In Exercises 1 and 2, find the scale factor. Then list all palrs of congruent angles and

write the ratios of the corresponding side lengths in a statement of proportionality.



In Exercises 3 and 4, the polygons are similar. Find the value of x.

Answers

Answer 1

In exercises 1 and 2:

The scale factor is 4/3 and 2/3The congruent angles are: A = HB = IC = JW = SX = TY = UZ = VThe ratio of the correspoding side length: 4/3 and 2/3

In exercise 3 and 4, the value of x is 6 and 9

Please refer to the attached picture below as the referrence

Exercise 1

The scale factor of the two triangles can be calculated by comparing the smallest side of both triangle. We will use side AB on ABC and side HI on HIJ. The scale factor of the two triangles is:

AB = 36  = 4

HI       27       3

The congruent angles of the two triangles are

A = H

B = I

C = J

The ratio of corresponding side lengths are:

AB = 36  = 4

HI       27       3

BC  =  42   =  4  

IJ       31.5     3

CA  =     59   = 4

JH       44.25     3

The ratio of corresponding side lenghts is 3/4

Exercise 2  

The scale factor of the two trapesium can be calculated by comparing the smallest side of both triangle. We will use side XY on WXYZ and side TU on STUV. The scale factor of the two triangles is:

XY  = 4  = 2

TU      6     3

The congruent angles of the two triangles are

W = S

X = T

Y = U

Z = V

The ratio of corresponding side lengths are:

WX  =  7     = 2

ST      10.5     3

XY  = 4  = 2

TU      6     3

YZ =   7    =  2  

UV     10.5     3

ZW = 10 =  2

VS     15     3

The ratio of corresponding side lenghts is 2/3

Exercise 3

We can find the ratio of corresponding side lengths using the gvien data. We name the small parallelogram as A and the large one as B.

Side A = 2 = 1.5

Side B     8      x

2x = 12

x = 6

Exercise 4

We can divide the poligons into 2 proportionally similar triangle. We name the small triangle as triangle C and the large one as triangle D.

Side C = 6 = x

Side D     10    15

6 = x

10     15

3  =  x

5     15

45 = 5x

x = 9

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In Exercises 1 And 2, Find The Scale Factor. Then List All Palrs Of Congruent Angles Andwrite The Ratios

Related Questions

Please help me with math problem!! Will give brainliest!! :) It's due tonight!! 20 POINTS!!!

Answers

Answer:

[tex]\boxed{21.691} \; feet[/tex]

Step-by-step explanation:

See attached figure

The power cable going south first by 50 feet and then going west by 30 feet form the legs of a right triangle.

The diagonal which is the shortest distance between start and end points can be computed by the Pythagorean theorem

[tex]c^2 = a^2 + b^2[/tex]

where c is the hypotenuse and a, b the other two sides

Plugging in values for a = 50 and b = 30 we get

[tex]c^2 = 50^2 + 30^2\\\\c^2 = 2500 + 900\\\\c^2 = 3400\\\\c = \sqrt{3400}\\\\c = 58.3095 \;feet[/tex]

The cable length if going south and then west will be 50 + 30  = 80 feet

So cable length saved = 80 - 58.3095 = 21.6905

Rounded to 3 decimal places this would be 21.691 feet

Answer:

By using the Pythagorean Theorem, we can calculate that the diagonal of the city block is approximately 58.3 feet long. This means that the power company could save 7.3 feet of powerline cable by running the powerlines across the diagonal of the city block, instead of around the south and west sides.

5. Find the sum. –10 + 1 + (–6) (1 point) –15 –17 –3 5

Answers

The simplified value of the expression - 10 + 1 + (- 6). - (15 - 17 - 35) is 20.

What is PEMDAS rule?

PEMDAS rule states the correct order of simplifying an expression is as follows -: Parenthesis, exponents, multiplications, divisions, additions, and, subtractions.

Given, An expression - 10 + 1 + (- 6). - (15 - 17 - 35).

Now, If any of the arithmetic operations are not present we'll simply do the next and we'll also distribute the negative and positive signs.

- 10 + 1 + (- 6). - (15 - 17 - 35).

= - 10 + 1 - 6 - 15 + 15 + 35.

= - 9 - 21 + 50.

= - 30 + 50.

= 20.

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A city currently ha 132 treetlight. A part of an urban renewal program, the city council ha decided to intall 4 additional treetlight at the end of each week for the next 52 week. Ue thi information to complete the following tatement. Round to the nearet whole number a needed. The city will have (blank) treetlight at the end of 46 week. The city will have 232 treetlight at the end of (blank) week

Answers

The city will have 316 streetlights at the end of 46 weeks.The city will have 232 streetlights at the end of 25 weeks

What are algebraic operations?

They are the set of numbers and symbols that are related by the different mathematical operation signs such as addition, subtraction, multiplication, division among others.

According to the data problem,

At the end of 46 week the city will have: 132 streetlight + (4 streetlight/ week * 46 weeks)

At the end of 46 week the city will have: 132 streetlight  + 184 streetlight

At the end of 46 week the city will have: 316 streetlight

232 streetlight at the end of the week = (232 streetlight - 132 streetlight) / 4 streetlight /week

232 streetlight at the end of the week = 100 streetlight /4 streetlight /week

232 streetlight at the end of the week = 25 weeks

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Correctly written question:

A city currently has 132 streetlights. As part of an urban renewal program, the city council has decided to install 4 additional streetlights at the end of each week for the next 52 weeks. Use this information to complete the following statements. Round to the nearest whole number as needed. The city will have (blank) streetlights at the end of 46 weeks. The city will have 232 streetlights at the end of (blank) week

frustrated freight may never reach the intended recipient T/F

Answers

True, Frustrated Freight is any freight or shipment that it has been halted from moving.

Generally speaking, the elements that make a bundle quit moving or being shipped to the normal beneficiary are issues to do with marking, bundling, as well as making.

Frustrated Freight alludes to products that can't be conveyed to the expected beneficiary because of different reasons like an erroneous location, beneficiary inaccessibility, or harm during travel.

This can prompt the shipment never arrive at its expected objective, causing disillusionment for the shipper and beneficiary, and possibly bringing about monetary misfortunes.

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Let u = 26 [ 4 -2] and A= -5 9 . Is u in the plane in R3 spanned by the columns of A? Why or why not? 1 1 Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or decimal for each matrix element.) O A. Yes, multiplying A by the vector writes u as a linear combination of the columns of A. O B. No, the reduced row echelon form of the augmented matrix is , which is an inconsistent system

Answers

No, u is not in the plane spanned by the columns of A.

To check if u is in the plane spanned by the columns of A, we first need to construct the augmented matrix of the system A · x = u, where x is the vector of unknowns. The augmented matrix is:

[−5 9 | 26 4 −2]

The reduced row echelon form of this augmented matrix is:

[1 0 | 2 -1]

This is an inconsistent system,the reduced row echelon form of the augmented matrix is , which is an inconsistent system so it does not have any solutions. This means that u cannot be written as a linear combination of the columns of A, so it is not in the plane spanned by the columns of A.

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hey can you help me find the domain and range

Answers

The domain is all x-values or inputs of a function & the range is all y-values or outputs of a function.

How to find domain and range?

The numbers you supply to the function are referred to as the domain. The numbers it returns to you are referred to as the "range."

Take y=3x as an illustration. The domain of this function is "all real numbers," so you can substitute any number you like for x. (or everything from negative infinity to positive infinity, if you like). Furthermore, as you can probably guess, any actual number could result from it. (You desire the release of a specific real-world number. To get there, enter x as one-third of that number. As a result, "all real numbers" are included in this function's range.

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The function C = x - 2y is minimized at the vertex point of the feasible region at (1, 0). What is the minimum value?

Answers

The minimum value of the function C = x - 2y at the vertex point (1,0) is 1.

So, when we substitute x = 1 and y = 0 into the function, we get:

C = 1 - 2 * 0 = 1.

Therefore, the minimum value of the function is 1.

The heights of the bars of a histogram correspond to ______ values.

Answers

The heights of the bars of a histogram correspond to Frequency values.

A histogram is a type of graph used to show the distribution of a dataset. It is used to display the frequency of values within the data set by depicting the number of observations that fall within a set of ranges.

The heights of the bars of a histogram correspond to the frequency of values within the data set.

A histogram is used to illustrate the distribution of data within a set by showing the number of data points that fall within a specified range of values (called bins).

The height of each bar in the histogram represents the frequency of values within the bin range. A taller bar indicates that more data points fall within that range. The area of each bar is also proportional to the frequency of the values in the bin.

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Evaluate lim f(x) and lim f(x) for the following function. Use co or co where appropriate. Then give the horizontal asymptote(s) of f (if any).
f(x)= 3x^3+8/4x^3+√ 64x^64

Answers

The limit of f(x) as x approaches positive infinity and negative infinity is equal to 3/4, and the horizontal asymptote of the function is y=3/4.

The horizontal asymptote of a function is a horizontal line that the function approaches as x approaches infinity or negative infinity.

The function f(x) is given by

=> f(x)= 3x³ + 8/4x³ + √ 64x⁶⁴.

To evaluate the limits, we need to consider what happens as x approaches positive infinity and negative infinity.

In this case, as x approaches positive infinity or negative infinity, the x³ term in the numerator and denominator will dominate and the limit of the function will be equal to 3/4.

This means that the function has a horizontal asymptote of y=3/4.

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In a certain species of plant, the color purple (p) is dominant to the color white (p). According to the punnett square, what is the probability of an offspring being white?.

Answers

Punnett square is a diagrammatic representation of genotypes of a distinct cross in organisms.

what is the probability of an offspring being white?.

Punnett square is a diagrammatic representation of genotypes of a distinct cross in organisms.

It is used to know the result of the genotype of the offspring having either having single or multiple traits.

The correct answers are:

1.Option C. 0%

In the Punnett square the cross is between the purebred dominant and purebred recessive parent.

This will result in all the offspring having a heterogeneous genotype trait carrying purple color. Hence 0% will carry white color.

2. Option D. 25%

It can be explained as:

Due to the presence of heterogenous parent species. It will result in 25% of offspring carrying white color.

Therefore, in question 1, 0% of plants will be white while in another question 25% of the offspring will carry the white color trait.

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The surface area of a sphere is 544 cm². Find its diameter. Take π= 22/7 (Give your answer correct to 1 decimal place)​

Answers

Answer:

13.2cm

Step-by-step explanation:

The surface area of the sphere=4πr∧2

take r as radius, so you have to find the diameter. which means d/2=r

So,

4*22/7* (d/2)²=544

d=13.15

to the first decimal place= d= 13.2 cm.

use the general slicing mothod to find the volume of the following solid. The solid with a semicircular base of radius 9 whose cross section is perpendicular to the base and parallel to the diameter are squares. Place the semicircle on the xy-plane so that its diameter is on the x-axis and it is centered on the y-axis. Set up the integral that gives the volume of the solid. Use increasing limits of integration.

Answers

The volume of the solid is approximately equal to 441.75 π cubic units.

The volume of the solid can be found using the disk method of integration. To set up the integral, consider a disk of height 'h' and radius 'r' at position y. The volume of this disk is given by πr^2h, and the radius 'r' is equal to 9 - y. Therefore, the volume of the solid is given by the following triple integral:

[tex]V = \int\{\pi(9 - y)^2dy} \int\,dh \int\,dx[/tex]

Where the limits of integration are:

For x: 0 to 9 (since the square cross-section has side length of 9)For h: 0 to x (since the height of the disk cannot be greater than the distance from the xy-plane)For y: 0 to 9 (since the radius of the semicircle is 9)

So, the final expression for the volume is:

[tex]V = \int\limits^{9}_{y=0} \int\limits^{x}_{h=0} \int\limits^{9}_{x=0} \pi (9 - y)^2 dh dx dy[/tex]

Evaluating the integral gives:

[tex]V = \pi \int\limits_{y=0}^{9} (9 - y)^2dy \int\limits_{h=0}^{x} dh \int\limits_{x=0}^{9} dx[/tex]

[tex]= \pi \int\limits_{y=0}^{9} (81 - 18y + y^2)dy \int\limits_{h=0}^{x} dh \int\limits_{x=0}^{9} dx[/tex]

[tex]= \pi \int\limits_{y=0}^{9} (81 - 18y + y^2)dy (x^2/2) dx[/tex]

[tex]= \pi /2 \int\limits_{y=0}^{9} (81 - 18y + y^2)dy (x^2) dx[/tex]

[tex]= 441.75 \pi[/tex]

Hence, the volume of the solid is approximately equal to 441.75 π cubic units.

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What are the 6 Laws of logarithms?

Answers

Here, i found the 6 Laws/rules of logarithm.

How do you know if results are practically significant?

Answers

In order to determine the practical significance requires considering both the effect size measures and the context of the study

One way to determine practical significance is by using effect size measures. Effect size is a standardized measurement of the magnitude of a treatment or intervention.

A common equation used to calculate effect size is Cohen's d, which is the difference between the means of two groups divided by the standard deviation.

Another equation used is the odds ratio, which is the ratio of the odds of an event occurring in one group compared to another.

Additionally, it is important to consider the context of the study when evaluating practical significance.

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given the linear system y[n] = 0.25y[n-1] x[n] for n > 0 and y[-1]=0 system is described by the impulse response h[n] = [0.25]nu[n]. determine if the system is stable or not

Answers

The system is stable since the magnitude of its impulse response is 0.25, which is a finite number that is less than any M.

The stability of a linear system can be determined by analyzing the magnitude of its impulse response

|h[n]| ≤ M for some finite M

In this case, the impulse response is h[n] = 0.25nu[n], where nu[n] is the unit step function. Since the magnitude of h[n] is 0.25 for all n, the system is stable since 0.25 is a finite number that is less than any M.

To summarize, the system is stable since the magnitude of its impulse response is 0.25, which is a finite number that is less than any M.

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Gayle bought a shirt that was originally marked as $18. She had a coupon to receive 15% off the price. Gayle

had to pay 7. 5% sales tax on her shirt. What price did Gayle pay for the shirt?

Answers

sssssssssaStep-by-step explanation:

To find the roots of a polynomial, it is often useful to find the ____ of the polynomial.

Answers

Answer:

factors

Step-by-step explanation:

To find the roots of a polynomial, it is often useful to find the Factors of the polynomial.

What does 1 tbsp equal to in mL?

Answers

15mL is also equivalent to one tablespoon.

What is 1 teaspoon equal to in mL?Recall that 1/2 a teaspoon is 2.5 mL and that 1 level teaspoon = 5 mL.Approximately 2.5 to 7.3 mL is the size range for teaspoons (0.088 to 0.257 imp fl oz; 0.085 to 0.247 US fl oz). A teaspoonful is equal to 5 mL (0.18 imp fl oz; 0.17 US fl oz) when used for cookery and medication dosage, when standard measuring spoons are employed.In the metric system, a milliliter—abbreviated as ml or mL—is a unit of volume. One cubic centimetre, or one millilitre, is equivalent to one thousandth of a litre. 004 of a cup is a tiny measurement in the imperial system. One tablespoon is around the size of a regular big dinner spoon.

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What is a distribution that has both mean and median of (-15)?

Answers

A distribution that has both mean and median of (-15) is referred to as a perfectly symmetrical distribution.

What is a Perfectly symmetrical distribution?

This is referred to as a type of distribution in which the values of the mean and the median are the same as they are the central component of inferential statistics.

In this scenario, we were given the mean and median to be of the same value which is (-15) which therefore denotes that the type of distribution is a perfectly symmetrical one.

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a woman has two kids, one of which is a girl. what is the probability of the other child being a girl?

Answers

The probability of the other child being a girl is 1/2

How to determine the probability

From the question, we have the following parameters that can be used in our computation:

Kids = 2

Girls = 1

The probability of the other child being a girl is calculated as

Probability = Girl/Kids

Substitute the known values in the above equation, so, we have the following representation

Probability = 1/2

Hence, the probability is 1/2

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How do you convert acres to miles?

Answers

The convert acres to miles 0.0015625.

What is meant by miles ?

The mile is a customary unit of measurement in the United States and the United Kingdom that is based on the older English unit of length equal to 5,280 English feet, or 1,760 yards. It is often referred to as the international mile or statute mile to distinguish it from other miles. In 1959, the statute mile was formally redefined with respect to SI units as precisely 1,609.344 metres, establishing a standard between the British Commonwealth and the United States.The Romans split a mile into 5,000 Roman feet, but in Elizabethan England, where furlongs were valued more highly, the statute mile was changed in 1593 to be equal to 8 furlongs, or 5,280 feet.

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Can someone please help me with this? I don’t understand. Show work please.

