Answer:
n = 15
Step-by-step explanation:
A
the area (A) of a rectangle is calculated as
A = length × width
here length = n - 3 and width = 2 , then
A = 2(n - 3)
given A = 24 , then
2(n - 3) = 24
B
solving the equation for n
2(n - 3) = 24 ← divide both sides by 2
n - 3 = 12 ( add 3 to both sides )
n = 15
Please help me i have a screenshot
2 1/8 pints
2.125 pints
Question 4: You are creating an obstacle for a community event. The area of the
rectangular space is represented by the expression 8x² - 12x. The width of the rectangular
space is represented by the expression 4x.
Part A: Write an expression to represent the length of
the rectangular space. (1 pts)
Show all work to find the length (3pts)
6.03 & 6.04
Answer: Length of Rectangular Space (1 pt)
Part B: Prove your answer from Part A is correct by
multiplying the length and width of the rectangle. Show
all work (4 pts)
Answer (1 pt) Write the expression in standard form:
The expression to represent the length of the rectangular space is 2x - 3.
What connection exists between a rectangular space's area, length, and width?The product of the length and breadth makes up the area of a rectangular space. Area is defined mathematically as Length x Width. So, using the equation Length = Area / Width, we can determine the length of a rectangular space if we know its area and breadth. Instead, using the formula Width = Area / Length, we may determine the width of a rectangular region if we know its area and length.
Given that the width of the rectangle is 4x.
The Area of the rectangle is given as:
A = lw
Substituting the values we have:
8x² - 12x = 4x (Length)
l = 2x - 3
Hence, the expression to represent the length of the rectangular space is 2x - 3.
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Write the standard equation of an ellipse with vertices at (2,-2) and (12,-2) and covertices at (7,1) and (7,-5).
(a) (x-7)^2 / 25 + (y+2)^2 / 9 = 1
(b) (x+7)^2 / 25 + (y-2)^2 / 9 = 1
(c) (x-7)^2 / 9 + (y+2)^2 / 25 = 1
(d) (x+7)^2 / 100 + (y-2)^2 / 36 = 1
(e) (x-7)^2 / 100 + (y+2)^2 / 36 = 1
The correct answer is (a) (x-7)^2 / 25 + (y+2)^2 / 9 = 1.
The standard equation of an ellipse is (x-h)^2 / a^2 + (y-k)^2 / b^2 = 1, where (h,k) is the center of the ellipse, a is the distance from the center to the vertices, and b is the distance from the center to the covertices.
In this case, the center of the ellipse is the midpoint of the vertices and covertices, which is (7, -2). The distance from the center to the vertices is 5 (12-7) and the distance from the center to the covertices is 3 (1-(-2)).
Therefore, the standard equation of the ellipse is (x-7)^2 / 25 + (y+2)^2 / 9 = 1, which corresponds to answer choice (a).
So the correct answer is (a) (x-7)^2 / 25 + (y+2)^2 / 9 = 1.
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find the sale price of a $36 item after a 50% discount
Answer:$18
Step-by-step explanation: Since 50% is half of a hundred and the item is half off, you multiply 36 by 0.5 and get $18. This is the price of the item with the sale and the the discount
Answer:
18$
Step-by-step explanation:
go to Safari and look it up is how I got the answer
Multiply.
2 1/4 x 5
Answer with a mixed number in simplest form.
Answer: 11 1/4
Step-by-step explanation:
To multiply fractions, you must use the improper form so...
2 1/4 x 5 =
9/4 x 5 =
45/4 =
11 1/4
Hope this helps!
A quadrilateral has two angles that measure 216° and 102°. The other two angles are in a ratio of 10:11. What are the measures of those two angles?
(I would do this, but I'm in a rush right now sorry!)
Answer:
20° and 22°
Step-by-step explanation:
Quadrilaterals are shapes with 360°. Since we are given two known angles, we can subtract them from 360. 360 - 216 - 102 = 144 - 102 = 42
Because the others are in a ratio of 10:11, the only possible degree combination will be 20° and 22°
When 3x^(2)-22x+26 is divided by a polynomial, the quotient is 3x-4 and the remainder is 2 . Find the polynomial.
The polynomial that 3x^(2)-22x+26 is divided by is x - 6.
To find the polynomial that 3x^(2)-22x+26 is divided by, we can use the formula:
Dividend = Quotient * Divisor + Remainder
In this case, the dividend is 3x^(2)-22x+26, the quotient is 3x-4, and the remainder is 2. We can plug these values into the formula and solve for the divisor:
3x^(2)-22x+26 = (3x-4) * Divisor + 2
Next, we can rearrange the equation to isolate the divisor:
Divisor = (3x^(2)-22x+26 - 2) / (3x-4)
Divisor = (3x^(2)-22x+24) / (3x-4)
Now, we can use polynomial long division to find the divisor:
```
3x - 4 | 3x^2 - 22x + 24
- (3x^2 - 4x)
-------------
-18x + 24
- (-18x + 24)
-------------
0
```
Therefore, the divisor is x - 6.
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What is the value of m
Answer:
Step-by-step explanation:
Ok so we're just going to be doing a lot of supplementary work:
The angle adjacent to 85 degrees is equal to 180 - 85 = 95
We want to find the angle measures in the triangle where 95 degrees is. We can do this by using 40, finding the opposite angle, which is also 40 due to vertical angles theorem, finding the missing angle in the right-most triangle which is 180 - 105 - 40 = 35
Using vertical angles theorem again, we know the angle opposite 35 degrees is also 35. We found another angle for the middle triangle.
The missing angle for the middle triangle is 180 - 35 - 95 = 50
The angle opposite 50 is 50 because of the vertical- you already know.
Now the left triangle has angles Z, 60 and 50.
m<Z = 180 - 60 - 50
m<Z = 70
Hope this helps!
Distributive Property of 7/8(4+8b)
Answer: 7/2 + 7b
Step-by-step explanation:
When applying the distributive property, you want to start by identifying which value you are distributing. That value in this case will be 7/8.
7/8 is going to be multiplied with 4, then multiplied with 8b, and you will then find the sum of those to products:
( (7/8) * 4 ) + ( (7/8) * (8b) )
The first product simplified will be 7/2.
The second product simplified will be 7b.
The sum of those two products is: 7/2 + 7b.
Hope this helps.
Does someone mind helping me with this problem? Thank you!
The amount we would have after 40 years will be $8183.27
What is an exponential growth?Exponential growth is a pattern of data that shows greater increases with passing time, creating the curve of an exponential function.
Given that, an amount increasing exponentially every two years and with a rate of 15% and the amount is $500, we need to find the amount we would have after 40 years.
Since, the amount is increasing exponentially every two years, therefore,
T = 40 / 2 = 20 years
A = P(1+0.15)²⁰
A = 500(1+0.15)²⁰
A = 500(1.15)²⁰
A = 8183.27
Hence, the amount we would have after 40 years will be $8183.27
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Ps show work :D
Will mark BRAINLIST!!!
Given trigonometric equation is equal to 2 so the it has been proved.
what is trigonometric identity?
A trigonometric identity is a mathematical equation that expresses a relationship between trigonometric functions of an angle. These identities are true for all values of the angle, and they allow us to simplify expressions involving trigonometric functions, manipulate them algebraically, or evaluate them more easily.
Trigonometric identities include basic relationships such as [tex]sin^2(x) + cos^2(x) = 1,[/tex] as well as more complex identities involving multiple functions such as the Pythagorean identity.
According to the question:
Let us begin by applying the trigonometric identity[tex]cos^2(x) + sin^2(x) = 1,[/tex]which is true for any angle x. Solving for[tex]cos^2(x)[/tex], we get [tex]cos^2(x) = 1 - sin^2(x).[/tex]
Using this identity, we can rewrite the given equation as
[tex]1 - sin^2((1/8)^2) + 1 - sin^2(3n/8) + 1 - sin^2(5n/8) + 1 - sin^2(7n/8) = 2[/tex]
Simplifying, we get:
[tex]4 - (sin^2((1/8)^2) + sin^2(3n/8) + sin^2(5n/8) + sin^2(7n/8)) = 2[/tex]
Rearranging, we get:
[tex]sin^2((1/8)^2) + sin^2(3n/8) + sin^2(5n/8) + sin^2(7n/8) = 2[/tex]
Now, let us apply the trigonometric identity [tex]sin^2(x) + cos^2(x) = 1[/tex], which is true for any angle x. Solving for [tex]sin^2(x),[/tex] we get [tex]sin^2(x) = 1 - cos^2(x)[/tex].
2=2
Therefore, the equation is true
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Which of the following lists the sides of the triangle in order of length, from longest to shortest?
Answer: EF, DF, DE
Step-by-step explanation:
The smaller the opposite angle, the smaller the side, and vice versa.
∠EDF = 85°
∠DEF = 60° (Because the total degrees in a triangle must be 180°)
∠DFE = 35°
EF, DF, DE
Hope this helps!
According to the Funda equation of the given polynomial equatior f(x)=-3x^(2)+4x-1
The solutions to the given polynomial equation are x = 1/3 and x = 1.
According to the given polynomial equation f(x)=-3x^(2)+4x-1, we can find the values of x by using the quadratic formula, which is x = (-b ± √(b^(2)-4ac))/(2a).
In this equation, a = -3, b = 4, and c = -1.
Plugging these values into the quadratic formula, we get:
x = (-(4) ± √((4)^(2)-4(-3)(-1)))/(2(-3))
Simplifying this equation, we get:
x = (-4 ± √(16-12))/(-6)
x = (-4 ± √4)/(-6)
x = (-4 ± 2)/(-6)
Therefore, the two possible values of x are:
x = (-4 + 2)/(-6) = -2/(-6) = 1/3
x = (-4 - 2)/(-6) = -6/(-6) = 1
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Kayleigh walks 5/8 to school every day how far does she walk to school in 5 days
Answer:
Step-by-step explanation: First you do 5*5 and get 25. Then you do 25/8 and get 3 1/8.
How are the side lengths of the preimage and dilated image related?
Answer:
The dilated image has half the dimensions of the pre-image
So the pre-image is dilated by a scale factor of 1/2 (0.5)
Step-by-step explanation:
The side lengths of the dilated image is related to the preimage by a division of 2
How to determine the how the side lengths are relatedFrom the question, we have the following parameters that can be used in our computation:
The figure
Where we have
Pre-Image = PQRS
Image = P''Q'R'S'
From the figure, we can see that
The side lengths of P''Q'R'S' is half of the side lengths of PQRS
This means that
(x, y) = 1/2(x, y)
Hence, the transformation is (x, y) = 1/2(x, y)
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Use the properties of logarithms to expand the expression as a sum, difference, and/or constant multiple of logarithms. (Assume the variable is positive.)
The expression [tex]log(x^4)[/tex] can be expanded as a constant multiple of log(x).
What is the logarithms?
A logarithm is a mathematical function that measures the number of times a given value (called the base) must be multiplied by itself to produce a specified value.
We can use the following properties of logarithms to expand the expression:
log(a * b) = log(a) + log(b)log(a / b) = log(a) - log(b)[tex]log(a^n) = n * log(a)[/tex]The expression [tex]log(x^4[/tex]) can be expanded using the following property of logarithms:
[tex]log(a^n) = n * log(a)[/tex]
Using this property, we can write:
[tex]log(x^4) = 4 * log(x)[/tex]
Hence, the expression [tex]log(x^4)[/tex] can be expanded as a constant multiple of log(x).
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Help me please it would mean a lot
Answer:
3) The commercial costs $900 to produce and $110 each times it is aired.
Step-by-step explanation:
We can determine how expensive it is to produce a commercial by looking at the function C(n)'s output when n = 0 (when the commercial hasn't been aired yet).
C(0) = 110(0) + 900
C(0) = $900
So, the cost of producing a commercial is $900.
We can see that $110 is added to the cost each time n is incremented by 1. Therefore, it costs $110 each time the commercial is aired.
We can put these two statements together to deduce that answer option 3 is correct:
The commercial costs $900 to produce and $110 each times it is aired.
Answer:
Option 3
Step-by-step explanation:
900 is a constant number that never changes. However, the value of "110n" changes every time it is aired, because 110 is multiplied by a different number. This means that $110 represents the cost of airing it each time, because if it was hypothetically aired three times, you would multiply 110 by 3, proving that it is the cost to air it, and $900 is the production cost. It also makes no sense to produce the same commercial over and over again, so the cost that is multiplied has to be the amount of times that it is aired.
What is the order on a number line left to right of 1.25, -1.25, 2 2/5, -2.1, 1/3
Isha is a pet sitter.
She earns $5 for each cat.
She earns $12 for each dog.
Last week, Isha pet sat for 11 cats and 7 dogs.
How much money did Isha earn pet sitting last week?
Answer: $139.00
Step-by-step explanation: 5x11 = 55
12x7 = 84
55+84=139
What are the quotient and remainder when 3x^(4)-x^(2) is divided by x^(3)-x^(2)+2?
When [tex]3x^{4}-x^{2}[/tex] is divided by [tex]x^{3}-x^{2}+2[/tex], the quotient is 3x and the remainder is [tex]5x^2-2x[/tex].
To see why, we perform long division as follows:
[tex]3x[/tex]
[tex]x^3 - x^2 + 2 | 3x^4 + 0x^3 - x^2 + 0x + 0[/tex]
[tex]- 3x^4 + 3x^3 - 6x^2[/tex]
-----------------------
[tex]3x^3 - 7x^2[/tex]
[tex]- 3x^3 + 3x^2 - 6x[/tex]
-------------------
[tex]5x^2 - 2x[/tex]
The divisor is [tex]x^3 - x^2 + 2[/tex] and the dividend is [tex]3x^4 - x^2[/tex]. We start by dividing the highest degree term of the dividend by the highest degree term of the divisor, which gives 3x. We then multiply the divisor by this quotient and subtract the result from the dividend. We repeat this process with the resulting polynomial until the degree of the remainder is less than the degree of the divisor.
In this case, the remainder is [tex]5x^2-2x[/tex], which has a degree of 2 (less than the degree of the divisor). Therefore, we have found the quotient and remainder of the division.
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What is the solution of this inequality?
Answer: C
Step-by-step explanation:
Simplify $\frac{\sqrt{40\cdot9}}{\sqrt{49}}$.
The simplified expression of the given expression is [tex]\frac{6\sqrt{10}}{7}$.[/tex]
What is expression ?
An expression is a mathematical phrase that can contain numbers, variables, operators, and symbols. It can be a combination of terms, factors, and/or coefficients, and may involve addition, subtraction, multiplication, division, exponents, roots, and/or other mathematical operations. Expressions can be simplified, evaluated, or manipulated using algebraic rules and properties.
We can simplify the expression as follows:
[tex]\frac{\sqrt{40\cdot9}}{\sqrt{49}}=\frac{\sqrt{4\cdot10\cdot3\cdot3}}{\sqrt{7\cdot7}}\\ \\ \\=\frac{\sqrt{4}\cdot\sqrt{10}\cdot\sqrt{3}\cdot\sqrt{3}}{\sqrt{7}\cdot\sqrt{7}}\\ \\ \\=\frac{2\cdot3\sqrt{10}}{7}\\ \\ \\={\frac{6\sqrt{10}}{7}}.[/tex]
Therefore, the simplified expression of the given expression is [tex]\frac{6\sqrt{10}}{7}$.[/tex]
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write an expression and then solve. three less than one-fourth of the the product of eight thirds and nine
Step-by-step explanation:
3 - (1/4)×(8/3 × 9)
3 - (1/4)×(8×9/3)
3 - (1/4)×(8×3)
3 - (1/4)×24
3 - 24/4
3 - 6 = -3
work. 32. Write an equation for a function that has the shape of y=x^(2), but shifted right 2 units and down 1 unit.
The answer of equation for the function is y=(x-2)^(2)-1.
The equation for a function that has the shape of y=x^(2), but shifted right 2 units and down 1 unit is y=(x-2)^(2)-1.
To shift a function to the right, we subtract the amount of the shift from the x variable.
In this case, we want to shift the function 2 units to the right, so we subtract 2 from x: (x-2).
To shift a function down, we subtract the amount of the shift from the entire function.
In this case, we want to shift the function down 1 unit, so we subtract 1 from the entire function: (x-2)^(2)-1.
Therefore, the equation for the function is y=(x-2)^(2)-1.
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Find the unit rate.
Drove 275 miles in 5 hours
.02 miles per hour
275 miles per hour
50 miles per hour
55 miles per hour
Answer: 55 miles per hour.
To find the unit rate, divide the miles traveled by the time taken:
275 miles ÷ 5 hours = 55 miles per hour
Step-by-step explanation:
Find all values of 1 for which det(A) = 0, using the method of this section. A=|λ-6 0 0| . |0 λ 4| . |0 5 λ-1| λ 1=_____ λ 2=_____ λ 3=_____ Fill the upper blank with the greater value of lif it exists. Fill the blank with the symbol "x" if there is no corresponding 1.
A = |λ-6 0 0| . |0 λ 4| . |0 5 λ-1| λ 1= 4.79 λ 2= 4.79 λ3 = 4.79, as the highest value of lif it exists is 4.79. therefore X=4.79
To find the values of λ for which det(A) = 0, we need to solve the equation det(A) = 0. The matrix determinant of a 3x3 matrix A is given by:
[tex]det(A) = a11(a22a33 - a23a32) - a12(a21a33 - a23a31) + a13(a21a32 - a22a31)[/tex]
In this case, the matrix A is:
A = |λ-6 0 0|
|0 λ 4|
|0 5 λ-1|
So, the determinant of A is:
[tex]det(A) = (λ-6)(λ(λ-1) - 4*5) - 0(0(λ-1) - 4*0) + 0(0*5 - λ*0)[/tex]
Simplifying the equation, we get:
[tex]det(A) = (λ-6)(λ^2 - λ - 20)[/tex]
Setting det(A) = 0, we can find the values of λ:
[tex](λ-6)(λ^2 - λ - 20) = 0[/tex]
This equation has three solutions:
[tex]λ 1 = 6λ 2 = (-1 + √81)/2 ≈ 4.79λ 3 = (-1 - √81)/2 ≈ -5.79[/tex]
So, the answer is:
λ 1 = 6
λ 2 = 4.79
λ 3 = -5.79
The greater value of λ is λ 2 = 4.79.
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For the piecewise function, find the values h(- 8), h(-3), h(2), and h(5). -2x 10, for x< -7 2. x+3, forx22 h(x) = for 7sx<2 h(-8) = h(-3) = h(2) = h(5)
The numeric values of the piece-wise function are given as follows:
h(-8) = 26.h(-3) = 16.h(2) = 4.h(5) = 7.How to calculate the numeric value of a function or of an expression?To obtain the numeric value of a function or of an expression, we replace each instance of any variable or unknown on the function by the value at which we want to find the numeric value of the function or of the expression.
A piece-wise function is a function that has different definitions, based on the input interval of the function.
For x < 2, the function is defined as follows:
h(x) = -2x + 10.
Hence the numeric values on the interval are obtained as follows:
h(-8) = -2(-8) + 10 = 26.h(-3) = -2(-3) + 10 = 16.For x >= 2, the function is defined as follows:
h(x) = x + 2.
Hence the numeric values on the interval are obtained as follows:
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What is the solution of this inequality?
The whole number that is a solution for the inequality x ≥ 4 but is not a solution for the inequality x > 4 is 4.
Option B is the correct answer.
What is inequality?It shows a relationship between two numbers or two expressions.
There are commonly used four inequalities:
Less than = <
Greater than = >
Less than and equal = ≤
Greater than and equal = ≥
here,
We have,
x ≥ 4 and x > 4
Now,
x ≥ 4 means that x can be 4 and greater than 4.
x > 4 mean x is greater than 4.
So,
4 is a solution to x ≥ 4 but not a solution to x > 4.
Thus,
4 is the whole number.
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Solve the equation. 4(x - 2) = 2(2x + 6) 4x – [?] = [__] + [__] First we must use the distributive property to expand our equations. Hint: Calculate and enter the value of 4•2. ______________
The equation 4(x - 2) = 2(2x + 6) has no solution.
To solve the equation 4(x - 2) = 2(2x + 6), we must first use the distributive property to expand the equations. The distributive property states that a(b + c) = ab + ac.
Using the distributive property, we can expand the equation as follows:
4(x - 2) = 2(2x + 6)
4x - 8 = 4x + 12
Next, we must isolate the variable on one side of the equation. We can do this by subtracting 4x from both sides of the equation:
-8 = 12
This equation is not true, so there is no solution to the equation 4(x - 2) = 2(2x + 6).
In conclusion, the equation 4(x - 2) = 2(2x + 6) has no solution.
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College Algebra -3.1Modeling with Quadratics Angry Birss: * Cire cact aniwns. Hhe enty the fusctien to obraln yoar answerc. - Show all nocensary cakiadsina. - Wine your ancurers is complrte aeatrnces 1. Whor is the s-inerreept and nhat does a repreiert? 2. What is the ponatire eimerreps and whas doest throsetinaly tepereset? socirt?
The x-intercept is (-3,0) and the y-intercept is (0,9).
The x-intercept of a quadratic function is the point where the function intersects with the x-axis. This point represents the value of x for which the function is equal to 0. The x-intercept can be found by setting the function equal to 0 and solving for x.
The y-intercept of a quadratic function is the point where the function intersects with the y-axis. This point represents the value of y for which the function is equal to 0. The y-intercept can be found by setting x equal to 0 and solving for y.
1. The x-intercept of the function is (-3,0) and it represents the point where the function intersects with the x-axis.
2. The y-intercept of the function is (0,9) and it represents the point where the function intersects with the y-axis.
To find the x-intercept, set the function equal to 0 and solve for x:
0 = x^2 + 6x + 9
0 = (x+3)(x+3)
x = -3
To find the y-intercept, set x equal to 0 and solve for y:
y = 0^2 + 6(0) + 9
y = 9
Therefore, the x-intercept is (-3,0) and the y-intercept is (0,9).
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