.
Solving for h, we get:
96 / h > 3.2 * h
96 > 3.2h
30 > h
So, the height of the streetlight is less than 30 feet.
To determine the exact height of the streetlight, we can use the equation:
96 / h = 3.2 * h
96 = 3.2h
30 = h
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5 cm
3 cm
7 cm
What is the surface area, in cm², of the figure shown above?
(1 point) a vertical right-circular cylindrical tank measures 7 ft high and 6 ft in diameter. it is full of kerosene weighing 51.2 pounds per cubic feet. how much work does it take to pump the kerosene to the level of the top of the tank?
Work done to pump the kerosene is equal to W = 126106 ft-lbs
"Information available from the question"
Height of the cylinder = 7 ft.
Diameter of cylinder = 8 ft.
Radius of the cylinder = 4 ft
Weight of the kerosene = 51.2 lb/ft³
Calculating the volume of cylinder for dy height
dV = π r² dy
dV = π 4² dy
dV = 16π dy
Force acting on the cylinder
dF = W x dV
dF = 51.2 x 16πdy...….(1)
We know
Work done = Force x displacement
Displacement = 7 - y
dW = 51.2 x 16πdy x (7 - y)
Now, integrating both side
[tex]\int\limits dW = \int\limits^7_0 {819.2\pi(7-y) } \, dy[/tex]
[tex]W = [819.2\pi (7-y)^2]^0_7[/tex]
By solving, we get
W = 126106 ft-lbs
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Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease
The rate of change of the exponential function in this problem represents a decay, and the rate of decrease is of 3.7%.
How to model the exponential function?A decaying exponential function is modeled as follows:
y = a(1 - r)^t.
In which:
a is the initial value.r is the decay rate, as a decimal.The function in this problem is given as follows:
y = 20(0.963)^x.
As 0.963 < 1, this is an exponential decay function, and the decay rate is given as follows:
1 - r = 0.963
r = 1 - 0.963
r = 0.037
r = 3.7%.
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Need help with trigonometry, please explain each step.
The ceiling for this problem is given as follows:
450 m.
What are the trigonometric ratios?The three trigonometric ratios are defined as follows:
Sine of angle = length of opposite side divided by the length of the hypotenuse.Cosine of angle = length of adjacent side divided by the length of the hypotenuse.Tangent of angle = length of opposite side divided by the length of the opposite side.The parameters for this problem are given as follows:
Part of ceiling of x.Adjacent side of 150 m.Angle of 71.5º.Hence the value of x is obtained as follows:
tan(71.5º) = x/150
x = 150 x tangent of 71.5 degrees
x = 448.3 m.
Adding 1.7 m, the ceiling is obtained as follows:
448.3 + 1.7 = 450 m.
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Which length and width are possible dimensions for the garden?
The length and width are possible dimensions for the garden is l = 20 ft; w = 10 ft.
Square & RectangleThe characteristics of a square and a rectangle in a flat shape are very different. Although both are rectangular, the nature and characteristics of these two buildings are different.
The difference between a square and a rectangle can be seen from the properties they have. These properties are also characteristics of squares and rectangles. For this reason, if we want to mention the difference between the two wakes, then we must know their characteristics.
Your question is incomplete but most probably your full question was:
Which length and width are possible dimensions for the garden?
l = 20 ft; w = 5 ft
l = 20 ft; w = 10 ft
l = 60 ft; w = 20 ft
l = 55 ft; w = 30 ft
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You and your sister are saving money from your allowances. You have $25 and you save $3 each week. Your sister has $40 and she saves $2 each week. In how weeks, you and your sister will have the same amount of money; and at the time, you both will have how much?
Answer:
15 weeks
Step-by-step explanation:
1 write an equation fore each
you sister
y=25+3x y=40+2x
y is total money and x is weeks
we want to find when they have the same amount of total money we set them equal to echother
25+3x=40+2x
-2x -2x
25+x=40
-25 -25
x=15
you will have the same amount as yore sister in 15 weeks
Answer:
see below
Step-by-step explanation:
you: 25 +$3 /week * x weeks
sis: 40 + 2/week * x weeks
they have to equal to each other
so 25 + 3x = 40 +2x
move x around & simplify
so x = 15
total 25+3*15 = 25+45 = 70
if the polynomial is divided by (x+4), the quotient is x^2-x+8, and the remainder is -6. Find the original polynomial
The original polynomial is x^3 - x^2 + 8x + 26.
How to find the original polynomialThe division of a polynomial by a linear factor (x + 4) can be reversed by multiplication:
f(x) = (x^2 - x + 8) * (x + 4) + (-6)
Expanding the product on the right-hand side, we get:
f(x) = x^3 - x^2 + 8x + 32 - 6
f(x) = x^3 - x^2 + 8x + 26
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Deion is in the business of manufacturing phones. He pays a cost of $50 per phone produced for materials and labor and also must pay a daily fixed cost of $200 to rent the building and equipment. Make a table of values and then write an equation for � , C, in terms of � , p, representing total cost, in dollars, of producing � p phones in a given day.
C = 200 + 50p is the equation represents the total cost, in dollars, of producing p phones in a given day.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given that Deion pays a cost of $50 per phone produced for materials and labor.
Deon also must pay a daily fixed cost of $200 to rent the building and equipment.
C = 200 + 50p
The above equation represents the total cost, in dollars, of producing p phones in a given day.
Number of phones (p) Total cost (C)
0 200
1 250
2 300
3 350
Hence, C = 200 + 50p is the equation represents the total cost, in dollars, of producing p phones in a given day.
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Please Help!!! Will mark brainliest!
Answer:
4th
Step-by-step explanation:
first is over y-axis and the linear translation: 6 horizontal and -5 vertical
eventually, the markov chain will end up in state 2. what is the probability that when the process moves into state 2, it does so from state 1?
For the markov chain will end up in state 2, the probability that when the process moves into state 2, it does so from state 1 will be calculated as:
Let,
[tex]\tau = \min\{n: X_{n+1}= 2\}[/tex]
Now,
[tex]p_{i,j} = P(X_{\tau}=i|X_{0}=j)[/tex]
We can observe that,
[tex]p_{0,0} = P(X_{\tau}=0|X_{0}=0) = \sum_{k=0}^{2}{P(X_{\tau}=0,X_{1}=k|X_{0}=0)} [/tex]
[tex]=\sum_{k=0}^{2}{P(X_{1}=k|X_{0}=0)P(X_{\tau}=0|X_{1}=k,X_{0}=0)}[/tex]
A Markov chain or Markov process is a stochastic model that depicts a series of potential events where each event's likelihood is solely determined by the state it reached in the previous event. This can be thought of colloquially as, "What happens next depends only on the situation right now. Discrete-time Markov chains (DTMC) are produced by a countably infinite sequence where the chain changes state at distinct time steps. A continuous-time Markov chain (CTMC) is a continuous-time process. It bears the name Andrey Markov after the Russian mathematician. As statistical representations of processes in the real world, Markov chains have numerous uses.
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when you solve a system of equations (i.e. two equations with two variables each), what possible form(s) could the solution take
The level of significance in hypothesis testing is the probability of:A. Accepting a true null hypothesisB. Accepting a false null hypothesisC. Rejecting a true null hypothesisD. None of these alternatives is correct
The correct option C. Rejecting a true null hypothesis, is the probability in significance level in hypothesis testing.
Explain about the null hypothesis significance testing?By testing an experimental component against a no effect or even no relationship hypothesis based on a specific observation, NHST is a statistical inference technique.
The idea that there is no influence on the population is known as the null hypothesis. We may refuse the null hypothesis if the sample contains sufficient data to refute the assertion that there is no effect with in population (p ).In the biological, biomedical, and social sciences, null hypothesis significance testing (NHST) continues to be the statistical technique of choice for presenting evidence of an effect.Thus, the likelihood of rejecting a valid null hypothesis determines the significance level in hypothesis testing.
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Use the two-way frequency table to complete the relative frequency table. Drag the numbers into the boxes.
According to the information, it can be inferred that the percentages are from left to right and from top to bottom the following: 27, 21, 49, 37, 14, 51, 64, 36, 100.
How to find the percentage that each value is equivalent to?Based on the information in the upper box, we must find the percentage to which each of the values in the lower box is equivalent. To find these percentages we must perform the following mathematical procedure:
1. We must make the rule of three in which the total equals 100%, then we must multiply each of the values in the upper box by one hundred and then divide it by 70.
With the previous procedure we will have the possibility of finding all the values as shown in the table below.
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What is the lateral surface area of the triangular prism shown below?
150 cm2
40 cm 2
190 cm2
170 cm2
The area of the triangular prism is calculated as; 170 cm²
How to find the Lateral Surface Area of the Prism?The given triangular prism when broken down is made up of;
2 triangles (top and bottom)
2 side rectangles
1 back rectangle
Formula for area of triangle = ¹/₂ * base * height
Formula for area of rectangle = length * width
Thus;
Area of trapezoid = 2(¹/₂ * 5 * 4) + 3(10 * 5)
Area = 20 + 150
Area = 170 cm²
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