(b) The area of a rectangular pool is 6532 m²
If the length of the pool is 92 m, what is its width?
Width of the pool:

Answers

Answer 1

The width of this rectangular pool is equal to 71 meters.

How to calculate the area of a rectangle?

Mathematically, the area of a rectangle can be calculated by using this formula:

A = LW

Where:

A represents the area of a rectangle.W represents the width or base of a rectangle.L represents the length or height of a rectangle.

Substituting the given points into the area of rectangle formula, we have the following;

6532 = 92W

Width, W = 6532/92

Width, W = 71 meters.

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Related Questions

What are the three major types of author's purpose?

Answers

Answer:

to inform, to persuade, and to entertain

Step-by-step explanation:

use double integration to calculate the area of the region r. you must sketch the region including all appropriate labels x 2y

Answers

9/16 square units is the calculated area of the region r using double integration.

The procedure where two variables, x and y, are involved and you must integrate with each of them is known as a double integral or double integration technique. The area of a given function beneath a curve is calculated using this integration method.

The area of a region, the volume below the surface, and the average value of a function of two variables over a rectangular region may all be determined using double integrals.

A two-variable function, f (x, y), integral over a region R is referred to as a double integral. Iterative integration may be used to get the double integral if R = [a, b] [c, d] (integrate first with respect to y, and then integrate with respect to x). The solution can be seen on the attached image below.

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Question correction:

See on the attached image.

5.) Which point satisfies the following system
of inequalities?

y=-x+2
-2x+y<-2
Á.(1,-1) B.(0,0) C. (2,2) D.(3,3)

Answers

The point satisfies the given system of inequalities is (1, -1)

What a system of inequalities?

A system of inequalities is a set of two or more inequalities in one or more variables.

Given is a system of inequalities y < -x+2 and -2x+y < -2,

We know that, the solution set of a system of inequalities is given by studying the graph of the system, The solution set the region covered by lines of the both inequalities.

Plotting the graphs, of the system of inequalities, we get, the set of solution is the area covered with purple shade,

In that area only, (1, -1) lies.

Therefore, the point (1, -1) is the solution of the given system of inequalities

Hence, the point satisfies the given system of inequalities is (1, -1)

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What is the height h for the base that is 5/4 units long?

Answers

The measure of the height of the triangle is 3 / 8 units.

What are trigonometric identities?

The branch of mathematics that sets up a relationship between the sides and the angles of the right-angle triangle is termed trigonometry.

The trigonometric functions, also known as circular, angle, or goniometric functions in mathematics, are real functions that link the angle of a right-angled triangle to the ratios of its two side lengths.

Given that the triangle has sides, 3 / 4 cm, 1 cm, and 5 / 4 cm.

The angle of the triangle is,

tanθ = ( 1 ) / ( 3 / 4 )

tanθ = 1.33

θ = 53.6°

The height will be,

h = ( 3 / 4 ) x sin53.4

h = 0.6

h = 4 / 5 cm

Therefore, the measure of the height of the triangle is 3 / 8 units.

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Explain why the graph of a linear equation in the form of y = c is the horizontal line, parallel to the x-axis passing through the point (0,c).

Answers

The linear equation in the form of y = c is the horizontal line, parallel to the x-axis passing through the point (0,c), because in this equation the x-intercept is 0.

What are linear equations?

A linear equation is an equation in which the highest power of the variable is always 1.

The line y = c, is always parallel to x-axis because here if we compare to general equation of a line y = mx+c, the m is zero that means the slope is zero and also the x-intercept is zero.

Therefore, the line y = c is the horizontal line, parallel to the x-axis.

Hence, the linear equation in the form of y = c is the horizontal line, parallel to the x-axis passing through the point (0,c), because in this equation the x-intercept is 0.

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In plane P, lines m and n intersect at point A. If line k is perpendicular to line m and line n at point A, then line k is 1) contained in plane p 2) parallel to plane p 3) perpendicular to plane p 4) skew to plane p​

Answers

Answer:

3)

Step-by-step explanation:

2 lines establish a plane (it is the same plane P as mentioned in the description).

a line being perpendicular (having a right angle = 90°) to 2 other lines means it is perpendicular to the plane these 2 lines are establishing.

as it is impossible for a line to be perpendicular to 2 other lines in the same plane, if these 2 other lines are intersecting. it would only be possible, if these 2 lines were parallel.

4. How many terms will be in the expansion of (2x + 3y)?
There will be 6+ 1 = 6 terms in the expansion.
There will be 6-1 = 5 terms in the expansion.
There will be 6-1 = 6 terms in the expansion.
O There will be 6+1=7 terms in the expansion.

Answers

The solution is, In the binomial expansion (2x + 3)^5 , there are 6 terms.

What is  binomial expression ?

The formula for expanding the exponential power of a binomial expression is provided by the binomial theorem, sometimes referred to as the binomial expansion. The following is the binomial expansion of (x + y)n using the binomial theorem:

(x+y)n = nC0 xny0 + nC1 xn-1y1 + nC2 xn-2 y2 + ... + nCn-1 x1yn-1 + nCn x0yn

here, we have,

According to the question, given that

Binomial expansion  (2x + 3)^5

Number of terms in a binomial expansion of (x + y)^n is

N = n + 1 words in total

In the binomial expansion (2x + 3)^5

n = 5

N = 5 + 1 = 6

Therefore, In Binomial expansion  (2x + 3)^5 there are 6 terms.

The algebraic expression (x + y)n can be expanded according to the binomial theorem, which represents it as a sum of terms using separate exponents of the variables x and y. Each word in a binomial expansion has a coefficient, which is a numerical value.

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What is an equation of the line that passes through the point (-7,-6)(−7,−6) and is parallel to the line x-y=5x−y=5?

Answers

Answer:

y = x + 1

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

given

x - y = 5 ( subtract x from both sides )

- y = - x + 5 ( multiply through by - 1 )

y = x - 5 ← in slope- intercept form

with slope m = 1

• Parallel lines have equal slopes , then

y = x + c ← is the partial equation

to find c substitute (- 7, - 6 ) into the partial equation

- 6 = - 7 + c ( add 7 to both sides )

1 = c

y = x + 1 ← equation of parallel line

find (-8-8\sqrt(3))^(1/4), express the roots in rectangular coordinates, exhibit them as the vertices of a certain square and point out which is the principal root g

Answers

The four roots form the vertices of a square in the complex plane. The side length of the square is √2. The vertices of the square complex number are: A = (-√2, -√2), B = (0, -2√2), C = (√2, -√2), D = (0, 0). The principal root is the one with the smallest argument, which is (-√2 - √2 i).

To find the fourth root of the complex number (-8-8√3), we can use the following steps:

We start by finding the modulus and argument of the number:

|(-8-8√3)| = 16

arg(-8-8√3) = arctan(-√3) = -π/3

Therefore, (-8-8√3) = 16(cos(-π/3) + i sin(-π/3)).

To find the fourth root, we take the square root twice. We can use De Moivre's theorem to simplify the calculation:

(-8-8√3)^(1/4) = (16(cos(-π/3) + i sin(-π/3)))^(1/4)

= 2(cos(-π/12) + i sin(-π/12))

= 2(cos(11π/12) + i sin(11π/12))

= 2(-√2/2 - √2/2 i)

We have expressed the roots in rectangular coordinates as (-√2, -√2), (0, -2√2), (√2, -√2), and (0, 0).

The four roots form the vertices of a square in the complex plane. The side length of the square is |(-√2) - (0)| = √2.

The vertices of the square are:

A = (-√2, -√2)

B = (0, -2√2)

C = (√2, -√2)

D = (0, 0)

The principal root is the one with the smallest argument, which is (-√2 - √2 i). This is the root corresponding to the first quadrant of the complex plane.

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Convert 39 gallons to liters using unit fractions

Answers

The conversion gives 39 Galloon = 147.63106 Liters

What is unit Conversion?

The same attribute is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometres, feet, or any other measurement unit instead of miles.

Given:

We have to convert 39 galloon to liter

As, 1 Galloon =  3.7854118 Liters

Now, 39 Galloon= 39 x 3.7854118 Liters

                            = 147.63106 Liters

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Function A and Function B are linear functions.
Function A
Function B
y = 2x - 4
X
-5
-4
2
y
-11
-8
10
Which statements are true? Select all that apply.
The slope of Function A is greater than the slope of Function B.
The slope of Function A is less than the slope of Function B.
The y-intercept of Function A is greater than the y-intercept of Function B.
The y-intercept of Function A is less than the y-intercept of Function B.

Answers

Answer:

              The true statements to be selected are the following:

"The slope of Function A is greater than the slope of Function B."

"The y-intercept of Function A is greater than the y-intercept of Function B."

Step-by-step explanation:

              Based on the points that were provided for Function A: (-5, -11), (-4, -8), and (2, 10), we can create a linear function to represent the function. The slope of the function is 3, and the y-intercept would be 4, so the linear function of Function A would be y = 3x + 4. And the function of Function B is, as given, y = 2x - 4.

              Now, we can compare the two functions and determine which statements are correct. Function A has a slope of 3 and a y-intercept of (0, 4), whilst Function B has a slope of 2 and a y-intercept of (0, -4). As both the slope and y-intercept of Function A is greater than the slope and y-intercept of Function B, the correct statements to select would be "The slope of Function A is greater than the slope of Function B." and "The y-intercept of Function A is greater than the y-intercept of Function B."

Have a great day! Feel free to let me know if you have any more questions :)

Show that equation (5.3) is true by considering an investment in the asset combined with a short position in a futures contract. Assume that all income from the asset is reinvested in the asset. Use an argument similar to that in footnotes 2 and 4 of this chapter and explain in detail what an arbitrageur would do if equation (5.3) did not hold.
5.3 equation:
F0= S0e(r-q)T
Footnote 2:
For another way of seeing that equation (5.1) is correct, consider the following strategy: buy one unit of the asset and enter into a short forward contract to sell it for F0 at time T. This costs S0 and is certain to lead to a cash inflow of F0 at time T. Therefore S0 must equal the present value of F0; that is, S0= F0erT, or equivalently F0= S0erT
Equation 5.1 F0= S0erT.
Footnote 4:
For another way of seeing that equation (5.2) is correct, consider the following strategy: buy one unit of the asset and enter into a short forward contract to sell it for F0 at time T. This costs S0 and is certain to lead to a cash inflow of F0 at time T and an income with a present value of I. The initial outflow is S0. The present value of the inflows is I+ F0e-rT. Hence, S0=I + F0e-rT, or equivalently F0= (S0 – I)erT
Equation 5.2 F0= (S0 – I)erT

Answers

The futures price F0 must be equal to the present value of the expected future spot price, which is [tex]S0e^{(r-q)} T[/tex]. Hence, equation (5.3) is true.

We can use a similar strategy to Footnote 2 to show that equation (5.3) is correct.

Consider an investor who wants to invest in an asset with spot price S0, which pays a continuous dividend yield of q, and simultaneously take a short position in a futures contract with maturity T, which has a futures price of F0. The investor buys one unit of the asset for S0 and sells a futures contract for F0.

At maturity T, the futures contract will be settled at the spot price of the asset, ST. If ST > F0, the investor makes a profit of ST - F0 on the asset, but incurs a loss of F0 - ST on the futures contract. If ST < F0, the investor incurs a loss of F0 - ST on the asset, but makes a profit of ST - F0 on the futures contract.

Now, suppose that equation (5.3) does not hold, i.e., [tex]F0 \neq S0e^{(r-q)} T[/tex]. If [tex]F0 > S0e^{(r-q)} T[/tex], then the investor can buy the asset for S0, sell a futures contract for F0, and invest the difference [tex](F0 - S0e^{(r-q)} T)[/tex] at the risk-free rate r. At maturity T, the investor will receive ST from the asset, F0 from the futures contract, and [tex](F0 - S0e^{(r-q)} T)e^r(T-t)[/tex] from the investment. The total cash inflow will be [tex]ST + F0 + (F0 - S0e^{(r-q)} T)e^r(T-t).[/tex] But this is greater than the initial outflow of S0, which means that the investor can make a riskless profit, violating the no-arbitrage principle.

Similarly, if[tex]F0 < S0e^{(r-q)} T[/tex], then the investor can short-sell the asset for S0, buy a futures contract for F0, and borrow the difference [tex](S0e^{(r-q)} T - F0)[/tex] at the risk-free rate r. At maturity T, the investor will receive ST from the short sale, F0 from the futures contract, and [tex](S0e^{(r-q)} T - F0)e^r(T-t)[/tex]from the borrowing. The total cash inflow will be [tex]ST + F0 + (S0e^{(r-q)} T - F0)e^r(T-t)[/tex]. But this is greater than the initial outflow of S0, which means that the investor can make a riskless profit, violating the no-arbitrage principle.

Therefore, to avoid arbitrage opportunities, The futures price F0 must be equal to the present value of the expected future spot price, which is [tex]S0e^{(r-q)} T[/tex]. Hence, equation (5.3) is true.

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Consider the matrix A = [ 3 -2 -4 -5 -2 3 ] and the vector x = [5 2 -4] When multiplying A by z on the right, the result Az is a linear combination of three vectors vi, v2, v3, where the entries of x play the role of the coefficients in front of those vectors, as follow (5)vi (2)02 + ( - 4)vs What are these vectors? v1 =v2 =v3 =

Answers

The entries of x, 5, 2, and -4, are the coefficients in front of the vectors v1, v2, and v3 respectively.

To find the vectors v1, v2, and v3, we need to perform the matrix-vector multiplication Az = A * x.

A = [3 -2 -4 -5 -2 3]

x = [5 2 -4]

Az = [3 -2 -4 -5 -2 3] * [5 2 -4] = [35 -8 -52 -34 -12 22]

So, the vectors v1, v2, and v3 can be represented as follows:

v1 = [35]

v2 = [-8]

v3 = [-52 -34 -12 22]

These vectors represent the components of the result Az in the same order as they appear in the multiplication. The values of x, 5, 2, and -4, are the coefficients in front of the vectors v1, v2, and v3 respectively.

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____ The given question is incomplete, the complete question s given below:

Consider the matrix A = [ 3 -2 -4 -5 -2 3 ] and the vector x = [5 2 -4] When multiplying A by z on the right, the result Az is a linear combination of three vectors v1, v2, v3, where the entries of x play the role of the coefficients in front of those vectors, as follow (5)v1 + (2)v2 + ( - 4)v3. What are these vectors v1, v2, v3.

PLEASE HELP

use the information given in the figure to find the length of TR . IF applicable , round your answer the nearest whole number

Answers

Step-by-step explanation:

first Pythagoras to get PT :

85² = 77² + PT²

7225 = 5929 + PT²

PT² = 1296

PT = 36

second Pythagoras to get ST :

39² = PT² + ST² = 36² + ST²

1521 = 1296 + ST²

ST² = 225

ST = 15

third Pythagoras to get TR :

97² = ST² + TR² = 15² + TR²

9409 = 225 + TR²

TR² = 9184

TR = 95.83318841... ≈ 96

NO LINKS!!! URGENT HELP PLEASE !!!
#1-3
Find the shaded area of each figure, and round your answer to one decimal place if necessary.

Answers

You posted a lot of questions. I'll do the first three to get you started.

==================================================

Problem 1

Answer: 55 square inches

Explanation:

Draw a vertical line to enclose the un-shaded region. Think of it like adding fencing to enclose a paddock or backyard.

What results are two rectangles. The larger rectangle has area = length*width = 8*10 = 80 square inches.

The smaller unshaded rectangle inside has area of 5*5 = 25 square inches.

The difference of those areas is:  80-25 = 55

You have the correct answer. Nice work.

==================================================

Problem 2

Answer:  486 square feet

Explanation:

Follow the same set of steps as done in the previous problem. Draw a vertical line to form a larger rectangle.

The larger rectangle has area of 18*31.5 = 567 square feet.

The smaller unshaded rectangle has area of 9*9 = 81 square feet.

Subtract those results to get the shaded region only: 567-81 = 486

==================================================

Problem 3

Answer: 5.6 square cm

Explanation:

This time we don't have to add any extra lines to enclose the figure.

A = larger area = 6*2.4 = 14.4

B = smaller unshaded area = 2*4.4 = 8.8

C = A-B = 14.4-8.8 = 5.6 square cm

You have the correct answer. Nice work.

Answer:

1)  55 in²

2)  486 ft²

3)  5.6 cm²

Step-by-step explanation:

To calculate the area of each given figure, subtract the area of the cut-out rectangle (marked in blue on the attached diagram) from the area of the larger rectangle.

[tex]\boxed{\begin{minipage}{5cm}\underline{Area of a rectangle}\\\\$A=w\cdot l$\\\\where:\\ \phantom{ww} $\bullet$ \quad $w$ is the width.\\ \phantom{ww} $\bullet$ \quad $l$ is the length.\\\end{minipage}}[/tex]

Question 1

[tex]\begin{aligned}\textsf{Total Area}&=\textsf{Larger rectangle}-\textsf{Cut-out rectangle}\\&=8 \cdot 10- 5\cdot 5\\&=80-25\\&=55\; \sf in^2\end{aligned}[/tex]

Question 2

[tex]\begin{aligned}\textsf{Total Area}&=\textsf{Larger rectangle}-\textsf{Cut-out rectangle}\\&= 31.5\cdot 18- 9\cdot 9\\&=567-81\\&=486\; \sf ft^2\end{aligned}[/tex]

Question 3

[tex]\begin{aligned}\textsf{Total Area}&=\textsf{Larger rectangle}-\textsf{Cut-out rectangle}\\&= 6\cdot 2.4- 4.4\cdot2 \\&=14.4-8.8\\&=5.6\; \sf cm^2\end{aligned}[/tex]

While preparing his budget sheet, John Drake noticed that his annual
expenses were $17,700 while his monthly living expenses were $300 more than
his monthly fixed expenses. If John's total monthly expenses were $3,250, find his
monthly fixed expenses and his monthly living expenses.

Answers

Answer:

Step-by-step explanation:

Fill in the table using this function rule.
y=3x-1
X Y
1
4
5
7

Answers

The completed table using this function rule is,

Input    (x)    1    4    5   7

Output (y)    2   11   14   26

What is the function rule?

Function rule is the rule of writing the relationship between the two variables, one is dependent and another is independent.

The table given in the problem is;

Input    (x)    1    4    5   7

Output (y)

Thus we need to write such a function, which gives the value of (y).

y=3x-1

Complete the table using the above function rule;

At (x) equal to 1,

y=3x-1

y=3(1)-1

y = 2

At (x) equal to 4,

y=3x-1

y=3(4)-1

y = 11

At (x) equal to 5,

y=3x-1

y=3(5)-1

y = 14

At (x) equal to 7,

y=3x-1

y=3(7)-1

y = 26

Hence,  the completed table is,

Input    (x)    1    4    5   7

Output (y)    2   11   14   26

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help me out here guys

Answers

x represents the increase in the length and width of the garden from the expression.

What is Area of Rectangle?

The area of Rectangle is length times of width.

Ishan garden is in the shape of a rectangle.

The length of the garden is 15 feet and width is 5 feet.

He plans to increase the length and width of his garden.

The total amount of fencing is given as expression

(x+15)+(x+5)+(x+15)+(x+5)

We have to check what the x represents in the expression.

The x represents the increase in the length and width of the garden.

Hence,  x represents the increase in the length and width of the garden.

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Can someone please help me with the math problem, ASAP? The math problem is in the picture below, THANK YOU!
Note: Please show how you go with your answer for decreasing on or increasing on, one of the other. If you know what I mean.

Answers

Answer:

Increasing: (-infinity, 1)  and Decreasing: (1, -infinity)

Step-by-step explanation:

Increasing means as you go from left to right where the x values are increasing, the y values are also increasing.

Decreasing means as you go from left to right where the x values are increasing, the y values are decreasing.

game show on a game show, you are given five digits to arrange in the proper order to form the price of a car. if you are correct, you win the car. what is the probability of winning, given the following conditions? (a) you guess the position of each digit. (b) you know the fir

Answers

Probability of winning, you guess the position of each digit is 0.00833 and Probability of winning when you know the first correct piece is 0.04167.

There are 5 pieces to form a car.

Total number of arrangement of these 5 pieces is 5! = 5×4×3×2×1 = 120 ways

Of these 120 arrangements only 1 arrangement will form a proper car

(a) Probability that each position's guess is correct is = 1/ 120

Thus, the probability of getting all the guesses correct is 0.00833 or 0.833%.

(b) It is given that we know the first correct piece.

That is we need to guess the other 4 from the 4 remaining pieces.

Total number of arrangement of these 5 pieces is 4!

= 4×3×2×1 = 24 ways

Of these 24 arrangements only 1 arrangement will form a correct arrangement with the known first piece.

Probability that each position's guess is correct = 1/24

Thus, the probability of getting all the guesses correct when we know the first correct piece is 0.04167 or 4.17%.

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Let S be a set. Consider the algebraic structure (℘(S),∪,∩). Taking union to be the additive operation and intersection to be the multiplicative operation, investigate whether or not this algebraic structure is a commutative ring. That is, either prove or provide a counterexample for each property of a commutative ring.
Bonus: Does this structure have zero divisors?

Answers

The algebraic structure (℘(S),∪,∩) is a commutative ring.

To prove that the algebraic structure (℘(S),∪,∩) is a commutative ring, we need to show that it satisfies the following properties:

Addition is commutative: A ∪ B = B ∪ A for any A, B ∈ ℘(S)

Addition is associative: (A ∪ B) ∪ C = A ∪ (B ∪ C) for any A, B, C ∈ ℘(S)

There exists an additive identity: there exists a set 0 ∈ ℘(S) such that A ∪ 0 = A for any A ∈ ℘(S)

There exists an additive inverse: for any A ∈ ℘(S), there exists a set -A ∈ ℘(S) such that A ∪ -A = 0

Multiplication is commutative: A ∩ B = B ∩ A for any A, B ∈ ℘(S)

Multiplication is associative: (A ∩ B) ∩ C = A ∩ (B ∩ C) for any A, B, C ∈ ℘(S)

There exists a multiplicative identity: there exists a set 1 ∈ ℘(S) such that A ∩ 1 = A for any A ∈ ℘(S)

Distribution property: A ∩ (B ∪ C) = (A ∩ B) ∪ (A ∩ C) for any A, B, C ∈ ℘(S)

Addition is commutative: This property is true, as the union operation is commutative. Therefore, A ∪ B = B ∪ A for any A, B ∈ ℘(S).

Addition is associative: This property is also true, as the union operation is associative. Therefore, (A ∪ B) ∪ C = A ∪ (B ∪ C) for any A, B, C ∈ ℘(S).