Answers

Answer:

A

Step-by-step explanation:

angle 1+ angle 2 =180

so  2x-6+4x =180

6x =186

x =31

angle 1 = 2x-6 =31*2-6=62-6 = 56

angl2 =4x =31*4 =134

The parametric equationsx = u, y = ucosv, z = usinv, with 0 ≤ u ≤ 2, 0 ≤ v ≤ 2π represent the cone that results when the line y = x (where 0 ≤ x ≤ 2) in the xy−plane is revolved about the x−axis. Sketch the cone, and calculate its surface area.

Answers

The surface area of the cone with the given parametric equation is (4π + 4π√2) square units.

The parametric equations describe a cone that is generated by rotating a line segment in the xy-plane about the x-axis. The result is a 3-dimensional surface that has a circular base with radius 2 and a height of 2.

The surface area of the cone can be calculated using the formula:

A = πr^2 + πrs

where r is the radius of the circular base and s is the slant height.

The slant height is equal to the distance from the center of the circular base to the tip of the cone, which can be calculated using the Pythagorean theorem: s = √(h^2 + r^2), where h is the height of the cone.

Therefore, for this cone with radius 2 and height 2, the surface area can be calculated as:

A = πr^2 + πrs

= π * 2^2 + π * 2 * √(2^2 + 2^2)

= 4π + 4π√2

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. if v in r 3 and v · v = 0, then v is the zero vector. is it true or false? explain your answer

Answers

The statement "if v in R3 and v · v = 0, then v is the zero vector" is true

In mathematics, a vector is an ordered tuple of numbers or scalars that can be used to represent a quantity that has both magnitude and direction. Vectors are used to model physical quantities such as displacement, velocity, and force, among others.

Here we have given that if v in r 3 and v · v = 0, then v is the zero vector.

It is true because if the dot product of a vector with itself is zero, it means that the magnitude of the vector is zero and thus it is the zero vector. Understanding the concept of a zero vector and its relationship with other vectors is important in mathematics and physics.

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Elijah spends $6.65 at the concession stand. He paid with a $10 bill. How much
change did Elijah get back?
Elijah received $ in change.

Answers

Answer:$3.35

subtract 10.00 - 6.65

You will get $3.35

                   

The equation s equals three fourths times f represents the proportional relationship between the amount of sugar (s) and flour (f) in a recipe. Which table represents the equation of the proportional relationship?


Sugar Flour
1 six fourths
2 three fourths

Sugar Flour
six fourths 1
three fourths 2

Sugar Flour
three fourths 1
six fourths 2

Sugar Flour
1 three fourths
2 six fourths

Answers

The table that represents the equation of the proportional relationship is; Table 4

How to find the proportional relationship?

A proportional relationship is defined as a mathematical relationship that exists between two variables in which their ratio is always equal.

We have that the equation s equals three fourths times f. This is expressed as;

s = ³/₄f

where;

s is the amount of sugar

f is the amount of flour

Table 1;

when f = 1

s = ³/₄(1)

s = ³/₄

when f = 2

s = ³/₄(2)

s = 6/4

Thus, table 4 is correct

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Suppose that the data y = (y1,..., yn) are a sample from a normal distribution with unknown
mean θ and known standard deviation σ = 2. Our prior distribution p(θ) is normal with mean
0 and standard deviation σ0.
(a) For an uninformative prior, do we need a large or small value for σ0? [2]
(b) We want the prior probability P(|θ| ≤ A+10) to be 0.95, where A is the third-to-last digit
of your ID number. What value for σ0 should we choose? [4]
(c) A colleague prefers a Cauchy distribution as a prior. What is a possible reason for this
preference?

Answers

the data y = (y1,..., yn) are a sample from a normal distribution with unknown mean θ and known standard deviation σ = 2. Our prior distribution p(θ) is normal with mean 0 and standard deviation σ0.

y > 3/2, α² → 0 ⇒p(Ф=2Iy) → 1 y < 3/2, α² → 0 ⇒p(Ф=1Iy) → 1

We have two cases for Ф,

1.  Ф=1; it implies that Pr(Ф=1)=0.5, while y~N(1,α²)

2. Ф=2; it implies that Pr(Ф=2)=0.5, while y~N(2,α²)

Now,

For 1st case of α=2,

We have marginal probability density formula

p(y)=∑p(yIФ)p(Ф)

=p(yIФ=1)p(Ф=1)+p(yIФ=2)p(Ф=2)

=N(yI1,2²)(1/2)+N(yI2,2²)(1/2)

=(1/2)[N(yI1,2²)+N(yI2,2²)]

Now.

