Therefore , the solution of the given problem of unitary method comes out to be the fence's true length is about 17.92 feet.
Definition of a unitary method.Use the tried-and-true fundamental method, the actual variables, and any relevant information gleaned from general and specific questions to complete expression the assignment. Customers may be given another chance to taste the products in response. If these adjustments don't happen, we'll lose out on significant advancements in our understanding of programmes.
Here,
We can utilise the idea of proportions to determine the fence's actual length based on the scale drawing.
Given:
24 feet are represented by 3.75 inches at the given scale.
Let's establish a ratio:
=> 24 feet x 3.75 inches = 2.8 inches
where x represents the fence's real length.
If we cross-multiply, we obtain:
=> 24 feet * 2.8 inches * 3.75 inches
If we simplify, we get:
=> 3.75x = 67.2
By multiplying both sides by 3.75, we obtain:
=> x = 67.2 / 3.75
=> × ≈ 17.92 feet
Therefore, the fence's true length is about 17.92 feet.
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K
A survey was conducted that asked 1012 people how many books they had read in the past year. Results indicated that
x= 10.4 books and s= 16.6 books. Construct a 95% confidence interval for the mean number of books people read. Interpret
the interval.
Click the icon to view the table of critical t-values.
Construct a 95% confidence interval for the mean number of books people read and interpret the result. Select the correct
choice below and fill in the answer boxes to complete your choice.
(Use ascending order. Round to two decimal places as needed.)
OA. There is 95% confidence that the population mean number of books read is between
OB. If repeated samples are taken, 95% of them will have a sample mean between
OC. There is a 95% probability that the true mean number of books read is between
and
and
and
Option C: We can say with 95% confidence that the true mean number of books people read in the past year is between 9.41 and 11.39 books.
What is confidence interval?A confidence interval is a set of values created from a sample of data that, at a given level of confidence, are likely to include the true population parameter. It is employed to estimate a population parameter that is unknown, like the mean or proportion.
On the other hand, a prediction interval is a set of values that, given a certain level of confidence, are likely to include the value of an upcoming observation from the same population. Based on the sample data, it is used to forecast how a future observation will turn out.
The confidence interval is given by the formula:
CI = x ± t*(s/√n)
Now, for 95% confidence interval, the level of significance is α = 0.05.
Also, α/2 = 0.025 and t = 1.962 we have:
CI = 10.4 ± 1.962*(16.6/√1012)
CI = 10.4 ± 0.99
CI = (9.41, 11.39)
Hence, we can say with 95% confidence that the true mean number of books people read in the past year is between 9.41 and 11.39 books.
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Find the probability of drawing a green, then yellow, with replacement.
A bag has 4 green blocks, 6 red blocks, 7 blue and 3 yellow.
P (green, then yellow) = P(green) * P(yellow) = (4/20) * (3/20) = 0.03 or 3%.
What is Probability?Probability is a measure of the likelihood or chance of an event occurring. It is expressed as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. The probability of an event can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes. Probability is used in many areas of science, such as statistics, physics, and engineering, as well as in everyday life to make informed decisions based on the likelihood of various outcomes.
The probability of drawing a green block on the first draw is 4/20 (since there are 4 green blocks out of a total of 20 blocks in the bag).
Since the block is being replaced back into the bag after each draw, the probability of drawing a yellow block on the second draw is still 3/20.
Therefore, the probability of drawing a green block followed by a yellow block is:
P (green, then yellow) = P(green) * P(yellow) = (4/20) * (3/20) = 0.03 or 3%
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Convert: 83.36m= cm
pls help
Answer: 8,336
Step-by-step explanation:
So 1 meter is equal to 100 centimeters. All you have to do is multiply 83.36 by 100.
83.36 * 100 = 8,336
Hope this helps!!! :)
Find the value of x please.
choices are..
16
19
18
15
Answer:
We have supplementary angles.
123 + 3x = 180
3x = 57
x = 19
Answer:
x = 19
Step-by-step explanation:
Angle on a straight line add up to 180
123 + 3x = 180
3x = 180 - 123
3x = 57
3x/3 = 57/3
x = 19
Please help I’m confused
According to the information, f(x) = 5(x-3)(x+5) and g(x) = (x-3)(x+5).
How to find f(x) and g(x)?To have vertical asymptotes at x = 3 and x = -5, the denominator of the function must have factors of (x-3) and (x+5), respectively. We can write the denominator as g(x) = (x-3)(x+5).
To have a horizontal asymptote of y = 5, the degree of the numerator must be the same as the degree of the denominator. Also, the leading coefficients of the numerator and denominator must be equal. Therefore, we can write the numerator as f(x) = 5(x-3)(x+5).
The function can be written as:
f(x) 5(x-3)(x+5)
y(x) = -------------- = -----------------
g(x) (x-3)(x+5)
This function satisfies all the given conditions: it has vertical asymptotes at x = 3 and x = -5, a horizontal asymptote of y = 5, and is continuous for all x ≠ 3, -5. Therefore, f(x) = 5(x-3)(x+5) and g(x) = (x-3)(x+5).
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6 = 1/2 × z what is the value of z
Answer:
To solve for the value of z in the equation 6 = 1/2 × z, we can use algebraic manipulation. First, we can multiply both sides of the equation by 2 to eliminate the fraction:
2 × 6 = 2 × (1/2 × z)
Simplifying the right side:
12 = z
Therefore, the value of z is 12.
Step-by-step explanation:
An airplane took three trips. This table shows how many miles it traveled on each trip. How many miles did the airplane travel in all? Enter your answer in the box. to late 5,530 was the anwser
The airplane traveled a total of 5530 miles in all three trips.
What is addition?
Addition is one of the basic arithmetic operations in mathematics, which combines two or more quantities to produce a single quantity called the sum. The quantities being added are called addends, and the symbol used to represent the addition operation is the plus sign (+).
To find the total number of miles that the airplane traveled in all three trips, we need to add up the number of miles it traveled on each trip:
Total miles traveled = 2372 + 1283 + 1875
Total miles traveled = 5530
Therefore, the airplane traveled a total of 5530 miles in all three trips.
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Cooper went shopping for a new camera because of a sale. The store was offering a 25% discount. What number should he multiply the prices on the tags by to find the price he would have to pay, before tax, in one step?
well, let's say the regular price is "x", which oddly enough is the 100%, and we know the store is doing a 25% sale, that means the new prices are 100% - 25% = 75%, 75% of the regular price, so when buying item for "$x", the sale price will just be
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{75\% of x}}{\left( \cfrac{75}{100} \right)x}\implies \text{\LARGE 0.75}\cdot x[/tex]
Please help please show the step by step explanation:)
the decrease in emissions is due to the increase in alternative energy use. The alternative and nuclear energy use of the U.S. is given in the table below.
(Source: data.worldbank.org)
Year 2000 2003 2005 2008 2010 2011 2012
% of total
energy use 10.7696 10.6167 10.6213 11.1977 11.7184 11.9921 12.0645
Find a cubic model for this data and use it to predict the alternative energy use for 2016.
Make use of Excel, MATLAB, or Python to perform the curve fitting and find the cubic model for the given data.
How to solveTo find a cubic model for the given data, we can use the method of least squares to fit the data points into a cubic polynomial of the form:
y = ax^3 + bx^2 + cx + d
where y represents the percentage of alternative and nuclear energy use, x represents the year, and a, b, c, and d are the coefficients to be determined.
Given the data points:
(2000, 10.7696)
(2003, 10.6167)
(2005, 10.6213)
(2008, 11.1977)
(2010, 11.7184)
(2011, 11.9921)
(2012, 12.0645)
Make use of Excel, MATLAB, or Python to perform the curve fitting and find the cubic model for the given data.
Once you have the cubic model, you can plug in x = 2016 to predict the alternative energy use for 2016.
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change 52 out of 97 to a percentage? give your answer to one decimal place
Use a power-reducing identity to rewrite the following expression below in terms containing only first powers of cosine.
cos^3(x)
we can rewrite cos³(x) in terms of first powers of cosine as:
cos³(x) = (1/4)(3cos(x) + cos(3x))
What is power-reducing identity?
trigonometric identities that enable us to translate higher-order trigonometric expressions into lower-order trigonometric expressions.
We can use the power-reducing identity:
[tex]cos^3(x) = (1/4)(3cos(x) + cos(3x))[/tex]
To see how this identity is derived, we start with the double-angle identity:
[tex]cos(2x) = 2cos^2(x) - 1[/tex]
Rearranging this equation, we get:
[tex]cos^2(x) = (1/2)(1 + cos(2x))\\\\cos^3(x) = (1/2)cos(x)(1 + cos(2x))\\\\cos^3(x) = (1/2)cos(x) + (1/2)cos(x)cos(2x)\\\\cos^3(x) = (1/2)cos(x) + (1/2)cos(x)[2cos^2(x) - 1]\\\\cos^3(x) = (1/2)cos(x) + (1/2)(2cos^3(x) - cos(x))\\\\cos^3(x) = (1/4)(3cos(x) + cos(3x))[/tex]
Therefore, we can rewrite cos³(x) in terms of first powers of cosine as:
cos³(x) = (1/4)(3cos(x) + cos(3x))
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If y = x and y = 4, then what is (x + y)² ? A. 0 B. 16 C. 25 D. 64
Step-by-step explanation:
y = x and y = 4
(x + y)²
(4 + 4)² = (8)² = 64
radical form of a^2/5
help please
Answer:
The answer is ⁵√a²
Step-by-step explanation:
a⅖=⁵√a²
Triangle ABC with vertices at A(−1, −1), B(1, 1), C(0, 1) is dilated to create triangle A′B′C′ with vertices at A′(−3, −3), B′(3, 3), C′(0, 3). Determine the scale factor used.
1
one half
3
one third
The scale factor used to dilate triangle ABC with vertices at A(−1, −1), B(1, 1), C(0, 1) into triangle A'B'C' with vertices at A′(−3, −3), B′(3, 3), C′(0, 3) is 3.
What is a scale factor?In mathematics, a scale factor is a number that scales, or multiplies, some quantity. In the context of geometry, the scale factor is the ratio of lengths in a pair of similar geometric figures or the ratio of the areas of two similar geometric figures. When one figure is transformed into another by dilation, the scale factor is the ratio of the lengths of corresponding sides. The scale factor can be greater than 1, less than 1, or equal to 1 (meaning no change in size).
We can determine the scale factor by comparing the lengths of sides of the two triangles.
The length of side AB is,
AB = [tex]\sqrt{[(1 - (-1))^2 + (1 - (-1))^2]}[/tex] = [tex]\sqrt{8}[/tex]
Similarly the length of side A'B' is,
A'B' = [tex]\sqrt{[(3 - (-3))^2 + (3 - (-3))^2]}[/tex] = [tex]\sqrt{72}[/tex]
So the scale factor will be,
A'B' / AB = [tex]\frac{\sqrt{72} }{\sqrt{8} }[/tex] = [tex]\sqrt{9}[/tex] = 3
Therefore, the scale factor used to dilate triangle ABC into triangle A'B'C' is 3.
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The Monday relates to the Thursday so than, the Friday relation the ….? A: Tuesday B : Saturday C : Sunday D: Monday E:
Wednesday
Answer:
The correct answer is B: Saturday.
The relationship between Monday and Thursday is that they are two days apart in a typical Monday-to-Sunday week. Similarly, Friday is also two days apart from Tuesday in a typical week, so the relationship between Friday and Tuesday would be the same as the relationship between Monday and Thursday. Therefore, the correct answer is B: Saturday.
What is the surface area of this right triangular prism?
Enter your answer in the box.
Answer:
The surface area is 720 in^2
A rectangular garden will be fenced using 400 feet of fencing material. One side of the garden is partly covered by the barn and that part will not be fenced. If the barn is 50 feet long, what are the dimensions that will maximize the area of the garden? What is the largest possible area?
Answer:
The dimensions that maximize the area of the garden are 200 feet by 100 feet.
The largest area for the garden would be 20,000 square feet
Step-by-step explanation:
Let the length of the garden be x feet and the width be y feet. One side of the garden is adjacent to the barn, which is 50 feet long. Since only three sides need to be fenced, we can set up the following equation for the perimeter:
x + 2y = 400
We need to find the dimensions that will maximize the area of the garden, which is given by A = xy. First, we will express y in terms of x using the perimeter equation:
y = (400 - x) / 2
Now, substitute y in the area equation:
A(x) = x(400 - x) / 2
A(x) = (400x - x^2) / 2
To maximize the area, we need to find the critical points of the function A(x). We do this by taking the first derivative and setting it to 0:
A'(x) = (400 - 2x) / 2
A'(x) = 200 - x
Now, set A'(x) to 0 and solve for x:
200 - x = 0
x = 200
Now, substitute x = 200 back into the equation for y:
y = (400 - 200) / 2
y = 200 / 2
y = 100
So, the dimensions that maximize the area of the garden are x = 200 feet (length) and y = 100 feet (width). Now we can find the largest possible area:
A = xy
A = (200)(100)
A = 20,000 square feet
The largest possible area for the garden is 20,000 square feet.
Find ordered pairs y=-7x+8
The ordered pairs for the equation y = -7x + 8 are (0, 8), (1, 1), and (-1, 15).
What are the ordered pairs for the equation y?To find ordered pairs for the equation y = -7x + 8, we can substitute different values of x and solve for y.
Let's choose three values of x:
When x = 0, y = -7(0) + 8 = 8. So one ordered pair is (0, 8).
When x = 1, y = -7(1) + 8 = 1. So another ordered pair is (1, 1).
When x = -1, y = -7(-1) + 8 = 15. So another ordered pair is (-1, 15).
Therefore, the ordered pairs are (0, 8), (1, 1), and (-1, 15).
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Solve the inequality for x.
−8+ x/3>-7
Simplify your answer as much as possible.
Answer:
x > 3
Step-by-step explanation:
−8 + x/3 > -7
x/3 > 1
x > 3
We can't simplify anymore, so the answer is x > 3
The number is less than 9,000.
The number is even.
50% of the digits are even.
The digits in the thousand's place and the hundred's place are odd.
The digit in the thousand's place is the number of nickels in a quarter.
The difference between the digit in the thousand's
place and the hundred's place is four.
The digit in the hundred's place is the identity element for multiplication.
The digit in the ten's place is the number of sides on a quadrilateral.
The digital root of the number is seven.
Answer:
5146
Explanation:
There are 5 nickels in a quarter,
5 - 1 = 4,
There are 4 sides in a quadrilateral,
and 6 would make the digital root 7.
5146 -> 5 + 1 + 4 + 6 = 16
16 -> 1 + 6 = 7
A bag contains 26 letters and 10 numerals. Robin draws two cards from the
bag. What is the probability that she draws 2 numerals?
OA. 1/7
O B. 1/14
O C.1/63
D. 2/13
Answer:
On the first draw, there are 10 numerals out of 36 cards.
P(first card is a number) = 10/36 = 5/18
On the second draw, there are 9 numerals out of 35 cards.
P(second card is a number) = 9/35
The probability of both events is the product:
P(both cards are numbers) = P(first card is a number) x P(second card is a number)
= 5/18 x 9/35
= 1/2 x 1/7 (cancel a 5 and a 9).
= 1/14
Part of the proceeds from a garage sale was $340 worth of $5 and $20 bills. If there were 3 more $5 bills than $20 bills, find the number of each denomination.
There are 13 $20 bills and 16 $5 bills 6 in the collection.
System of linear equations:A system of linear equations is a set of two or more linear equations involving the same variables. The solution to a system of linear equations is the values of the variables that satisfy all the equations in the system.
To solve the following problem use variables and form linear equations according to the given conditions in the problem. Solve the equation for the values of variables.
Here we have
Part of the proceeds from a garage sale was $340 worth of $5 and $20 bills. There were 3 more $5 bills than $20 bills
Let's use variables to represent the number of $5 and $20 bills.
Let x be the number of $20 bills, then the number of $5 bills is x + 3.
The total value of the $20 bills is 20x,
The total value of the $5 bills is 5(x + 3) = 5x + 15.
According to the problem,
The total value of the bills is $340, so we can set up the equation:
20x + 5x + 15 = 340
Simplifying and solving for x, we get:
25x = 325
x = 13
Therefore,
There are 13 $20 bills and 16 $5 bills 6 in the collection.
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100 Points! Algebra question. Simplify. Photo attached. Thank you!
Thus, the solution of the given expression is found as [tex]2xy^{2} \sqrt{13xy }[/tex] using the prime factorization.
Explain about the prime factors:A natural number other than 1 whose only factors are 1 and itself is said to have a prime factor. In actuality, the initial set of prime numbers are 2, 3, 5, 7, 11, and so forth.
Nevertheless, we may also apply the so-called prime factorization, which actually involves using factor trees, for numbers. The technique of expressing all numbers as the product of primes is known as prime factorization.
Given that:
= [tex]\sqrt{52x^{3 }y^{5} }[/tex]
Find the prime factors of 52:
52 = 2 x 2 x 13
x³ = x².x
y⁵ = y².y².y
Put obtained values in expression:
= [tex]\sqrt{(2)(2)(13).x^{2 }.x.y^{2} .y^{2}. y }[/tex]
Now, for the value to take out of the square root, make a pair with the power two and bring it as 1.
= [tex]2xy^{2} \sqrt{13xy }[/tex]
Thus, the solution of the given expression is found as [tex]2xy^{2} \sqrt{13xy }[/tex] using the prime factorization.
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In 2014, Michelle's annual base salary was $87,000. She also earned 3% commission of her annual sales of $500,000. What was Michelle's income during 2014?
Answer: Michelle's income during 2014 was her base salary plus her commission.
Her commission was 3% of $500,000, which is 0.03 x $500,000 = $15,000.
So her total income for 2014 was $87,000 + $15,000 = $102,000.
Step-by-step explanation:
The base of a triangle is 3 inches shorter than twice the height. If the area is 10 inches squared,
what is the base and the height?
Answer:
height = 4 in
base = 5 in
Step-by-step explanation:
The area of a triangle can be found using the equation:
[tex]A = \frac{1}{2} bh[/tex]
where [tex]b[/tex] is the base of the triangle and [tex]h[/tex] is the base.
In order to plug into this equation, we need to use the relationship between the base and height. It is given that the base is 3 inches shorter than twice the height. Converting this to a mathematical equation:
[tex]b = 2h-3[/tex]
Since we are given that the area is 10 inches squared, we can now plug into the area equation to solve for the height (using the quadratic formula):
[tex]10 = \frac{1}{2} (2h-3)(h)\\2h^2 - 3h -20 = 0\\h = 4[/tex]
** We reject the negative solution of -5/2, since the triangle's height cannot be negative.
Now, we can simply plug in this height to solve for the base:
[tex]b = 2(4) - 3\\b = 5[/tex]
Express answers in terms of pi.
The radius of a cylinder is 10; the length is 2. Find:
a. circumference of the base.
b. area of the base.
c. L.A.
d. T.A.
e. V
Answer:
a. The circumference of the base is 2πr, where r is the radius of the cylinder. Therefore, the circumference of the base is:
2π(10) = 20π
So the circumference of the base is 20π.
b. The area of the base is πr^2, where r is the radius of the cylinder. Therefore, the area of the base is:
π(10)^2 = 100π
So the area of the base is 100π.
c. The lateral area of the cylinder is given by the formula 2πrh, where r is the radius of the cylinder and h is the height (or length) of the cylinder. Therefore, the lateral area of the cylinder is:
2π(10)(2) = 40π
So the lateral area of the cylinder is 40π.
d. The total surface area of the cylinder is the sum of the lateral area and the areas of the two bases. The area of each base is πr^2, which we already calculated to be 100π. Therefore, the total surface area of the cylinder is:
2(100π) + 40π = 240π
So the total surface area of the cylinder is 240π.
e. The volume of the cylinder is given by the formula πr^2h, where r is the radius of the cylinder and h is the height (or length) of the cylinder. Therefore, the volume of the cylinder is:
π(10)^2(2) = 200π
So the volume of the cylinder is 200π.
In the figure shown, triangle RST is similar to triangle UVW. Write an expression in terms of m and p that represents tan (R).
The value of tan(R) is 2/3
What is the trigonometric ratio?
The trigonometric functions are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. They are widely used in all sciences that are related to geometry, such as navigation, solid mechanics, celestial mechanics, geodesy, and many others.
using tan (θ) = opposite/Adjacent
Here, tan (R) = opposite/Adjacent
Where: opposite side = 14
Adjacent Side = 21
tan (R) = 14/21 = 2/3
tan (R) = 2/3
Hence, the value of tan(R) is 2/3
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The complete question is in the attached figure:
What is tan(R) =?
7.
Colin uses
cup of vegetable oil in each cake that he makes for his father's beker
If Colin made 8 cakes, how much oil did Colin use in all?
Mark only one oval.
I added 13:5
A. 51/3 cups
OB. 41/3 cups
OC. 51/2 cups
OD.41/2 cups
Spain
42°
The number of cups of vegetable oil used by Colin to make 8 cakes is given by A = 5 1/3 cups
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data,
Let the equation be represented as A
Now, the value of A is
Substituting the values in the equation, we get
Let the number of cups of vegetable oil used by Colin to make 8 cakes be represented as A
Now , the number of cups of vegetable oil used by Colin to make 1 cake is given by = ( 2/3 ) cups of oil
And , number of cups of vegetable oil used by Colin to make 8 cakes A =
A = 8 x number of cups of vegetable oil used by Colin to make 1 cake
On simplifying the equation, we get
[tex]\text{A} = 8 \times \huge \text{(} \dfrac{2}{3} \huge \text{)}= \dfrac{16}{3}[/tex]
[tex]\boxed{\bold{A = 5 \dfrac{1}{3} \ cups}}[/tex]
Therefore, the value of A is 5 1/3 cups
Hence, the number of cups of vegetable oil required is 5 1/3 cups
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Complete question is-
Colin uses 2/3 cup of vegetable oil in each cake that he makes for his father's bakery.
If Colin made 8 cakes, how much oil did Colin use in all?
A. 5 1/3 cups
B. 7 1/3 cups
C. 8 2/3 cups
D. 16 1/3 cups
In 1870, the French writer Jules Verne
In 1870, the French writer Jules Verne published his novel "Twenty Thousand Leagues Under the Sea", which tells the story of an underwater adventure aboard the submarine Nautilus.
Who is the French writer?The novel is considered one of Verne's most popular and well-known works, and it has been translated into many languages and adapted into numerous films, TV shows, and stage productions. "Twenty Thousand Leagues Under the Sea" is known for its imaginative portrayal of futuristic technology, such as the advanced submarine Nautilus, and its detailed descriptions of underwater life and exploration.
Therefore, The novel has also been praised for its themes of adventure, exploration, and the relationship between man and nature. It remains a classic in science fiction and adventure literature, and continues to be read and enjoyed by readers around the world.
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Find the area and perimeter of the parallelogram. (Hint: Don't forget your units!)
7 cm
8 cm
4 cm
The area of the parallelogram is 28 square centimeters and the perimeter of the parallelogram is 30 centimeters.
Finding the area and perimeter of the parallelogram.Given that
Length = 7 cm
Width = 8 cm
Height = 4 cm
The area of a parallelogram can be found by multiplying the base by the height. In this case, the base is the length of the parallelogram, which is 7 cm, and the height is the height of the parallelogram, which is 4 cm.
Therefore, the area of the parallelogram is:
Area = base x height = 7 cm x 4 cm = 28 cm^2
The perimeter of a parallelogram is the sum of the lengths of all four sides.
So, we have
Perimeter = 2 x (length + width) = 2 x (7 cm + 8 cm) = 2 x 15 cm = 30 cm
Therefore, the area of the parallelogram is 28 square centimeters and the perimeter of the parallelogram is 30 centimeters.
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