Which transformations could be performed to show that △ABC is similar to △A"B"C"?

Answer:

8.25

Step-by-step explanation:

trapezoid area =

(a+b)/2 times h =

if its 1.5

(4+7)/2 times 1.5 =

11/2 times 1.5 =

5.5 times 1.5 =

8.25

if its 15

5.5 times 15 =

82.5

its probably 1.5

wikipedia

A spool of thread measuring 8 3/4 inches long and 4 inches wide can be cut into 2 1/7 inch pieces.

In light of the conditions stated, come up with: [tex]$\frac{8 \frac{3}{4}}{2 \frac{1}{7}}$[/tex] To improper fractions, change the mixed numbers to: [tex]$\frac{\frac{35}{4}}{\frac{15}{7}}$[/tex] Multiply the reciprocal of a fraction to get its division: [tex]$\frac{35}{4} \times \frac{7}{15}$[/tex]

Mark this common element as a no-go: Multiplying [tex]$\frac{7}{4} \times \frac{7}{3}$[/tex] Mark the common element as absent: Multiplying [tex]$\frac{7 \times 7}{4 \times 3}$[/tex] . Put the following in one fraction : [tex]$\frac{49}{12}$[/tex] . The product or quotient should be

calculated.Find the biggest number that is greater than [tex]$\frac{49}{12}$[/tex] and less than or equal to it . A spool of thread measuring 8 3/4 inches long and 4 inches wide can be cut into 2 1/7 inch pieces.Otherwise, you or a device will need to count 127 turns (the irreducible repeat, independent of thread pitch), after which the half nut must be closed.

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Answer:

Let x be the number of sweets that Ryan has.

Since the ratio of the number of sweets Mary has to the number Ryan has is 3:2, we can say that Mary has 3/2*x sweets.

We know that if Mary gave 5 sweets to Ryan they would have the same number of sweets, so we can write the following equation:

3/2*x -5 = x

By solving this equation, we can find that x = 10. So, Ryan has 10 sweets

Therefore, Mary has 3/2*10 = 15 sweets.

Altogether, Mary and Ryan have 15+10 = 25 sweets.

Answer: 25

Step-by-step explanation:

3x - 5 = 2x, so

x = 5.

And 5x = 5*5 = 25

25 minutes. The time it would take to row across the lake is 15 minutes (1 km/4 km/hour = 0.25 hour), and the time it would take to walk around the lake is 10 minutes (1 km/6 km/hour = 0.1666 hour). Thus, the minimum amount of time necessary to cross the lake is 25 minutes (15 + 10).

1 km/4 km/hour = 0.25 hour (time to row across the lake)

1 km/6 km/hour = 0.1666 hour (time to walk around the lake)

Minimum amount of time necessary to cross the lake = 0.25 + 0.1666 = 0.4166 hour

0.4166 hour x 60 minutes/hour = 25 minutes

Sam can row across the lake in 15 minutes (1 km/4 km/hour = 0.25 hour) or walk around it in 10 minutes (1 km/6 km/hour = 0.1666 hour). The minimum amount of time necessary to cross the lake is 25 minutes (15 + 10), as this is the lowest total time to get from one side to the other.

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Determine appropriate formula to model scenarios.

Sometimes, different formulas can generate similar results. The key is to choose the formula that is most appropriate for the scenario, and it's also important to consider the complexity of the formula and its interpretability.

Based on the problem or question, the available data, and the literature review, determine the appropriate mathematical model to use. The model should be able to capture the key features of the problem or question and provide an accurate representation of the data.

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The slope intercept form of the equation is B) y=2x-6.

What is slope intercept form of the equation?

When the slope of the line being studied is known, and the provided point is also the y intercept, the slope intercept formula, y = mx + b, is utilised (0, b).   It provides both a slope and an intercept, which is why the form is known as the slope-intercept form.

Here According to the table using two points [tex](x_1,y_1) =(0,-6)[/tex] and [tex](x_2,y_2)=(3,0)[/tex] .

Now using slope formula m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

=> m = [tex]\frac{0-(-6)}{3-0}[/tex]

=> m = [tex]\frac{6}{3} = 2[/tex]

Now using equation formula then

=> [tex]y-y_1=m(x-x_1)[/tex]

=> y-(-6)=2(x-0)

=> y+6 = 2x

=> y = 2x-6

Hence the slope intercept form of the equation is B) y=2x-6.

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The total number of different collections of pets your roommate can take is 10 + 10 = 20.

In this scenario, your roommate has two options for which pets to take with him: either the dog or the cat. If he takes the dog, he can take any two of the remaining five pets (fish, turtle, rock, pony). There are 5 choose 2 = 10 ways for him to do this. If he takes the cat, he can take any two of the remaining five pets (fish, turtle, rock, pony, dog). There are 5 choose 2 = 10 ways for him to do this.

Therefore, the total number of different collections of pets your roommate can take is 10 + 10 = 20.

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Answer:

$27,400.

Step-by-step explanation:

We know that the salesman makes $25,000 annually plus 6% commission on his total sales.

We also know that he sold $40,000 worth of trampolines this year.

So we can find out his commission by multiplying the value of sales with 6% commission rate.

Commission = 0.06 * $40,000 = $2400

To find out his total earnings we need to add his annual salary with commission earned.

Total earnings = $25,000 + $2400 = $27,400

So the salesman's total earnings for this year is $27,400.

Answer:

add up variables and divide by 2

Converted (a) 2.2 kg = 77.6 oz, 4.83 lbm. (b) 12 lbf/in2 = 82.7 kPa, 620.6 mmHg. (c) 160 hp = 119,360 cal/s, 88,000 Btu/s. (d) 82 gallons = 328 quarts, 313,981.8 mL. (e) 34 in = 0.8636 m, 86.36 cm.

What is conversion factor ?

A conversion factor is a ratio of two equivalent measurements used to convert a quantity from one unit to another.

(a) To convert 2.2 kg to ounces, we can use the conversion factor 1 kg = 35.274 oz. So, 2.2 kg = 2.2 * 35.274 oz = 77.6 oz. To convert 2.2 kg to lbm, we can use the conversion factor 1 kg = 2.205 lbm. So, 2.2 kg = 2.2 * 2.205 lbm = 4.83 lbm.

(b) To convert 12 lbf/in2 to kPa, we can use the conversion factor 1 lbf/in2 = 6.894 kPa. So, 12 lbf/in2 = 12 * 6.894 kPa = 82.7 kPa. To convert 12 lbf/in2 to mmHg, we can use the conversion factor 1 lbf/in2 = 51.715 mmHg. So, 12 lbf/in2 = 12 * 51.715 mmHg = 620.6 mmHg.

(c) To convert 160 hp to cal/s, we can use the conversion factor 1 hp = 746 cal/s. So, 160 hp = 160 * 746 cal/s = 119,360 cal/s. To convert 160 hp to Btu/s, we can use the conversion factor 1 hp = 550 Btu/s. So, 160 hp = 160 * 550 Btu/s = 88,000 Btu/s.

(d) To convert 82 gallons to quarts, we can use the conversion factor 1 gallon = 4 quarts. So, 82 gallons = 82 * 4 quarts = 328 quarts. To convert 82 gallons to mL, we can use the conversion factor 1 gallon = 3785.4 mL. So, 82 gallons = 82 * 3785.4 mL = 313,981.8 mL

(e) To convert 34 in to m, we can use the conversion factor 1 in = 0.0254 m. So, 34 in = 34 * 0.0254 m = 0.8636 m. To convert 34 in to cm, we can use the conversion factor 1 in = 2.54 cm. So, 34 in = 34 * 2.54 cm = 86.36 cm.

Converted (a) 2.2 kg = 77.6 oz, 4.83 lbm. (b) 12 lbf/in2 = 82.7 kPa, 620.6 mmHg. (c) 160 hp = 119,360 cal/s, 88,000 Btu/s. (d) 82 gallons = 328 quarts, 313,981.8 mL. (e) 34 in = 0.8636 m, 86.36 cm.

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The exact value of the trigonometric expression [tex]\frac{tan-(2\pi/3) }{sin(7\pi /4)} - sec(-\pi )[/tex] in the simplified radical form is √6  +  1.

[tex]\frac{tan-(2\pi/3) }{sin(7\pi /4)} - sec(-\pi )[/tex]

We have the angle,

-2π/3  =  -120° = (360 - 120)°  = 240° = 60°

Put the value of -2π/3 in tan -2π/3, we get

tan -2π/3 =  tan (60)  = √3

7π/4 × 180/π  =  7 × (180/4)  =  7 × 45  =  315° =  45°

Put the value of 7π/4 in sin 7π/4, and we get

sin 7π/4 = sin (45°) = √2/2

sec (-π)  =  sec (π)  = -1

Now, substitute all the values in the given equation,

= {√3/(√2/2)} - (-1)

= (2√3/√2) + 1

= (2√3 × √2/√2 × √2) +1

= (2√6/2) + 1

= √6 + 1

--The given question is incorrect, the correct question is

''What is the exact value of the trigonometric expression? [tex]\frac{tan-(2\pi/3) }{sin(7\pi /4)} - sec(-\pi )[/tex] State your answer in simplified radical form."--

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The ratio in simplest form in the three cases is 5 : 6, 36 : 29 and 1 : 5.

30 treadmills to 36 elliptical machines can be simplified to 5 treadmills to 6 elliptical machines. To simplify, you can divide both numbers by their greatest common factor, which in this case is 6.

30/6 = 5 and 36/6 = 6

So 30 : 36 = 5 : 6

180 red marbles to 145 blue marbles can be simplified to 12 red marbles to 11 blue marbles. To simplify, you can divide both numbers by their greatest common factor, which in this case is 5.

180/5 = 36 and 145/5 = 29

180 : 145 = 36 : 29

In the word "flashlight", the ratio of vowels to total letters is 2:8. The word "flashlight" has 2 vowels (a,i) and 10 total letters. To simplify divide by 2.

2 : 10 = 1 : 5

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Step-by-step explanation:

let addicts be x and Nike be x+6

so ,

x+x+6=12

or,2x=6

or x=-3

now x+6=3+6=9

therefore he had 9 Nike and 3 Adidas

Answer:

Slope = 47

Step-by-step explanation:

 Substitute the x and y coordinates in the formula and find the slope.

  (7 , 349 ) ;  x₁ = 7 ; y₁ = 349

  (2 , 114) ;  x₂ = 2 ; y₂ = 114

[tex]\sf \boxed{Slope=\dfrac{y_2-y_1}{x_2-x_1}}[/tex]

          [tex]\sf = \dfrac{114-349}{2-7}\\\\=\dfrac{-235}{-5}\\\\=47[/tex]

Answer: m=47

Step-by-step explanation:

                               [tex]\displaystyle\\The \ slope\ m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Given: (7,349)  (2,114)         Find: m

x₁=7       x₂=2      y₁=349      y₂=114

[tex]\displaystyle\\m=\frac{114-349}{2-7} \\\\\\m=\frac{-235}{-5} \\\\\\m=47[/tex]

No, The number zero is neither positive nor negative.

Aryabhata, who is known as a great astronomer of the classic age of India was the one who invented the digit “0” for which he became immortal but later on is given to Brahmagupta.

The numbers to the right of zero on the number line are positive and those on the left side are negative.

Positive numbers are greater than 0 and located to the right of 0 on a number line. Negative numbers are less than 0 and are located to the left of 0 on a number line.

Positive and negative numbers are sometimes called signed numbers.

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Algebra test because the correlation is higher.

What does a statistical correlation mean?

A statistical metric known as correlation, which is given as a number, describes the strength and direction of a relationship between two or more variables.

                         Although there may be a correlation between two variables, this does not necessarily imply that the change in one variable is what led to the change in the values of the other variable.

Why correlation, you ask?

In common conversation, we use the word correlation to describe situations where two or more items seem to be connected.

                       In the field of analytics, correlations are certain numbers that are computed to express how closely related variables are to one another.

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A circle chart, often known as a pie chart, is a means to summarize a set of nominal data or a visual depiction of the many values of a particular variable (e.g. percentage distribution).

A circle is created in the plane by each point that is a specific distance from another point (center). Thus, it is a curve made up of points that are separated from one another by a defined distance in the plane. Additionally, it is rotationally symmetric about center at every angle. Every pair of vertices in a circle's closed, two-dimensional plane are evenly spaced apart from the "center." A circular symmetry line is made by drawing a line through the circle. Additionally, it is rotationally symmetric the about center at every angle.

Here,

The pie chart is divided into sectors and segments, and each sector and segment corresponds to a specific amount of the overall (percentage).

The data is a representation of 360°. The pie is always valued at 100% overall.

A pie chart is useful for organising and displaying data by percentage of the total.

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Answer:

I find it best to view these equation in the slope-intercept form.

-7x - 5y = -1

Let's rearrange the terms to isolate the y and put the equation in the y=mx+b form

5y = -1 + 7x

y = -1/5 + (7/1)x

or y = +(7/1) x + -1/5

Here m, the slope, = 7/1

A line parallel to this line will have the same slope or 7/1

A line perpendicular to this line will have a slope that is the negative inverse of this slope, in other words -1/7

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If Sₙ denotes the sum of the reciprocals of the non-zero digits of the integers from 1 to 10ⁿ inclusive , then the smallest positive integer n for which Sₙ is an integer is 63 .

The "Sₙ" be the sum of reciprocals of the non-zero digits of the integers from 1 to 10ⁿ inclusive ;

We Let [tex]K= \sum_{i=1} ^{9} \frac{1}{i}[/tex] ,

On further examination , we get that , [tex]S_{1} =K+1[/tex] ;

Since each digit "n" appears once and the number 1 appears for an extra time.

Now , we write  S₂ .

So ,Each term of K will appear 10 times in the units place and 10 times in the tens place ,

So , we get [tex]S_{2} = (n10^{n-1})K+1[/tex] ; and there are total "n" places ;

The denominator of K is written as [tex]D=2^{3} .3^{2} .5.7[/tex] .

For Sₙ to be an integer, [tex]n10^{n-1}[/tex] must be divisible by D , we must select "n" to be divisible by [tex]3^{2} .7[/tex]   .

And since need to find the smallest integer "n" , So , the n is [tex]3^{2} .7 = 63[/tex] .

Therefore , For Sₙ to be an integer , the smallest positive integer n is 63 .

The given question is incomplete , the complete question is

Let Sₙ be the sum of the reciprocals of the non-zero digits of the integers from 1 to 10ⁿ inclusive. find the smallest positive integer n for which Sₙ is an integer .

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The linear function with a slope of -1/4 and intercept of -5 is given as follows:

f(x) = -0.25x - 5.

The slope-intercept definition of a linear function is given as follows:

y = mx + b.

In which:

The parameters for this problem are given as follows:

Comparing to the standard definition, the linear function is defined as follows:

f(x) = -0.25x - 5.

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The ordered set pairs (-2, 2), (-1, 2), (3, -1), (3, 1), (4, 11),

is not a function. Because one x value corresponds to two different y values.

Given a set of ordered pairs (-2, 2), (-1, 2), (3, -1), (3, 1), (4, 11),

Function is special relations that pair each member of set A (domain) with exactly one member of set B (codomain).

Discuss the options provided.

a. yes, because there are two x values that are the same that is 3. Then the statement is false, the value of x cannot be the same.

b yes, because every x value corresponds to exactly one y-value. Then the statement is false.

c. no, because two of the y-values are the same. Then the statement is false.

d. no, because one xvalue corresponds to two different y-values. Then the statement is true.

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Answer: [tex]303^{\circ}[/tex]

Step-by-step explanation:

The point [tex]P[/tex] lies in the fourth quadrant, so the angle is given by [tex]360^{\circ}-\alpha[/tex], where [tex]\alpha[/tex] is the reference angle.

The reference angle is given by [tex]\arctan \left(\frac{\frac{\sqrt{7}}{4}}{\frac{\sqrt{3}}{4}} \right)=\arctan \left(\sqrt{\frac{7}{3}} \right)[/tex].

This means [tex]\theta=360^{\circ}-\arctan \left(\sqrt{\frac{7}{3}}} \right) \approx 303^{\circ}[/tex].

Answer:

2 1/5

Step-by-step explanation:

This implied that they were unable to rule themselves and establish their own rules. The king demanded that they pay enormous taxes.

They believed they were contributing taxes to an unrepresentative administration. They were also upset that the colonists had to allow the British soldiers to eat and sleep in their residences.

The colonists of America formed a protest in response to the actions of Parliament. A network of covert organizations called the Sons of Liberty was established throughout the colonies with the intention of scaring the tax collectors for Parliament. migrated to America because they wanted political liberty. They desired both economic opportunity and religious freedom. Self-government and individual liberties are valued in the United States.

Because the colonists opposed the British,

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Answer:

8x + 2y = 10  ==>  y = -4x + 5

12x - 3y = -25​  ==>  y = 4x + 25/3

Step-by-step explanation:

8x + 2y = 10  ==> solve for y

2y = 10 - 8x  ==> subtract 8x on both sides

(2y = 10 - 8x) / 2 ==> divide the equation by 2 to make 2y into y

y = 5 - 4x  ==> simplify

y = -4x + 5  ==> put the equation in y=mx+b form

12x - 3y = -25​  ==> solve for y

12x = -25 + 3y  ==> make y positive by adding 3y on both sides

12x + 25 = 3y ==> add 25 on both sides to isolate y

(3y = 12x + 25) / 3  ==> divide the equation by 3 to make 3y into y

y = 4x + 25/3 ==> simplify

Step-by-step explanation:

(a)

the line for time = 0 minutes starts at y (pounds of candy) = 40 pounds

(b)

as the line goes up, when the time goes up, it is clear that the function result (the amount of candy in the container) increases, as the time increases.

so, the second answer option is correct.

to find the rate of pound of candy per minute, we need to find the slope.

one unit on the coordinate grid in the time (x) direction is 1 minute.

one unit in the pounds of candy (y) direction is 40 pounds (0, 40, 80, 120, ...).

when we look at what corners of the coordinate grid units the line goes through (to find integer numbers of the function), we see that the line goes through e.g.

(0, 40)

(1, 160)

(2, 280)

...

we see that x anyways changes by +1, and y anyways charges by +120.

the slope is therefore +120/+1 = 120.

the increase rate of the amount of candy in the container is 120 pounds per minute

The probability that all three Escher prints will be placed consecutively is 3/5 or 0.6

The probability that all three pieces by Escher will be placed consecutively when hanging the 10 pieces of art in a random order is the probability that the 3 Escher prints will be in a row among the other 7 pieces.

There are 10!/(3! × 7!) = 120 ways to order the 10 pieces of art, and 3! = 6 ways to order the 3 Escher prints among themselves.

So the total number of ways to order the art such that the Escher prints are consecutive is 120 × 6 = 720.

Now to find the probability that all three Escher prints will be placed consecutively, we divide the number of ways that this can happen (720) by the total number of ways the art can be arranged (120) to get 720/120 = 6/10 = 3/5.

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i) Joint density distribution function  is given as

f(x,y) =  1/2Πσ1σ2  exp[(-1)/2 {((x-µ1)^2)/(σ1^2)+ ((y-µ2))/(σ2^2)}]

ii) E(aX + bY + c) = aµx + bµy + c iii) E(X^2) = σx^2 + µx^2

We have been given that, X ~ N(µx , σx^2) and Y~ N(µy , σy^2)

and X and Y are independent that is

                                ρ = 0

Note that the joint density function of two normal distribution is known as bivariate normal distribution which is given as

   (X , Y) ~ BVN(µ1 , µ2 , σ1^2 , σ2^2 , ρ)

And whose joint density function is          

f(x,y)  =   1/(2Πσ1σ2√(1-ρ^2))  exp[(-1)/(2(1-ρ^2)) {((x-µ1)^2)/(σ1^2)-2ρ (x-µ1)(y-µ2)/σ1σ2+ ((y-µ2))/(σ2^2)}]

 Where ρ = correlation coefficient of (x,y)

i) Joint density function of given X and Y which follows

(X , Y) ~ BVN(µx , µy , σx^2 , σy^2 , 0) is given as

f(x,y) =  1/2Πσ1σ2  exp[(-1)/2 {((x-µ1)^2)/(σ1^2)+ ((y-µ2))/(σ2^2)}]

ii) E(aX + bY + c) = aE(X) + bE(Y) + c

                       = aµx + bµy + c

iii) E(X^2) = V(X) + [E(X)]^2      {V(X) = E(X^2) - [E(X)]^2}

           = σx^2 + µx^2

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Answer:

yes

Step-by-step explanation:

The absolute value is only greater than or equal to zero.

Answer:

About 50 percent

Step-by-step explanation: