three-quarter the product of two numbers x and y, what is the algebriac expression?​

Answer:

6. 12cm

7. 11.2 cm

8. 92 degrees

9. 53 degrees

10. 37.5 cm

11. $ 693.12

Step-by-step explanation:

For questions 6-9 the triangle is congurent which means both their angles will be equal.

For the sides you can see that the second triangle is 1.5 times smaller than the first one as taking one of the sides 21/14= 1.5

So for Q. 6 we can multiply side PQ by 1.5.

For Q.7 divide CA by 1.5.

For Q. 10 we can do cross multiplication:

5/4 = x/30

= 150= 4x

= 37.5=x

For Q 11 we can see the size of the paper is 1.9 times bigger than the original one (38/20)

So the shorter side is 30.4 cm.

Then we have to find the area of the paper to multiply the two dimensions and we get 1155.2 square inches.

Then to figure out the money we multiply again and we get $693.12.

DenClue is founded on a solid mathematical model for finding density attractors in the dataset under analysis.

DenClue (Density-based Clustering) is a clustering algorithm that aims to identify dense regions in a dataset, known as density attractors. The algorithm is based on a solid mathematical model that enables the detection of these density attractors.

The mathematical model used in DenClue is rooted in the concept of density estimation. It employs a kernel density estimation technique, where each data point contributes to the estimation of the underlying density function. The density function describes the distribution of data points in the dataset.

By analyzing the density function, DenClue identifies regions with high density as density attractors. These attractors represent clusters or groups of data points that are tightly packed together, indicating significant patterns or structures within the dataset.

The mathematical model utilized in DenClue ensures that the algorithm is based on rigorous mathematical principles and statistical analysis. This foundation allows for accurate and reliable identification of density attractors, leading to effective clustering of the dataset.

Overall, the solid mathematical model underlying DenClue provides a robust framework for density-based clustering, facilitating the exploration and understanding of complex datasets by revealing meaningful patterns and structures through the identification of density attractors.

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Answer:

Step-by-step explanation:

x + y + n = 576

When something is 25% larger than something else, the effect is the same as multiplying by 1.25. Let's try it with an example

20 + (25/100)* 20 = 20 + 500/100 = 20 + 5 = 25. Now if you multiply 20 * 1.25 you get 25 which is just what you should get.

n = 1.25(x + y)                    Divide by 1.25

n / 1.25 = x + y                   Substitute n / 1.25 for x + y in the above equation    

n/1.25 + n = 576                Multiply everything by 1.25  

n + 1.25n = 576*1.25         Combine the left to get 2.25

2.25 n = 576 * 1.25           Divide by 2.25

n = 576*1.25 / 2.25    

n = 320

Answer:

-5 5/8

Step-by-step explanation:

A negative minus a positive is essentially a negative plus a negative! The two values will add on top of each other to create a larger negative number.

I'd recommend turning the mixed numbers into improper fractions: 25/8 and 5/2. Then, make sure their denominators are equal by multiplying 5/2 by a "big one" or 4/4. This should get you 20/8.

Now, solve for -25/8 - 20/8 to get -45/8. Turn that number into a mixed number, and you have your answer!

Answer:

14+9 14×9that is the answer

The addition of the polynomial \(x^{3}+3xy-2xy^{2} +y^{3}\) with \(2x^{3}-5x^{2} y-3xy^{2}-2y^{3}\) is  \(3x^{3}+3xy-5x^{2} y-5xy^{2}-y^{3}\).

What is a polynomial?

⇒ A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.

⇒ In the addition of polynomials, the like terms are added while in subtraction, the like terms are subtracted.

Calculation;

We have been given two polynomial which we have to add   \(x^{3}+3xy-2xy^{2} +y^{3}\) and \(2x^{3}-5x^{2} y-3xy^{2}-2y^{3}\)

The sign after addition or subtraction will always be of the variable having more value.

\((x^{3}+3xy-2xy^{2} +y^{3} )+(2x^{3}-5x^{2} y-3xy^{2}-2y^{3})\)

On adding like terms with each other

⇒ \((x^{3} +2x^{3})+ 3xy-5x^{2} y-(2xy^{2}+3xy^{2})+(y^{3}-2x^{3})\)

⇒ \(3x^{3}+3xy-5x^{2} y-5xy^{2}-y^{3}\)

Hence the addition of the polynomial\(x^{3}+3xy-2xy^{2} +y^{3}\) and \(2x^{3}-5x^{2} y-3xy^{2}-2y^{3}\) is \(3x^{3}+3xy-5x^{2} y-5xy^{2}-y^{3}\).

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We have that, the first quartile of the given sample of twenty numbers is 59.

To find the first quartile of the given sample of twenty numbers

52, 54, 58, 59, 59, 60, 60, 63, 65, 66, 67, 68, 69, 73, 74, 77, 78, 79, 79, 98

use the following formula: Formula to calculate the first quartile:

\($$\mathrm{Q_1} = \mathrm{\frac{n+1}{4}}$$\)

So, plugging the values into the formula,

\($$\mathrm{Q_1} = \frac{20+1}{4}$$$$\mathrm{Q_1} = \frac{21}{4}$$$$\mathrm{Q_1} = $5.25 $\)

Then round 5.25 to the nearest whole number. To do this, compare 0.25 to 0.5, if it is greater than or equal to 0.5, then round up. If it is less than 0.5, round down. Since 0.25 is less than 0.5, round 5.25 to the nearest whole number. Therefore, the first quartile of the given sample of twenty numbers is 59.

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Answer:

They are 12, 13, 14 and 15.

Step-by-step explanation:

If the least integer is x, then:

x + x + 1 + x + 2 + x + 3 = 54

4x + 6 = 54

4x = 48

x = 12.

Answer:

you can solve this problem with the help of this example :

A rectangular pool 20 meters wide and 60 meters long is surrounded by a walkway of uniform width. If the total area of the walkway is 516 square meters, how wide, in meters, is the walkway?

Sol:

A rectangular pool has length l=60m & breadth b=20m.

It has a surrounding walkway of area =516m

2

.

Area (pool) =60×20=1200m

2

Let us take the width of the walkway =

2

X

.

∴ The length as well as the breadth of the area (pool+walkway) will be increased by X

So the length =l of the area (pool+walkway) =(60+X)m and the breadth =b=(20+X)m

∴ Area (pool+walkway) =l×b=[(60+X)×(20+X)]m

2

.

∴ Area (walkway) = Area (pool+walkway) - Area (pool)

=(60+X)×(20+X)−1200=516m

2

....(given)

⇒X

2

+80X−516=0

⇒X=−86 or X=6.

We reject the negative value as X is a length.

So X=6m.

Ans- The width of the walkway =

2

X

=3m.

Answer:

Multiplication

Step-by-step explanation:

I believe 2x2 would have a sum of 4.

Answer:

Addition

Step-by-step explanation:

Sum means add

difference mean subtract

of mean multiply

By mean divide

have a great day!

The answers to each part is mentioned above.

Given is that Aiko works in the fish department of a pet store. She must drain, clean, and refill two reef tanks. The first tank hold 175 gallons of water and drains at a rate of 25 gallons per hour. The second tank holds 200 gallons of water and drains at a rate of 30 gallons per hour.

Equation for tank {1} -

y = 175 - 25x

Equation for tank {2} -

y = 200 - 30x

For the solution we can write -

175 - 25x = 200 - 30x

- 25x + 30x = 200 - 175

5x = 25

x = 5

and

y = 200 - 150

y = 50

For the same amount of water we can write -

175 - 25x = 200 - 30x

- 25x + 30x = 200 - 175

5x = 25

x = 5 hours

In tank (1), there is : 175 - 25 x 5 = 50 gallons

In tank (2), there is : 200 - 30 x 5 = 50 gallons

Therefore, the answers to each part is mentioned above.

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Answer:

y=-x-15

Step-by-step explanation:

used mathaway calculator!! probably would be useful if youre doing more question like shown. :) mark brainlest pls

To find the slope intercept form, you need to isolate y.

We need to get x on the other side of the equation.

You can do this by subtracting x from each side of the equation.

x+y-x = y

-15-x = -15-x

You get...

y = -15-x

Now you need to get the x before the -15.

So just switch them.

y = -x-15

And your done.

Answer:

That's the answer

please mark brainiest

Answer:

a+b=c

Step-by-step explanation:

add a and b and thats c

Answer:

x = 16

Step-by-step explanation:

Since the triangles are congruent then corresponding angles are congruent, that is

∠ B = ∠ E , substitute values

x + 15 = 6x - 65 ( subtract 6x from both sides )

- 5x + 15 = - 65 ( subtract 15 from both sides )

- 5x = - 80 ( divide both sides by - 5 )

x = 16

Given the inequality:

Solve for g, subtract 8 from both sides

so, the answer will be:

The postfix expression of "7+5-3*2(6*7)/4" is "7 5 + 3 2 * 6 7 * 2 * - 4 /". Evaluating the postfix expression gives the result of the expression. The prefix expression for the given infix expression is "/ - + 7 5 * 3 * 2 ( * 6 7 ) 4".

To convert the infix expression "7+5-3*2(6*7)/4" into postfix expression, we follow the rules of operator precedence and associativity. The postfix expression is obtained by placing operators after their operands.

The postfix expression for the given infix expression is:

"7 5 + 3 2 * 6 7 * 2 * - 4 /"

To evaluate the postfix expression, we use a stack data structure. We scan the postfix expression from left to right and perform the corresponding operations.

Starting with an empty stack, we encounter the operands "7" and "5". We push them onto the stack. Then we encounter the operator "+", so we pop the last two operands from the stack (5 and 7), perform the addition operation (7 + 5 = 12), and push the result back onto the stack.

We continue this process for the remaining operators and operands in the postfix expression. Finally, after evaluating the entire expression, the result left on the stack is the final answer.

To convert the infix expression into prefix expression, we follow similar rules but scan the expression from right to left. The prefix expression is obtained by placing operators before their operands.

The prefix expression for the given infix expression is:

"/ - + 7 5 * 3 * 2 ( * 6 7 ) 4"

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Answer:

Step-by-step explanation:

Like your other question, let's break it down systematically

6x + 9y - 9(6x - 3y + 8z)

Use the distributive property

6x + 9y - 9(6x - 3y + 8z)

6x + 9y - 54x - 27y + 72z

Match like terms

6x - 54x = -48x

9y - 27y = -18y

72z - 48x - 18y

Answer:

15x^2 - x + 2

Step-by-step explanation:

The percentage of the data values in the box-and-whiskers plot, that are greater than or equal to 92, which is the 75th percentile, based on the five number summary, are 25 percent of the data.

The five number summary of a box-and-whiskers plot are value of the minimum, the first quartile, the median, the third quartile and the maximum value of the set of data.

Please find attached the possible box-and-whiskers plot in the question, obtained from a similar question on the internet

The five number summary from the box-and-whiskers plot are;

Minimum value = 82

The first quartile or the 25th percentile = 87

The median, second quartile or the 50th percentile = 90

The third quartile or the 75th percentile = 92

The value 92 on the data represents the 75th percentile, therefore, the percentage of the data that are greater than or equal to 92 are; 100 - 75 = 25 percent

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Answer:

slope- -1/3

a point: (0, \(\frac{31}{3}\))

Step-by-step explanation:

y-9= -1/3(x-4)

y-9= -1/3x+4/3

y= -1/3x+31/3

to find a point:

y= -1/3(0)+31/3

y=31/3

(this happens when x= 0, so the point is (0,31/3)

Answer:

m=-1/3

Point: (4,9)

Step-by-step explanation:

i just took the question and got it right on ed2020

Answer:

Step-by-step explanation:

1. (x-3)(x+8)

x^2+5-24

2. (-3x+2)(4x+5)

-12x^2-7x+10

3. (x+4)(x-4)

x^2-16

4. (x+5)^2

x^2+10x+25

5. (2x-7)^2

4x^2-28x+49

6. (x-7)(x+7)

x^2-49

7. (5x-1)(2x+4x-3)

30x^2-13x+3

8. (3x^3+7x^2+7x+10

Answer:

A circle centred at (-1,3) and radius 3.

Step-by-step explanation:

Answer: E only

Step-by-step explanation:

The Polynesian Triangle is a vast region of the Pacific Ocean that encompasses Hawaii, New Zealand, and Easter Island. The Polynesians were skilled navigators who traveled across this vast expanse of water using only the stars, winds, and currents to guide them. They developed a sophisticated system of navigation that allowed them to travel thousands of miles across the open ocean with remarkable accuracy.

One of the primary methods used by the Polynesians to navigate the Polynesian Triangle was celestial navigation. They used the stars, moon, and planets to determine their position and direction. They had an intimate knowledge of the night sky and could identify hundreds of stars and constellations. They used these celestial bodies to create mental maps of the sky that they could use to navigate by. They also used the position of the sun during the day to determine their direction.

Another method used by the Polynesians was wayfinding. Wayfinding is a complex system of navigation that involves observing the natural environment, such as waves, clouds, and birds, to determine one's position and direction. The Polynesians had an intimate knowledge of the ocean currents and wind patterns in their region. They could read the waves and clouds to determine their direction and could even detect land from great distances by observing the behavior of birds.

The Polynesians also used navigational instruments such as the kamalae and the kapele. The kamalae was a wooden board with a small hole in it that was used to measure the angle between two stars. The kapele was a cord with knots tied in it that was used to measure distance traveled.

It is important to note that Indigenous knowledge is often passed down through oral traditions and cultural practices. When interpreting this knowledge, it is essential to do so with respect for its origins and context. Adding interpretations or misrepresenting Indigenous knowledge can dilute its meaning and significance.

In conclusion, the Polynesians used a variety of methods to navigate the Polynesian Triangle, including celestial navigation, wayfinding, and navigational instruments. Their knowledge of the natural environment and their ability to read the stars and currents allowed them to travel vast distances across the open ocean with remarkable accuracy. When interpreting Indigenous knowledge, it is essential to do so with respect for its origins and context.

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Answer:

6 more packs are needed

Step-by-step explanation:

if 6 covers half you will need 6 to.cover the other half

The ball will be 80 feet above the ground after 3 seconds of flight time.

The solution to the problem of writing a Java program that computes how high the ball .

As provided in the problem statement, the height of the object as a function of time can be modeled by the function h(t) = -16t² + vt + h, where h(t) is the height of the object (in feet) t seconds after it is thrown, and h is the starting height, i.e. the height of the building. In this case, h = 128 and v = 32 feet per second (ft/sec).

If the time of flight of the ball is represented as x, then the height of the ball as a function of time can be modeled by the equation h(x) = -16x² + 32x + 128.

Therefore, to determine how high the ball will be above the ground after x seconds of flight time, the program needs to evaluate h(x) by substituting the value of x provided by the user.

For example, if the user provides the value x = 3, the program will evaluate h(3) = -16(3)² + 32(3) + 128 = 80 feet.

Hence, the ball will be 80 feet above the ground after 3 seconds of flight time. The Java program for this can be written using the Scanner class to get user input and the Math class to perform the necessary calculations.

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Answer:

x=8/3

Step-by-step explanation:

6x*10=160

6x=16

x=16/6

x=8/3

Answer:

\(x = 8 \div 3 \\ \\ \)

Answer:

7/20 or 0.35

Step-by-step explanation: