Answer:
i also don't know
Step-by-step explanation:
Mia and Rosa are on a bike ride. Mia's bike has a 29" diameter wheels and Ross's bike has 26" diameter wheels
Answer:
he wheels and wheels his bike he has 26 bikes in all the e mia has 29 in all
PLS HELP ASAPPPPPP TYSM
Answer:
71+10y
Step-by-step explanation:
++++++++++++++++++++++++++++++
PLEASE HELPPPPPPPPPPOPPP
The value of x° is 118°.
The value of y° is 96°.
What are corresponding angles?The angles that are in the same position on two parallel lines intersected by a transversal line on the parallel lines.
Corresponding angles are equal.
We have,
From the figure, we see that there are two parallel lines.
So,
118° and x° are corresponding angles
The value of x° = 118°
Now,
The angle x° makes a 180-straight angle along with the other angle P inside the triangle formed.
So,
X° + P = 180
118 + P = 180
P = 180 - 118
P = 62°
Now,
The sum of the angles in the triangle is 180.
y° + 62 + 22 = 180
y° = 180 - 84
y° = 96°
Thus,
The value of x° is 118°.
The value of y° is 96°.
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Solve for x.assume that all segment that appear to be tangent are tangent
The x = 2/5.we need to make use of the circle properties
To solve for x, we need to make use of the circle properties. Let us assume that all segments that appear to be tangent are tangent, which means that the lines are touching the circle at only one point and are perpendicular to the circle's radius. Now, let's consider the given diagram.
[asy]
size(100);
draw(circle((0,0),6));
draw((-6,0)--(6,0));
draw((0,-6)--(0,6));
draw((-3,4)--(3,-4));
draw((3,4)--(-3,-4));
draw((-6,0)--(3,-4));
draw((6,0)--(-3,4));
draw((0,0)--(3,4));
draw((0,0)--(-3,4));
draw((0,0)--(-3,-4));
draw((0,0)--(3,-4));
draw((0,0)--(6,0));
draw((0,0)--(-6,0));
[/asy]
Let P be the point of tangency of AB, AQ be the radius perpendicular to AB and O be the center of the circle. We know that, radius is perpendicular to the tangent at the point of tangency.
Therefore, ∠OQP = 90° and ∠OAQ = 90°
Therefore, ∠OQP + ∠OAQ = 180°
So, ∠OQA = 90°
In △OQA,
OA² = OQ² + AQ²
OA² = (4 + x)² + 4²
OA² = 16 + 8x + x² + 16
OA² = x² + 8x + 32
In △POB,
OB² = OP² + PB²
OB² = (6 - x)² + 2²
OB² = x² - 12x + 40
Since, OB = OA
So, OA² = OB²
x² + 8x + 32 = x² - 12x + 40
20x = 8
x = 2/5
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When a ball is thrown or kicked, the path it travels is shaped like a parabola. Suppose a football is kicked from ground level, reaches a maximum height of 25 feet, and hits the ground 100 feet from where it was kicked. Assuming that the ball was kicked at the origin, write an equation of the parabola that models the flight of the ball.
The equation of the parabola that models the flight of the ball is y = ax^2 + 25, where a can be any non-zero real number.
The equation of the parabola that models the flight of the ball can be expressed in the standard form: y = ax^2 + bx + c.
Since the ball is kicked from the origin, the equation simplifies to y = ax^2 + c.
To find the values of a and c, we can use the given information. The ball reaches a maximum height of 25 feet, which means the vertex of the parabola is at the point (0, 25). This gives us c = 25.
Now we need to determine the value of a. Since the maximum height occurs at the vertex, the x-coordinate of the vertex is 0. Additionally, we know that the ball hits the ground 100 feet from where it was kicked. The x-coordinate at that point is 100. Therefore, we can use the vertex form of the parabola equation, which is x = -b/2a, to find a.
Substituting the known values, we have 0 = -b/2a, which implies b = 0. Therefore, a can be any non-zero value.
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The population of a city decreases by 1% per year. If this year's population is 381,000, what will next year's population be, to the nearest individual?
According to a survey, 16.5% of men over the age of 30 in Jonesville work two or more jobs.
The survey had a margin of error of ±2.3%. Of the estimated 30,000 men over the age of 30 in
Jonesville, how many would you expect to work two or more jobs?
between blank & blank?
The number that one will expect to work two or more jobs will be between 4260 and 5640 people.
How to illustrate the information?It should be noted that according to a survey, 16.5% of men over the age of 30 in Jonesville work two or more jobs and the survey had a margin of error of ±2.3.
The minimum number that one will expect to work two or more jobs will be:
= (16.5 - 2.3)% × 30000
= 4260 people
The maximum number that one will expect to work two or more jobs will be:
= (16.5 + 2.3)% × 30000
= 5640
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4 1/2 as a improper fraction
Answer:
Step-by-step explanation:
4 1/2 = 9/2 improper fraction
Answer: 9/2
Step-by-step explanation:
What is the mean of the snowfall amounts?
16.9 inches
15 inches
15.9 inches
16 inches
Year Snowfall (inches)
1997 14
1998 10
1999 17
2000 24
2001 12
2002 19
2003 15
2004 27
2005 14
2006 17
Answer:
16.9
Step-by-step explanation:
14+10+17+24+12+19+15+27+14+17=169
169/10=16.9
Determine the value for AB
Answer:
x = 2
AB = 14
Step-by-step explanation:
2x(10) = 8(x+3)
20x = 8x + 24
subtract 8x from both sides
12x = 24
x = 2
Check:
4(10) = 8(5)
40 = 40
Correct
2x = 2 x 2 = 4
4 + 10 = 14
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
======================================================
Explanation:
Use the intersecting chord theorem
AO*OB = DO*OC
2x*10 = (x+3)*8
20x = 8x+24
20x-8x = 24
12x = 24
x = 24/12
x = 2
With that x value in mind, we can find the unknown lengths of each piece of each chord.
AO = 2x = 2*2 = 4DO = x+3 = 2+3 = 5Then notice how AO*OB = 4*10 = 40 while DO*OC = 5*8 = 40 as well. Both result in the same value (40) which helps verify the correct x value.
To wrap up the problem, we are looking for the length of chord AB, so,
AB = AO+OB = 4+10 = 14
what is the domain of a graph below?
Answer:
-4,0
Step-by-step explanation:
Which is the least metric mass?
0.0019 kg
0.19 g
190 cg
1900 mg
Answer:0.0019g
Step-by-step explanation:
COMPLETELY simplify the following. (Show Work) (Worth a lot of points)
Answer:
\(\frac{27y^6}{8x^{12}}\)
Step-by-step explanation:
1) Use Product Rule: \(x^ax^b=x^{a+b}\).
\((\frac{3x^{-5+2}{y^3}}{2z^0yx}) ^3\)
2) Use Negative Power Rule: \(x^{-a}=\frac{1}{x^a}\).
\((\frac{3\times\frac{1}{x^3} y^3}{2x^0yx} )^3\)
3) Use Rule of Zero: \(x^0=1\).
\((\frac{\frac{3y^3}{x^3} }{2\times1\times yx} )^3\)
4) use Product Rule: \(x^ax^b=x^{a+b}\).
\((\frac{3y^3}{2x^{3+1}y} )^3\)
5) Use Quotient Rule: \(\frac{x^a}{x^b} =x^{a-b}\).
\((\frac{3y^{3-1}x^{-4}}{2} )^3\)
6) Use Negative Power Rule: \(x^{-a}=\frac{1}{x^a}\).
\((\frac{3y^2\times\frac{1}{x^4} }{2} )^3\)
7) Use Division Distributive Property: \((\frac{x}{y} )^a=\frac{x^a}{y^a}\).
\(\frac{(3y^2)^3}{2x^4}\)
8) Use Multiplication Distributive Property: \((xy)^a=x^ay^a\).
\(\frac{(3^3(y^2)^3}{(2x^4)^3}\)
9) Use Power Rule: \((x^a)^b=x^{ab}\).
\(\frac{27y^6}{(2x^4)^3}\)
10) Use Multiplication Distributive Property: \((xy)^a=x^ay^a\).
\(\frac{26y^6}{(2^3)(x^4)^3}\)
11) Use Power Rule: \((x^a)^b=x^{ab}\).
\(\frac{27y^6}{8x^12}\)
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Answer:
\(\displaystyle \frac{27y^{6}}{8x^{12}}\)
Step-by-step explanation:
\(\displaystyle \biggr(\frac{3x^{-5}y^3x^2}{2z^0yx}\biggr)^3\\\\=\biggr(\frac{3x^{-5}y^2x}{2}\biggr)^3\\\\=\frac{(3x^{-5}y^2x)^3}{2^3}\\\\=\frac{3^3x^{-5*3}y^{2*3}x^3}{8}\\\\=\frac{27x^{-15}y^{6}x^3}{8}\\\\=\frac{27y^{6}x^3}{8x^{15}}\\\\=\frac{27y^{6}}{8x^{12}}\)
Notes:
1) Make sure when raising a variable with an exponent to an exponent that the exponents get multiplied
2) Variables with negative exponents in the numerator become positive and go in the denominator (like with \(x^{-15}\))
3) When raising a fraction to an exponent, it applies to BOTH the numerator and denominator
Hope this helped!
help me im really bad at math
Answer:
Greater than or >
Step-by-step explanation:
Since it is negative the -1/2 is greater than the -3.75
Hope this helps! Pls give brainliest!
Convert -3.75 to fractions
\(\\ \rm\rightarrowtail \dfrac{-375}{100}\)
\(\\ \rm\rightarrowtail \dfrac{-75}{20}\)
\(\\ \rm\rightarrowtail \dfrac{-15}{4}\)
\(\\ \rm\rightarrowtail -3\dfrac{3}{4}\)
Greater than sign should be usedIf southland is producing at point x, it can produce _____ more schools without giving up any movies. (note: enter your answer as a numeral.)
If Southland is producing at point X, to determine the number of additional schools it can produce without giving up any movies, we need to refer to the concept of production possibilities frontier (PPF).
The PPF represents the maximum output combination of two goods that an economy can produce with its available resources and technology.
In this case, movies and schools are the two goods being produced. If Southland is operating at point X on the PPF, it means it is efficiently allocating its resources to produce a certain quantity of movies and schools. To find out how many more schools can be produced without sacrificing any movies, we need to identify a point on the PPF that lies on the same movie production level as point X.
Let's assume that at point X, Southland is producing 10 movies. To determine the number of additional schools, we need to find a point on the PPF where the movie production level is also 10. Let's say at this point, Southland can produce 20 schools.
Therefore, the answer is 20 more schools.
If Southland is producing at point X and is currently producing 10 movies, it can produce an additional 20 schools without giving up any movies. This calculation is based on the assumption that the PPF remains constant and there are no changes in resource availability or technology.
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The track team sold 40 t-shirts. Short sleeve t-shirts sold for $9.90 and long sleeve
t-shirts sold for $12.75. In all, $421.65 was taken in.
How many short sleeve t-shirts were sold?
Answer:
The track team sold 31 short sleeved t-shirts.
Step-by-step explanation:
If there were 40 t-shirts sold, then you'd have to find how many short sleeved and long sleeved t-shirts were sold to get the amount of money made. Basically, all I did was start with 20:20. I multiplied the cost of each type of shirt by 20, however, the money from selling long sleeved t-shirts is a lot more than the actually amount. So then, I went to 30:10 with short sleeved and then long sleeved. The amount (when added together) was pretty close to the actual amount but it was still a tiny bit higher than the actual. So, I did 31:9 and the amount came out right.
What is significant about the ordered pair (0, 7): A. It lies on the origin B. It lies on the x-axis, C. It lies in quadrant II or D. It lies on the y-axis
Answer:
It lies on the y axis
Step-by-step explanation:
Given
\((0,7)\)
Required
How is it significant?
A coordinate point is represented as \((x,y)\)
In this case, we have that:
\((x,y) = (0,7)\)
i.e.
\(x = 0\)
\(y = 7\)
x being 0 and y being non zero (in this case, 7) implies that the point lies on the y axis
See attachment for point
Answer: It lies on the y axis
Step-by-step explanation:
Find the value of x
The value of x in the figure is 80 degree
How to find the value of xIn mathematics, an angle is a geometric shape formed by two rays, or line segments that share a common endpoint, called a vertex. The rays are often referred to as the arms or sides of the angle.
The size of an angle is measured in degrees, radians, or other units of measurement. and this is the wideness of the two rays.
In the figure the two rays are SM and SN and the value of the angle is 80 degrees.
Angles are an important concept in geometry and are used in many fields, including physics, engineering, and architecture.
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cliff divers dive headfirst at 8 feet per second from the top of a cliff 87 feet above the pacific ocean. during which time period will the diver's height exceed that of the cliff?
The cliff divers dive headfirst from the top of cliff. 1/2 or 0.5 second is the time period will the diver's height exceed that of the cliff.
Free Fall Object :An object that moves along the vertical axis due to gravitational acceleration is called a free-falling object. The free fall position is given by the following equation of motion:
yₜ = y₀ + v₀t + 1/2(at²)
Where y₀--> the initial height of the object
v₀--> the initial velocity
t --> time
a --> the acceleration due to gravity and is equal to a = g = - 32.2 ft²/sec
We have given that,
Initial velocity of divers , v₀ = 8 feet/sec
Initial Height of top of cliff , s₀ = 87 feet
position function, s(t) = - 16t²+ v₀t +s₀
Plugging all known values in above position function,
s(t) = -16 t² + 8t + 87
The the diver's height exceed that of the cliff means, s(t) > 87
=> -16 t² + 8t + 87 > 87
Subtract 87 from both sides, we get
-16t^2 + 8t > 0 , now we solve this inequality by changing it in a equality,
-16 t² + 8t = 0
=> -8 t( 2t - 1) = 0 => -8t = 0 , 2t -1 = 0
=> either t = 0 or t = 1/2
So the first half second, the person is above the height of the cliff.
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Complete question:
Use the position function s(t)-16t2+ vot +so position, t time) to answer the following: Divers in Acapulco, Mexico, dive headfirst at 8 feet per second from the top of a cliff 87 feet above the Pacific Ocean. During which time period will a diver's height exceed that of the cliff? (vo initial velocity, so initial.
The p-value is _____ or less if the chi-square statistic is 6.63 or more.
The p-value is 0.01 or less if the chi-square statistic is 6.63 or more.
The p-value is 0.01 or less if the chi-square statistic is 6.63 or more.
An analytical statistical technique for categorical data is the chi-square test. A set of variables expected and observed frequencies can be compared to see if there is a significant difference.
The chi-square statistic, which gauges the difference between observed and anticipated frequencies, serves as the foundation for the chi-square test. The test looks at whether there is a substantial difference between the observed and expected data.
Numerous disciplines, including biology, psychology, sociology, and business, can benefit from the chi-square test. Frequently, it is used to test theories relating to the interactions between two or more category variables.
There are various chi-square tests, including the likelihood ratio chi-square test and Pearson's chi-square test. The chi-square test by Pearson
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of the respondents, 519 replied that america is doing about the right amount. what is the 95 % confidence interval for the proportion of all american adults who feel that america is doing about the right amount to protect the environment.
The number of intervals that feel that America is doing about the right amount to protect the environment is 0.487, and 0.551 intervals
To find the number of adults who feel that America is doing about the right amount to protect the environment, we need to use the confidence interval proportion formula
CI = p ± Zα/2 * √(p * (1-p)/n
where:
p = sample proportion = 519/1000 = 0.519
n = sample size = 1000
Zα/2 = the critical value for the desired confidence level = 1.96
By substuting the values, we get:
CI = 0.519 ± 1.96 * √(0.519 * (1-0.519) / 1000)
= 0.519 ± 0.032
= (0.487, 0.551)
Therefore, (0.487, 0.551) interval feel that America is doing about the right amount to protect the environment.
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Find the 75th term of the arithmetic sequence -21, -10, 1
Answer:
793
Step-by-step explanation:
Arithmetic sequences are basically linear equations, so as input increase by one output always increases by the same amount. In sequences this is called common difference. To find it, just subtract one term by the term right before it.
So, -10--21=11 and also 1--10=11
so common difference is 11
now we will use the formula Asubn=Asub1+d(n-1)
D is Common difference and n is the term you're solving for. The n-1 is a result of the first term being in the formula. When one is plugged into n-1 you get zero and then multiply d by zero and you get zero and are left with Asub1
Anyways, Asub75=-21+11(75-1)=793
write the radical expression 8/7 sqrt^15 in exponential form
The radical expression can be written in an exponential form, as \(\frac{8}{7} \times (15)^{\frac{1}{2}}\).
What is an exponential expression or equation?An exponential equation or expression is an equation with exponents where the exponent (or) a part of the exponent is a variable.
The radical expression can be written in an exponential form, as follows
The given expression;
= (8/7) √15
The square root of a number = power of 1/2
8/7) √15 = \(\frac{8}{7} \times (15)^{\frac{1}{2}}\)
So in exponential form the expression is written as;
\(\frac{8}{7} \times (15)^{\frac{1}{2}}\)
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SOMEONE PlZZZZ HELP
A man whose height is 1.6 m casts a shadow that is 2.7 m in length. What is the approximate height of a building that casts a shadow of 11.1 m?
Answer:
I hope I'm thinking about this correctly, because I'm only 90% sure right now.
The answer is 18.73 meters.
Step-by-step explanation:
1) The shadow is longer (of course), and you are finding the proportion of the object's height to its shadow.
2) In your calculator, type 2.7/1.6; this will give you the proportion in a number.
3) Take that number (which is approx. 1.69 m), and multiply it by the height of the building.
4) 11.1 x 1.69 = 18.76 meters or 18.73 meters, depending on how you round.
If this wasn't clear, please let me know and I'll try to explain it differently.
Answer: 18.7
Step-by-step explanation:
I got it right on a quiz
Consider the given pseudo code. Write the function T(n) in terms of the number of operations, and then give the asymptotic (big Oh) complexity of the algorithm, show all the work you do. [ write the summation formula and solve it, or use the "Look for pattern"method. a. Matrix Multiplication
The function T(n) in terms of the number of operations is:
T(n) = 2n^3 + 3n^2 + 2n + 1 and the asymptotic complexity of the matrix multiplication algorithm is O(n^3).
To analyze the provided pseudo code for matrix multiplication and determine the function T(n) in terms of the number of operations, we need to examine the code and count the number of operations performed.
The pseudo code for matrix multiplication may look something like this:
```
MatrixMultiplication(A, B):
n = size of matrix A
C = empty matrix of size n x n
for i = 1 to n do:
for j = 1 to n do:
sum = 0
for k = 1 to n do:
sum = sum + A[i][k] * B[k][j]
C[i][j] = sum
return C
```
Let's break down the number of operations step by step:
1. Assigning the size of matrix A to variable n: 1 operation
2. Initializing an empty matrix C of size n x n: n^2 operations (for creating n x n elements)
3. Outer loop: for i = 1 to n
- Incrementing i: n operations
- Inner loop: for j = 1 to n
- Incrementing j: n^2 operations (since it is nested inside the outer loop)
- Initializing sum to 0: n^2 operations
- Innermost loop: for k = 1 to n
- Incrementing k: n^3 operations (since it is nested inside both the outer and inner loops)
- Performing the multiplication and addition: n^3 operations
- Assigning the result to C[i][j]: n^2 operations
- Assigning the value of sum to C[i][j]: n^2 operations
Total operations:
1 + n^2 + n + n^2 + n^3 + n^3 + n^2 + n^2 = 2n^3 + 3n^2 + 2n + 1
Therefore, the function T(n) in terms of the number of operations is:
T(n) = 2n^3 + 3n^2 + 2n + 1
To determine the asymptotic (big O) complexity of the algorithm, we focus on the dominant term as n approaches infinity.
In this case, the dominant term is 2n^3. Hence, the asymptotic complexity of the matrix multiplication algorithm is O(n^3).
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When Bob was born, his parents put $500 in an account to start saving money for college. Until now, the account has grown by about 6% annually. Assuming the same growth continues, you can use a function to describe the amount of money in the account when Bob is x years old.
If we want to know how much money will be in the account Bob is 18 years old, we can substitute x = 18 into the function:
A(18) = 500 × (1.06)¹⁸
To describe the amount of money in Bob's account when he is x years old, we can use exponential growth with the given annual growth rate of 6%.
Let A(x) represent the amount of money in the account when Bob is x years old.
We know that initially, when Bob was born, $500 was put into the account.
So, we have:
A(0) = $500
Since the account grows annually by 6%, we can express the growth rate as 1 + 6% = 1 + 0.06
= 1.06 (including the initial amount).
For each year that passes, the account grows by a factor of 1.06.
We can define the exponential growth function as:
A(x) = 500 × (1.06)ˣ
In this function, x represents the number of years since Bob was born, and A(x) gives us the amount of money in the account at that age.
Calculating this value will give us the amount of money in the account at that age.
Function assumes continuous compounding of interest and does not take into account any additional deposits or withdrawals made during the period.
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An analysis of variances produces dftotal = 29 and dfwithin = 27. for this analysis, what is dfbetween?
a. 1
b. cannot be determined without additional information
c. 3
d. 2
The value of dfbetween in the analysis of variances is 2. Thus option D is correct option.
According to the statement
we have given that the df total = 29 and df within = 27. And we have to find the value of the df between.
So, For this purpose, we know that the
Analysis of variance (ANOVA) is an analysis tool used in statistics that splits an observed aggregate variability found inside a data set into two parts.
So, Df between values are the values between the value of dftotal and dfwithin.
Here df total = 29 and df within = 27
So, df between = df total - df within
Substitute the values in it then
df between = df total - df within
df between = 29 - 27
df between = 2.
So, The value of dfbetween in the analysis of variances is 2. Thus option D is correct option.
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your favorite cereal has a little prize in each box. there are 5 such prizes. each box is equally likely to contain any one of the prizes. so far, you have been able to collect 2 of the prizes. what is the probability that you will get the third different prize in the next box you buy?
The probability of getting a different prize in the next box you buy is: P(A) = 3 / 5 = 0.6 or 60%.
The probability of getting a different prize in the next box you buy depends on the number of prizes left and the total number of prizes.
Since there are 5 prizes in total and you have already collected 2, there are 3 remaining prizes. The probability of getting a different prize in the next box you buy is 3 out of 5, or 60%. This is because each box is equally likely to contain any one of the prizes, and you have already collected 2 out of the 5 prizes.
To calculate the probability, you can use the formula: P(A) = number of favorable outcomes / total number of possible outcomes In this case, the number of favorable outcomes is 3 (the number of remaining prizes) and the total number of possible outcomes is 5 (the total number of prizes). Therefore, the probability of getting a different prize in the next box you buy is: P(A) = 3 / 5 = 0.6 or 60%
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someone help me on this question please!!
Answer:
56 degrees
Step-by-step explanation:
the total sum of the angles in a triangle is 180
90+34+b=180
b=180-124
=56
Answer:
56°
Step-by-step explanation:
The sum of interior angles in a triangle is equal to 180°.
The triangle shown in the image is a right triangle so one of the angle measure is 90°.
Given, the other angle is 34°, we can find the value of missing angle with the following equation:
Let x represent the missing angle.x + 90° + 34° = 180°
Add like terms.x + 124° = 180°
Subtract 124 from both sides.x = 56°
the length of a rectangle is nine inches more than its width. its area is 442 square inches. find the width and length of the rectangle.
If the length of a rectangle is nine inches more than its width and its area is 442 square inches, the width of the rectangle is 17 inches and its length is 26 inches.
Let's denote the width of the rectangle as "w" and its length as "l". From the problem statement, we know that:
l = w + 9 (since the length is nine inches more than the width)
The area of the rectangle is given by the formula:
A = l * w
Substituting in the expression for "l" in terms of "w", we get:
A = (w+9) * w
Simplifying, we get a quadratic equation:
w^2 + 9w - 442 = 0
We can solve this equation by factoring or using the quadratic formula. Factoring gives:
(w+26)(w-17) = 0
Therefore, the possible values for "w" are -26 and 17. However, since the width of the rectangle cannot be negative, we can eliminate -26 as a possible value. Thus, the width of the rectangle is 17 inches.
Using the expression for "l" in terms of "w", we can find the length:
l = w + 9 = 17 + 9 = 26 inches
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