For Pr(Ф=1Iy=1) at α=2

We have,

=p(Ф=1Iy=1)

=[p(y=1,Ф=1)]/[p(y=1)]

=[p(y=1IФ=1)p(Ф=1)]/[p(y=1)]

={(1/)exp[(-1/(2*2²))(1-1)²(1/2)]}/{(1/)(1/2)[exp[(-1/(2*2²))(1-1)²]+exp[(-1/(2*2²))(1-2)²]}

=0.53 Answer

Now, to describe the changes in shape of Ф when α is increased and decreased deviation

The formula for posterioir density is p(ФIy)=p(yIФ)p(Ф)/p(y)

=exp[(-1/(2α²)(y-Ф)²]/{exp[(-1/(2α²)(y-1)²]+exp[(-1/(2α²))(y-2)²]}

Now at Ф=1 and solving the equation, we get

p(Ф=1Iy)=1 / {1+exp[(2y-3)/2α²]}

Similarly at Ф=1 and solving the equation, we get

p(Ф=2Iy)=1 / {1+exp[(2y-3)/2α²]}

Conclusion:

α² → ∞ ⇒p(ФIy) → p(Ф) = 1/2

α² → 0 ⇒ two cases

y > 3/2, α² → 0 ⇒p(Ф=2Iy) → 1

y < 3/2, α² → 0 ⇒p(Ф=1Iy) → 1

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Select the erie of tranformation that can move ΔABC onto ΔA'B'C'. A
Reflection over the line y=x. B
Reflection over the x-axi followed by a 90° clockwie rotation about the origin. C
Tranlation of (x12,y−4) followed rotation of 180o about the origin. D
Reflection over the x-axi followed by a tranlation (x12,y0)

Answers

The x and y coordinates switch places and are negated if you reflect over the line y = -x (the signs are changed). Point on the line y = x (y, x).

What is meant by Reflection?A reflection in mathematics is an isometric mapping from a Euclidean space to itself with a set of fixed points called the axis or plane of reflection. A figure's image created by a reflection is a mirror image of that figure in the axis or plane of reflection. A flip is the term for a reflection in geometry. The shape is mirrored in a reflection. The line of reflection is a line across which an image will reflect. Every point in a figure is said to reflect the other figure if and only if it is equally spaced from every corresponding point in the other figure.

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for each of the statements below, give a domain of discourse for which the statement is true, and a domain for which the statement is false. (a) ∀x∃y(y 2 x). (b) ∀x∀y(x < y → ∃z(x < z < y)

Answers

A domain of discourse for a domain integer statement is,

(a) True : x ≥ 0 and False x < 0

(b) True : x ≠ z ≠  y and False x ≠ y =  z

A zero, a positive natural number, or a negative integer with a minus sign is an integer. The negative numbers are the additive inverses of their positive counterparts.

An integer, also called a "round number" or “whole number,” is any positive or negative number that does not include decimal parts or fractions. For example, 3, -10, and 1,025 are all integers, but 2.76 (decimal), 1.5 (decimal), and 3 ½ (fraction) are not.

(a) ∀x∃y( [tex]y^{2}[/tex] ≥  x)

[tex]y^{2}[/tex] ≥ 0

When x ≥ 0 , [tex]y^{2}[/tex] = x is True.

When x < 0 , without  [tex]y^{2}[/tex] = x is True.

(b) ∀x∀y(x < y → ∃z(x < z < y)

When x ≠ z ≠  y ,  x < z < y is True.

When z = x or z = y , x < z < y is False.

When x = y and x = z , y = z

Therefore,

A domain of discourse for a domain integer statement is,

(a) True : x ≥ 0 and False x < 0

(b) True : x ≠ z ≠  y and False x ≠ y =  z

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Select all equations that have x = 9 as a solution.


Check all that are true.

x + 7 = 15

26 − x = 17

5x = 49

63 ÷ x = 7

23 + x = 32

Answers

The second one is right
The fourth one is right
And the fifth is right
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