There exists an additive identity: The empty set ∅ is the additive identity, as A ∪ ∅ = A for any A ∈ ℘(S).

There exists an additive inverse: The additive inverse of any set A is its complement -A, as A ∪ -A = ∅ for any A ∈ ℘(S).

Multiplication is commutative: This property is true, as the intersection operation is commutative. Therefore, A ∩ B = B ∩ A for any A, B ∈ ℘(S).

Multiplication is associative: This property is also true, as the intersection operation is associative. Therefore, (A ∩ B) ∩ C = A ∩ (B ∩ C) for any A, B, C ∈ ℘(S).

There exists a multiplicative identity: The set S is the multiplicative identity, as A ∩ S = A for any A ∈ ℘(S).

Distribution property: This property is also true, as the intersection operation distributes over the union operation. Therefore, A ∩ (B ∪ C) = (A ∩ B) ∪ (A ∩ C) for any A, B, C ∈ ℘(S).

Therefore, we have shown that the algebraic structure (℘(S),∪,∩) is a commutative ring.

Bonus: This structure does not have zero divisors. A zero divisor is an element a of a ring that is not zero and that has a product with some nonzero element b that is equal to zero. However, in

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·can someone please help

Answers

Answer:

2mn

Step-by-step explanation:

To solve the expression 14m^2n^2/7mn, we need to simplify the fraction.

First, we can simplify the numerator by combining the 14 and m^2:

14m^2 * n^2 / 7mn = (14m^2) * (n^2) / (7mn) = 14mn * mn / 7mn = 14mn / 7

Next, we can simplify the denominator by  7

14mn / 7  = 14 / 7 = 2mn

Write the system first as a vector equation and then as a matrix equation. 3x^1 - x^2 = 4 10x^1 + 8x^2 = 2 6x^1 - x^2 = 1

Answers

The vector equation of system of equations is:

[tex]x_1\begin{bmatrix}a_1\\.\\.\\a_n\end{bmatrix}+x_n\begin{bmatrix}a_{m1}\\.\\.\\a_{mn}\end{bmatrix}=\begin{bmatrix}b_1\\.\\.\\b_n\end{bmatrix}[/tex]

And the matrix equation is,

[tex]\begin{bmatrix} 3 & -1\\10 & 8\\6 & -1\end{bmatrix}\begin{bmatrix}x_1\\x_2\end{bmatrix}=\begin{bmatrix}4\\2\\1\end{bmatrix}[/tex]

The system of eqyuations is:

3x₁- x₂ = 4

10x₁ + 8x₂ = 2

6x₁ - x₂ = 1

Consider the system of equations :

a₁x₁ + . . . + [tex]a_m x_m[/tex]= b₁

.

.

[tex]a_n[/tex]x₁ + . . . + [tex]a_{nm} x_{nm}[/tex] = [tex]b_n[/tex]

We know that the vector form of above system of equations is:

[tex]x_1\begin{bmatrix}a_1\\.\\.\\a_n\end{bmatrix}+x_n\begin{bmatrix}a_{m1}\\.\\.\\a_{mn}\end{bmatrix}=\begin{bmatrix}b_1\\.\\.\\b_n\end{bmatrix}[/tex]

So, required vector equation would be,

[tex]x_1\begin{bmatrix}3\\10\\6\end{bmatrix}+x_2\begin{bmatrix}-1\\8\\-1\end{bmatrix}=\begin{bmatrix}4\\2\\1\end{bmatrix}[/tex]

and the required matrix equation would be,

[tex]\begin{bmatrix} 3 & -1\\10 & 8\\6 & -1\end{bmatrix}\begin{bmatrix}x_1\\x_2\end{bmatrix}=\begin{bmatrix}4\\2\\1\end{bmatrix}[/tex]

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Use the given points to write a system of two linear equations with the two unknowns being the slope and y-intercept of the line. Solve the system to identify those parameters and write the equation for the line passing through the two points in slope-intercept form.

(2, 5) and (6, 2)



(-1, 3) and (0, -2)



(-2, -4) and (2, 1)

Answers

The equations of the lines passing through the specified points in slope-intercept form are;

The equation of the line passing through the point (2, 5) and (6, 2) is; y = (-3/4)·x + 6.5The equation of the line passing through the points (-1, 3) and (0, -2) in slope-intercept form is; y = -5·x - 2The line passing through the points (-2. -4) and (2, 1) is; y = 1.25·x - 1.5

What is the equation of a line in slope-intercept form?

The slope-intercept form of the equation of a line is; y = m·x + c

Where;

m = The slope of the line

c = The y-intercept

The points are; (2, 5), and (6, 2)  

The slope and the y-intercept of the line are found as follows;

Let m represent the slope and let c represent the y-intercept, we get the following system of equations;

5 = 2·m + c...(1)

2 = 6·m + c...(2)

Therefore;

The difference between the two equations are;

5 - 2 = 2·m - 6·m + (c - c)

3 = -4·m

m = -3/4

5 = 2·m + c

Therefore;

5 = 2 × (-3/4) + c

c = 5 + 2 × (3/4) = 6.5

The equation is therefore; y = -(3/4)·x + 6.5

The points are; (-1, 3) amd (0, -2)

The equation are;

3 = -1·m + c...(1)

-2 = 0×m + c...(2)

Therefore;

c = -2

3 = -1·m + c

3 = -1·m - 2

m = (3 + 2)/(-1) = -5

The equation is therefore;

y = -5·x - 2

The points are; (-2, -4) and (2, 1)

The equation are;

-4 = -2·m + c...(1)

1 = 2·m + c...(2)

Subtracting equation (2) from equation (1), we get;

-4 - 1 = -2·m - 2·m = -4·m

-5 = -4·m

m = -5/(-4) = 1.25

m = 1.25

-4 = -2·m + c

Therefore;

-4 = -2 × 1.25 + c

-4 = -2.5 + c

c = -4 + 2.5 = -1.5

c = -1.5

The equation is therefore; y = 1.25·x - 1.5

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A company is purchasing new computers for its new office. The expression below represents the total cost of the computers, including an
Installation charge for all the computers.
The constant of the expression represents the
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O
$115 + $100
Reset
Et
O
, and the coefficient of x represents the

Answers

The constant of the expression represents the  installation charge, and the coefficient of x represents the number of computer.

What is an expression?

Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.

Given that, an equation that the total cost of the computers, including an installation charge for all the computers:

y = $115x+$100

y is the total cost.

Here the constant of the expression $100 represents the installation charge and the coefficient of x represents the number of computer,

For 1 computer, the total cost be:

y = $215

For 2 computers the total cost be:

y = $330

Hence, the constant of the expression represents the  installation charge, and the coefficient of x represents the number of computer.

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Let f : A → B be a function. Then, which of the following statements is/are equivalent to saying that f is onto
(a) 3x EA, Vy E B f(x) y
(b)y B, Vxe A f(x) y
(c) Vy e B, 3x A f(x) = y
(d) Væ E A, 3y B f(x) = y
(e) Vy e B, 3x E A, 3w E B f(x) = wɅy = w
Select all possible options that apply.

Answers

Let f : A → B be a function and the equivalent of stating that f is onto is statements (a), (c), and (e) and they are, (a) 3x EA, Vy E B f(x) y, (c) Vy e B, 3x A f(x) = y, and (e)  Vy e B, 3x E A, 3w E B f(x) = wɅy = w.

(a) 3x EA, Vy E B f(x) y denotes that at least one element x in A must exist for f(x) to equal y for every element function y in B. The meaning of onto is as follows.

(c) According to the formula Vy e B, 3x A f(x) = y, there must be at least one element x in A such that f(x) = y for each element y in B. Simply put, this is the same as assertion (a).

(e) Vy e B, 3x E A, 3w E B f(x) = wy = w indicates that at least one element x in A exists for every element y in B such that f(x) = y. The further requirement that g (x)

It is not equivalent to claim that f is onto based on statements (b) and (d).

(b) y B, Vxe A f(x) y denotes that there is at least one element in A such that f(x) = y for every element y in B. This is different from stating that f is onto because it does not imply that every element in B must actually be mapped to by f.

(d) According to the formula Vae E A, 3y B f(x) = y, there must be at least one element y in B such that f(x) = y for every element x in A. According to this definition, a function is total if it is specified for each element in domain A. The fact that f is assigned to some elements in B does not imply that f is necessarily onto those elements.

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.
The perimeter of a triangle is 104 units. The combined length of two of the sides of the triangle is 64 units.



What is the length of the third side of the triangle in units?

Answers

The equation that represents the third side of the triangle is x + 64 = 104 and its solution is 40 units.

What is the triangle?

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.

The perimeter of the triangle is determined by adding together all of its sides.

The perimeter of a triangle is 104 units. The combined length of two of the sides of the triangle is 64 units.

Let the third side be 'x'. Then the equation is given as,

x + 64 = 104

x = 104 - 64

x = 40 units

The equation that represents the third side of the triangle is x + 64 = 104 and its solution is 40 units.

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A random sample of 10 subjects have weights with a standard deviation of 14.0480 kg. What is the variance of their​ weights? Be sure to include the appropriate units with the result. The variance of the sample data is?

Answers

The variance of the sample data is equal to 197.3463 kg^2.

How to calculate the standard deviation of a data sample?

In Statistics, the standard deviation of a data sample is the square root of the variance and as such, this given by the following mathematical expression:

Standard deviation, δ = √Variance

By making variance the subject of formula, we have the following:

Variance = δ²

By taking the square of standard deviation, the variance would be calculated as follows:

Variance = δ²

Variance = 14.0480²

Variance = 197.3463 kg^2.

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Need help and just bored and how do you view the answers on what people say kinda new to this I'll give you 100 points

Answers

Answer:

total visitors = 247+79+36 = 362

probability of next person buying one or more costume = 115/362

hope it helps

A set of stairs is being made from concrete. A picture of the stairs is shown below.
2 feet
5 feet
$1 foot
8 feet
5 feet
What is the volume, in cubic feet, of the set of stairs?

Answers

The volume of the set of stairs is 65 cubic feet.

What is volume ?

In mathematics, the volume of an object is the amount of three-dimensional space that it occupies. It is a measure of the total amount of space that a solid object or a container can hold.

The volume of an object is usually measured in cubic units such as cubic meters ([tex]m^3[/tex]), cubic centimeters ([tex]cm^3[/tex]), or cubic feet (ft³), depending on the units of measurement used for its dimensions. The formula for calculating the volume of an object varies depending on its shape.

For simple shapes like cubes, rectangular prisms, and cylinders, the formulas for calculating their volumes are:

Volume of a cube = length x width x height

Volume of a rectangular prism = length x width x height

Volume of a cylinder = π x radius² x height

Where π (pi) is a mathematical constant approximately equal to 3.14, and the dimensions are all measured in the same units.

For irregular shapes, the volume can be determined using mathematical equations, computer modeling, or physical measurements. In real-world applications, volume is used in a variety of fields such as engineering, architecture, physics, and chemistry to describe the size, capacity, or amount of a substance or material.

According to given information :

To calculate the volume of the set of stairs, we need to find the volume of each rectangular block that makes up the stairs and then add them up. Let's first find the dimensions of each rectangular block:

The first block has dimensions 2 feet by 5 feet by 1 foot.

The second block has dimensions 8 feet by 5 feet by 1 foot.

To find the volume of each block, we multiply its length by its width by its height. So, the volume of the first block is:

Volume of first block = length x width x height

= 5 feet x 5 feet x 1 foot

= 25 cubic feet

The volume of the second block is:

Volume of second block = length x width x height

= 8 feet x 5 feet x 1 foot

= 40 cubic feet

Therefore, the total volume of the set of stairs is:

Total volume = volume of first block + volume of second block

= 25 cubic feet + 40 cubic feet

= 65 cubic feet

Therefore, the volume of the set of stairs is 65 cubic feet.

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Answer:

Step-by-step explanation:

Answer:

The volume of the set of stairs is 65 cubic feet.

What is volume ?

In mathematics, the volume of an object is the amount of three-dimensional space that it occupies. It is a measure of the total amount of space that a solid object or a container can hold.

The volume of an object is usually measured in cubic units such as cubic meters (), cubic centimeters (), or cubic feet (ft³), depending on the units of measurement used for its dimensions. The formula for calculating the volume of an object varies depending on its shape.

For simple shapes like cubes, rectangular prisms, and cylinders, the formulas for calculating their volumes are:

Volume of a cube = length x width x height

Volume of a rectangular prism = length x width x height

Volume of a cylinder = π x radius² x height

Where π (pi) is a mathematical constant approximately equal to 3.14, and the dimensions are all measured in the same units.

For irregular shapes, the volume can be determined using mathematical equations, computer modeling, or physical measurements. In real-world applications, volume is used in a variety of fields such as engineering, architecture, physics, and chemistry to describe the size, capacity, or amount of a substance or material.

According to given information :

To calculate the volume of the set of stairs, we need to find the volume of each rectangular block that makes up the stairs and then add them up. Let's first find the dimensions of each rectangular block:

The first block has dimensions 2 feet by 5 feet by 1 foot.

To find the volume of each block, we multiply its length by its width by its height. So, the volume of the first block is:

Volume of first block = length x width x height

= 5 feet x 5 feet x 1 foot

= 25 cubic feet

The volume of the second block is:

Volume of second block = length x width x height

= 8 feet x 5 feet x 1 foot

= 40 cubic feet

Therefore, the total volume of the set of stairs is:

Total volume = volume of first block + volume of second block

= 25 cubic feet + 40 cubic feet

= 65 cubic feet

Therefore, the volume of the set of stairs is 65 cubic feet.

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