Answer:
84% decrease
Step-by-step explanation:
100 - 80 = 20%
80% = 4/5
300 * 4/5 = 240
100 - 40 = 60%
60% = 3/5
240 * 3/5 = 48
48/300 = 4/25 = 16%
100 - 16 = 84%
17.
A quadrilateral has the following vertices on a coordinate plane:
Point J: (3-6)
Point K(-1,-6)
Point L:(-1,2)
Point M: (3, 2)
Enter the length of side JK.
units
Answer:
4
Step-by-step explanation:
substitute the given coordinates of J(3-6) and K(-1,-6) into the distance formula:
=> d = \(\sqrt{(-1-3)^{2} + (-6 + 6)^{2}}\)
=> d = \(\sqrt{16 + 0}\)
=> d = 4
What are the exact solutions of x2 − x − 4 = 0? (1 point)
The exact solutions of x² − x − 4 = 0 is calucalted as x = (1 + √(17)) / 2 and x = (1 - √(17)) / 2.
The given condition is x²- x - 4 = 0.
To discover the precise solutions to this condition, ready to utilize the quadratic equation:
x = (-b ± √(b² - 4ac)) / 2a
where a, b, and c are the coefficients of the condition. In this case,
a = 1, b = -1, and c = -4.
Substituting these values into the quadratic equation, we get:
x = (-(-1) ± √((-1)² - 4(1)(-4))) / 2(1)
x = (1 ± √(17)) / 2
Subsequently, the two correct arrangements for the condition are:
x = (1 + √(17)) / 2 and x = (1 - √(17)) / 2.
To check that these are the proper arrangements, ready to substitute them back into the initial condition and see in the event that they make the condition genuine. When we do this, we discover that both arrangements fulfill the condition and are hence the precise arrangements.
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Write a sentence of the form “–––––––––––––– is a function of –––––––.”
Type your response in the space below.
"Distance traveled is a function of time." In the context of motion or travel, the distance traveled is often dependent on the amount of time that has passed.
Distance is a fundamental concept in physics and mathematics that measures the extent or length between two points.
It represents the amount of ground covered or space traveled. When we say that distance is a function of various factors, it means that different variables or parameters can influence the distance traveled.
In the context of motion or travel, the distance traveled is often dependent on the amount of time that has passed.
The sentence "Distance traveled is a function of time" expresses this relationship, indicating that the distance traveled can be determined or calculated based on the value of time.
Thus, it implies that as time changes, the corresponding distance traveled also changes, establishing a functional relationship between the two variables.
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What is the area of the parallelogram 60ftx67ft-52ft
To find the area of a parallelogram, you need to multiply the base by the height. In this case, the given dimensions are 60ft (base) and 67ft (height), and you need to subtract 52ft from the height.
New height = 67ft - 52ft = 15ft
Area of the parallelogram = Base * Height = 60ft * 15ft = 900 square feet.
Therefore, the area of the parallelogram is 900 square feet.
~~~Harsha~~~
Michelle is a dentist. One-third of her patients are under the age of 12. Five-twelfths of her patients are over the age of 65. What fraction of Michelle’s patients are 12 to 65 years old?
A: 1/6
B: 3/4
C: 3/5
D: 1/4
Simplifying this fraction gives us 1/4. The answer is (D) 1/4.
What is arithmetic sequence?
An arithmetic sequence is a sequence of numbers in which each term after the first is found by adding a fixed constant number, called the common difference, to the preceding term.
Let's start by finding the fraction of Michelle's patients who are under 12 or over 65. We know that one-third of her patients are under 12, so two-thirds must be 12 or older. Similarly, five-twelfths of her patients are over 65, so seven-twelfths must be 65 or younger.
Now, we want to find the fraction of Michelle's patients who are between 12 and 65. To do this, we need to subtract the fraction of patients who are under 12 or over 65 from 1 (since these are the only two age groups we're considering).
Fraction of patients under 12: 1/3
Fraction of patients over 65: 5/12
Fraction of patients 12 to 65: 1 - 1/3 - 5/12
We can simplify this expression by finding a common denominator:
Fraction of patients 12 to 65: 12/12 - 4/12 - 5/12
Fraction of patients 12 to 65: 3/12
Simplifying this fraction gives us 1/4. Therefore, the answer is (D) 1/4.
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. Why is the following arrangment of squares not an array?
When it comes to arrays in mathematics, it usually involves objects or numbers that are arranged in rows and columns.In order for a set of squares to be considered an array, it must meet certain requirements. These requirements are:All rows must have the same number of squares. All columns must have the same number of squares. Squares must be organized in an orderly manner. A set of squares that does not meet these requirements is not an array.
An array is a set of objects or values that are organized in a specific order. It is used in programming, mathematics, and other fields to make data manipulation and analysis easier.
When it comes to arrays in mathematics, it usually involves objects or numbers that are arranged in rows and columns.In order for a set of squares to be considered an array, it must meet certain requirements. These requirements are:All rows must have the same number of squares. All columns must have the same number of squares. Squares must be organized in an orderly manner. A set of squares that does not meet these requirements is not an array.
For example, if a set of squares is arranged in a random or disorganized manner, it cannot be considered an array because it does not meet the orderly requirement. Additionally, if the number of squares in each row or column is different, it cannot be considered an array because it does not meet the uniformity requirement.
Overall, it is important to remember that an array is a specific type of organization and cannot be applied to any random set of objects or values.
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A=1/2(b1+b2) solve for b1
Given expression:
A = \(\frac{1}{2}(b_{1} + b_{2} )\)
Solve for b₁;
Solution:
This is a subject of the formula problem.
Given expression:
A = \(\frac{1}{2}(b_{1} + b_{2} )\)
First, multiply both sides by 2;
2 x A = 2 x \(\frac{1}{2}(b_{1} + b_{2} )\)
2A = b₁ + b₂
Then subtract b₂ from both sides;
2A - b₂ = b₁ + b₂ - b₂
b₁ = 2A - b₂
The solution is b₁ = 2A - b₂
solve 1/4 of 9 using a tape diagram
For 6 days this week, the number of defective golf clubs produced by a production line
were 210, 225, 206, 214, 180, 225. Find the mean number of defects per day.
Answer:
210
Step-by-step explanation:
The mean=210
When your doing mean next time this is how you do it. you add up all the numbers so 210 225 206 214 180 and 225. The you divide by the total of numbers so there are a total of 6 numbers.
When you add up all these numbers it has a total amount of 1,260.
so what is 1,260 divided by 6? It=210.
Would you like to also know mode median and range.
Median=212
When you do median you sort the list of numbers least to greatest and the middle number is median now since there are an even amount of numbers you would use 3 and 4 since were on 6 and do the middle between them 2 so 210 and 214.
The middle number between them is 212 and that's your answer,
Mode=All the numbers above and for the list of numbers here,all the numbers appear the same amount of times because dealing with mode,mode is the number or numbers that appears most in the data set,and for this one they all appear once.
Range=45
Range is the highest number-the lowest number so 225-180=45.
Minimum is 180 because minimum is the lowest number in the data set.
Maximum is 225 because maximum is the highest number in the data set.
Hope it helps have a great day:)
A yearly rent estimate of a building is Rs 5800. Of this 10% is exempt from tax for purpose of
repairs etc, and the remaining rent is liable to 10 ½% general tax,7 ¼% water tax, and 2 ¼ for
cleaning charges. What is the net monthly income from the building?
The building's net monthly income is Rs 396.36.
Calculating a property's monthly net income.The estimated yearly rent is Rs. 5800.
90% of the rent is subject to tax because 10% is exempt from tax for repairs, maintenance, etc.
9/10 of Rs. 5800 equals Rs. 5220
The following taxes are applicable to the remaining rent of Rs 5220:
10.5% of Rs. 5220 equals Rs. 548.10 in general tax.
7.25% of Rs. 5220 equals Rs. 378.15 for water tax.
Cleaning fees: 2.25 percent of Rs. 5220 equals Rs. 117.45
Rent taxes total: Rs. 548.10, Rs. 378.15, Rs. 117.45, or Rs. 1043.70.
Rent less total taxes equals the building's net yearly income:
5800 Rs - 1043.70 Rs = 4756.30 Rs
To find the net monthly income, we divide the net yearly income by 12:
Rs 4756.30 / 12 = Rs 396.36 (approx.)
Therefore, the net monthly income from the building is approximately Rs 396.36.
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I REALLY NEED HELP PLZ :(((((
Xavier performs the elementary row operation represented by \(R_{1} -\frac{1}{2} R_{2}\) on matrix A
What matrix results from this transformation?
Enter any fractions as simplified fractions.
Answer:
7 9/2 -6
Step-by-step explanation:
First you divide the bottom row by 2 then add the top row.
The matrix results from R₁ - 1/2R₂ transformation as
\(A=\begin{bmatrix} 7 & 9/2 & -6\\\end{bmatrix}\)
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions
We have been given that Xavier performs the elementary row operation represented by R₁ - 1/2R₂ on matrix A.
We have to determine matrix results from R₁ - 1/2R₂ transformation.
\(A=\begin{bmatrix}4 & 3 & 0\\-6& -3 & 12\\\end{bmatrix}\)
Apply the elementary row operation represented by R₁ - 1/2R₂ on matrix A.
\(A=\begin{bmatrix} 7 & 9/2 & -6\\\end{bmatrix}\)
Hence, the matrix results from R₁ - 1/2R₂ transformation as
\(A=\begin{bmatrix} 7 & 9/2 & -6\\\end{bmatrix}\)
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the coordinates of the point shown in fig 23.16 are (3,5)
Answer:
False
Explanation:
In the coordinate notation (x, y), the left entry represents the x-coordinate and the right entry the y-coordinate. Therefore, if we want to represent the point x = 5, y = 3, we would write
\((5,3)\)Hence, the representation (3, 5) does not represent the point x =5, y = 3, rather, it represents x = 3, y = 5, and therefore, the statement given is false.
A rectangle has an area of 352 ft2 and a width of 11 ft. What is
its length?
Answer:
The length of the rectangle is 32 feet.
Step-by-step explanation:
The area of a rectangle is found by length × width.
So to use the area to find the length, you divide it by the width.
352 ÷ 11 = 32
hope this helps :)
17 The table below shows the distance a car has traveled.
50
20
f
40
Minutes
Distance
Traveled
(in miles)
What is the meaning of the slope of the linear model for the data?
60
100
a) The car travels 5 miles every minute.
b) The car travels 4 miles every minute.
c) The car travels 4 miles every 5 minutes.
d) The car travels 5 miles every 4 minutes.
125
80
100
Given statement solution is :- None of the given options (a, b, c, or d) match the meaning of the slope. The correct interpretation is that the car travels approximately 0.8 miles every minute.
To determine the meaning of the slope of the linear model for the given data, let's analyze the information provided. The table represents the distance traveled by a car at different time intervals.
Minutes | Distance Traveled (in miles)
50 | 20
20 | f
40 | 60
100 | a
125 | 80
100 | 100
To find the slope of the linear model, we need to calculate the change in distance divided by the change in time. Let's consider the intervals where the time changes by a fixed amount:
Between 50 minutes and 20 minutes: The distance changes from 20 miles to 'f' miles. We don't have the exact value of 'f', so we can't calculate the slope for this interval.
Between 20 minutes and 40 minutes: The distance changes from 'f' miles to 60 miles. Again, without knowing the value of 'f', we can't calculate the slope for this interval.
Between 40 minutes and 100 minutes: The distance changes from 60 miles to 'a' miles. We don't have the exact value of 'a', so we can't calculate the slope for this interval.
Between 100 minutes and 125 minutes: The distance changes from 'a' miles to 80 miles. Since we still don't have the exact value of 'a', we can't calculate the slope for this interval.
Between 125 minutes and 100 minutes: The distance changes from 80 miles to 100 miles. The time interval is 25 minutes, and the distance change is 100 - 80 = 20 miles.
Therefore, based on the given data, we can conclude that the car travels 20 miles in 25 minutes. To determine the meaning of the slope, we divide the distance change by the time change:
Slope = Distance Change / Time Change
= 20 miles / 25 minutes
= 0.8 miles per minute
So, none of the given options (a, b, c, or d) match the meaning of the slope. The correct interpretation is that the car travels approximately 0.8 miles every minute.
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Your revenue (in dollars) for selling x hamburgers is given by f(x) = 5x and your profit is $20 less than 70% of the revenue. What is your profit for 24 sales?
The profit for 24 sales is $64.
The profit for 24 sales, we first need to calculate the revenue and then determine the profit based on the given information.
The revenue function is given as f(x) = 5x, where x represents the number of hamburgers sold.
To find the revenue for 24 sales, we substitute x = 24 into the revenue function:
Revenue = f(24)
= 5 × 24
= 120 dollars
Now, let's calculate the profit.
The profit is $20 less than 70% of the revenue.
We can express this mathematically as:
Profit = 0.7 × Revenue - $20
Substituting the value of Revenue we calculated earlier:
Profit = 0.7 × 120 - $20
= 84 - $20
= $64
We must first compute the revenue for 24 sales before calculating the profit based on the available data.
The revenue function is denoted by the formula f(x) = 5x, where x is the quantity of hamburgers sold.
We add x = 24 to the revenue function to get the revenue for 24 sales:
f(24) = 5 x 24 = 120 dollars is the revenue.
Let's now determine the profit.
The profit is $20 below the revenue's 70%.
This may be written mathematically as:
Revenue - $20 x Profit = 0.7
Substituting the earlier determined figure of Revenue:
Earnings = 0.7 x 120 - $20 = 84 - $20 = $64
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Use Pascal's Triangle to expand (x^2-3y)^4
Answer
The expanded form of (x²-3y)⁴ using Pascal's Triangle is x⁸ - 12x⁶y² + 54x⁴y⁴ - 108x²y⁶ + 81y⁸.
What is Pascal's triangle?Pascal's Triangle is a triangular array of numbers in which the value in each cell is the sum of the two numbers directly above it.
To expand the given expression (x²-3y)⁴ as per Pascal's triangle:
First, write down the fourth row of Pascal's Triangle as:
1 4 6 4 1
The above numbers represent the coefficients of the terms in the expansion of (a+b)⁴, where a is x² and b is -3y. Therefore, it can be written as,
1×(x²)⁴ + 4×(x²)³×(-3y) + 6×(x²)²×(-3y)² + 4×(x²)(-3y)³ + 1(-3y)⁴
Simplify each term,
x⁸ - 12x⁶y² + 54x⁴y⁴ - 108x²y⁶ + 81y⁸
Therefore, the expanded form of (x²-3y)⁴ using Pascal's Triangle is x⁸ - 12x⁶y² + 54x⁴y⁴ - 108x²y⁶ + 81y⁸.
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find fourier transform f(x)=1\|x|
Answer:
Step-by-step explanation:
lexi is making corn bread.
The recipe requires 2/3 cup of flour and 3 ¾ teaspoons of salt.
lexi wants to make the recipe using 1 cup of flour.
To maintain the ratio, how much salt is required when 1 cup of flour is used?
Answer:
If the original recipe requires 2/3 cup of flour and 3 ¾ teaspoons of salt, we can determine the amount of salt needed for one cup of flour using a proportion.
2/3 cup flour : 3 ¾ teaspoons salt
1 cup flour : x teaspoons salt
We can cross-multiply to get:
(2/3) * x = (3 ¾) * 1
2x/3 = 15/4
Multiplying both sides by 3/2:
x = (9/2) teaspoons of salt
Therefore, Lexi needs 9/2 or 4.5 teaspoons of salt when making corn bread with 1 cup of flour to maintain the ratio.
Is the given number a solution of the equation? Which value of d is a solution to the equation 13 – d = 8? 7 5 4 2
Answer:
d = 5 is a solution to the equation 13 - d = 8
Step-by-step explanation:
We have to solve 13 - d = 8
Now,
13 - d = 8,
We add d on both sides,
13 - d + d = 8 + d
13 = 8 + d
we subtract 8 from both sides,
13 - 8 = 8 - 8 + d
5 = d
d = 5
Hence the answer is 5
Can anyone help me with this question?
The two points of tangency are (-1,3) and (1,-3).
What is the equation of a tangent to the circle?
The equation of a tangent to a circle is a linear equation that describes a line that touches the circle at exactly one point, without crossing it. A tangent line is perpendicular to the radius of the circle at the point of contact.
Since the line T is tangent to the circle, the radius of the circle drawn to the point of tangency (-1,3) is perpendicular to the line T. Therefore, the center of the circle must lie on the line perpendicular to T at (-1,3).
The equation of the tangent line T can be found by taking the derivative of the equation of the circle and evaluating it at the point of tangency (-1,3):
2x + 2y(dy/dx) = 0
dy/dx = -x/y
At the point (-1,3), dy/dx = -(-1)/3 = 1/3. Therefore, the equation of the tangent line T is:
y - 3 = (1/3)(x + 1)
y = (1/3)x + 10/3
The slope of any line perpendicular to T is -3 (the negative reciprocal of 1/3). The point-slope form of the equation of a line with slope -3 passing through (-1,3) is:
y - 3 = -3(x + 1)
y = -3x
To find the points of tangency, we need to solve the system of equations consisting of the equation of the circle and the equation of the tangent line:
x² + y² = 10
y = -3x
Substituting y = -3x into the first equation, we get:
x² + (9x²) = 10
10x² = 10
x² = 1
x = ±1
Substituting these values of x into y = -3x, we get:
(-1,3) and (1,-3)
Therefore, the two points of tangency are (-1,3) and (1,-3).
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There are 5 rows of chairs with c chair in each row. Choose the expression that shows the number of chairs in total
Answer:
5(c)
Step-by-step explanation:
The number of chairs are being multiplying by each row.
If you need more help here's info.
Long multiplication is a method of multiplying two numbers which are difficult to multiply easily.
For example, we can easily find the product of 55 × 20 by multiplying 55 by 2 and then adding a 0 at the rightmost place of the answer.
55 × 2 = 110 and 55 × 20 = 1100.
But, many a time finding the product is not this easy. At such times we use the long method of multiplication.
Steps to multiply using Long Multiplication
Multiplying 2-Digit by 2-Digit Numbers
Let us multiply 47 by 63 using the long multiplication method.
1. Write the two numbers one below the other as per the places of their digits. Write the bigger number on top and a multiplication sign on the left. Draw a line below the numbers.
Find area of trapezium with height 8cm and the sum of its parallel sides as 15cm
Answer:
The Area of the trapezium is \(60cm^2\)
Step-by-step explanation:
Given,
Height (h)= 8cm
Sum of the parallel sides (a+b)= 15cm
Area of trapezium = \(1/2*h*(a+b)\)
=\(1/2*8*15\)
=\(4*15\)
Area of trapezium=60cm^2
Answer: Area = 60 cm²
Step-by-step explanation:
To find the area of a trapezium we use the formula
Area of trapezium = 1/2 (sum of parallel sides) × height
∴ Area = 1/2 ×15 cm × 8 cm
= 60 cm²
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5 apples cost 60p how much does 1 apple cost
Answer:
It will cost 12p a one apple
Solve 9(7x-2) = 5 (10x - 1)
Answer:
\(9(7x - 2) = 5(10x - 1) \\ \\ 63x - 18 = 50x - 5 \\ \\ 63x - 50x = - 5 + 18 \\ \\ 13x = - 5 + 18 \\ \\ 13x = 13 \\ \\ x = \frac{13}{13} \\ \\ x = 1\)
Answer:
\(9(7x - 2) = 5(10x - 1) \\ 9 \times 7x - 9 \times 2 = 5 \times 10x - 5 \\ 63x - 18 = 50x - 5 \\ 63x - 50x = - 5 + 18 \\ 13x = 13 \\ x = 1 \\ thank \: you\)
Aggie's bedroom is 8 meters wide. How many centimeters wide is her bedroom
Answer:
800 centimeters
Step-by-step explanation:
1 meter=100 centimeters
So multiply 8 meters times 100 centimeters and you get 800 centimeters.
I hope this helped!!!!!!
Answer:
800 Centimeters
Step-by-step explanation:
You multiply 8 by 100.
Given the system of equations. What is the X-value in the solution?
8x+ 3y = 7
4x+ 3y = 5
Answer
Answer:
x= 1/2
Step-by-step explanation: 8x+3y=7
-(4x+3y=5)
4x=2, and you get x=1/2
Patricia was having fun playing a card game. To win the game, she
needed the next two cards dealt to be yellow cards. There are 12
cards left in the deck, and three are[yellow.
What is the probability that the two cards dealt to Patricia will both
be yellow?
Answer:
25
%
Step-by-step explanation:
te puedes subcribirte a mi canal se llama navegando con incognito
The probability that the two cards dealt to Patricia will both be yellow
is 1/4.
What is the probability?In mathematics, probability refers to the likelihood of an occurrence occurring. Simply put, how frequently the incidence occurs over a certain period of time.
Given, there are 12 cards left in the deck, and three are yellow.
To find the probability:
The probability= number of yellow cards in the deck / total number of cards in the deck.
= 3/12
= 1/4
Therefore, the probability is 1/4.
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1. 18x^3-2x^2+4x-1
1.1 How many terms are in 18x^3-2x^2+4x-1
The polynomial 18x³ - 2x² + 4x - 1 consists of four terms.
The number of terms in a polynomial helps when performing operations like simplification, factoring, or evaluating expressions.
The polynomial 18x³ - 2x² + 4x - 1 consists of four terms.
In order to determine the number of terms in a polynomial, we count the number of distinct algebraic expressions separated by addition or subtraction operations.
In this polynomial, we have:
Term 1: 18x³ (This is the term with the highest degree, which is 3 in this case, and it includes the coefficient 18.)
Term 2: -2x² (This term has a degree of 2 and a coefficient of -2.)
Term 3: 4x (This term has a degree of 1 and a coefficient of 4.)
Term 4: -1 (This is a constant term with a degree of 0.)
We can see that there are four distinct terms separated by addition and subtraction operations:
18x³, -2x², 4x, and -1.
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I need a help with this hw
The values of the trigonometric ratios are: a) - 7/5, b) -75 c ) -1/5 d ) -25/12
What is trigonometric ratio?
Trigonometric ratios are measurements of the lengths of two sides of a triangle. There are three basic trigonometric ratios: sine, cosine, and tangent. Sine ratios are the ratios of the length of the side opposite the angle they represent over the hypotenuse
the give parameters are:
tanα = -4/3 where π/2 <α<π and sinβ = √3/2, 0<β<π/2
a) sin(α+β)
Using the trig ratios tan = opp/adj
but from pyth. rule, 4² + 3² = h²
16+9 = h²
h = √25 = 5
Now from trig Sin(α+β)
4/5 + 3/5
=- 7/5
b) cos(α+β)
cos = ad/hypo
4/5 + 3/5
= -7/5
c) Sin(α-β)
4/5 - 3/5
-1/5
d) tan(α-β)
= -4/3 - 3/4
= (-16 - 9)/ 12
-25/12
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Part 1 of 2
The length of a rectangular photograph is 9 in more than the width. If the area is 70 in², what are the dimensions of the photograph?
18
The dimensions of the photograph are the length= 14 in and the width= 5 in.
RectanglesThe rectangle is a quadrilateral. The classification for quadrilaterals is given by the length of sides and angles. For a rectangle, the opposite sides are equal and parallel and their interior angles are equal to 90°.
A rectangle is a geometric figure that has 4 sides called: base and height. Due to its characteristics, the rectangle presents two bases (B) and two heights (H).
The area of a rectangle is given by the multiplication between the base and the height.
The question gives:
length (base) = 9 + wwidth (height) = warea = 70 in²Thenm
A= b * h
70 = (9 +w) * w
70= 9w +w²
w²+9w-70=0
\(w_{1,\:2}=\frac{-9\pm \sqrt{9^2-4\cdot \:1\cdot \left(-70\right)}}{2\cdot \:1}\\ \\ w_{1,\:2}=\frac{-9\pm \:19}{2\cdot \:1}\)
Thus, \(w_{1}=\frac{-9-\:19}{2\cdot \:1}=\frac{-28}{2}=-14\) and \(w_{2}=\frac{-9+\:19}{2\cdot \:1}=\frac{10}{2}=5\)
The dimensions should have positive values, then w=5.
If w=5, the length will be 5+9 = 14. With these dimensions, the area will be 14 * 5 = 70.
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