PROOF Write a paragraph proof to prove that if PQ=4(x−3)+1, QR=x+10, and x=7, then PQ≅QR.

PROOF Write A Paragraph Proof To Prove That If PQ=4(x3)+1, QR=x+10, And X=7, Then PQQR.

Answers

Answer 1

The paragraph proof that is written to prove that if PQ=4(x−3)+1, QR=x+10, and x=7, then PQ≅QR is given below.

What is the paragraph proof?

The midpoint of a straight line is a point that divides then line into two equal portions.

Therefore to prove that PQ ≅ QR, the required steps are stated below:

A point on a given straight line which divide it into two equal parts is termed midpoint. So that any mathematical expression for the first fraction or part, is the same as that for the second fraction or part.

In the given question, point Q is the midpoint of line PR.

So that:

PR = PQ + QR     (Midpoint theorem)

Thus, PQ = QR     (Midpoint theorem)

But, PQ=4(x−3)+1,

QR=x+10, and x=7.

Substitute the value of x in both PQ and QR to have;

PQ = 4(x−3)+1      = 4(7 - 3) + 1      = 4*4 + 1PQ = 17  

(Midpoint theorem) QR = x+10      

= & + 10QR = 17  

(Midpoint theorem)

Therefore, PQ ≅ QR

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Related Questions

Alvin can jog 9 km in 0. 75 hr. And bicycle 12 km in 0. 5 hr. What is p? select the hint button to view a hint.

Answers

The value of p is 2 , when Alan’s jogging speed is 0.02% of his cycling speed.

Average speed is defined as the ratio of the total distance traveled by a body to the total time taken for the body to reach its destination.

According to the question,

Alvin can jog 9 kilometers in 0.75 hours, and he can cycle 12 kilometers in 0.5 hour.

Let the jogging speed be "x" and cycling speed be "y"

=> Average Speed = distance/time

jogging Speed : x  =  9 kilometers / 0.75 hours

=>  x = 9/0.75

=> x = 12

Therefore, Jogging speed = 12 kilometers per hour

Now,

Cycling speed : y = 12 kilometers / 0.5 hour

=> y = 24 kilometers per hour

Let " p" be the percent

=> 12p = 24

=> p = 24/12

Apply the division operation,

=> p = 2

Convert 2 to a percent.

x = 0.02%

Therefore, Alan’s running speed is 0.02% of his cycling speed.

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What is the solution to the equation 5 (x minus 6) = 2 (x 3)? x =

Answers

the solution to the equation is x=12

The distributive property is defined as

Let us now solve the equation.

5(x - 6) = 2(x + 3)

Using the distributive property, simplify the parentheses on both sides.

5(x - 6) = 2(x + 3)

5x - 30 = 2x + 6

The parenthesis was simplified. However, we have one x term on one side and another x term on the other.

5x - 30 - 2x = 2x + 6 - 2x

3x - 30 = 6

We only have an x term on one side of the equation now.

To begin, reverse the subtraction by adding 30 to either side of the equation.

To keep an equation balanced or true, we do the identical operation on both sides.

3x - 30 + 30 = 6 + 30

3x = 36

We're getting close to an answer. Only one more step.

The x term is multiplied by 3.

We can undo the multiplication operation by dividing both sides by 3.

3x / 3 = 36 / 3

x = 12

So, x is equal to 12.

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Reese's monthly bank statement says she has a balance of $228.32, but Reese's check register says that her balance is $248.32. Which of the following are still outstanding?

I. A $48.16 deposit from Reece's mom

II. ​​​​​​​A $116.16 deposit from Reece's work

III. ​​​​​​​ $28.16 check to the nail salon

IV. ​​​​​​​​​​​​​​A $126.16 check to the hair salon



I and II

I and III

II and III

Answers

Answer:

l and lll

Step-by-step explanation:

228.32 + 48.16 - 28.16 = 248.32

Which numbers are less than –8/3? Select all that apply.

Answers

The number which is less than that of -2.67 are -2.8, -2.9, -3.0.

What is a fraction?

If the numerator is bigger, it is referred to as an improper fraction and can also be expressed as a mixed number, which is a whole-number quotient with a proper-fraction remainder.

Any fraction can be expressed in decimal form by dividing it by its denominator. One or more digits may continue to repeat indefinitely or the result may come to a stop at some point.

Which numbers are less than –8/3 = -2.67

So given in the option which is less than -2.67

Numberless -2.7 are

-2.8, -2.9, -3.0.

Hence the number is less than that of -2.67 are -2.8, -2.9, -3.0.

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Complete Question.
Which numbers are less than-8/3 Select all that apply.
A. -2.6 (repeating)
B.-2.76
C.-2 1/4
D. -11/4
E. -2

a line is graphed on the coordinate plane write the equation of a line in slope-intercept form. Explain how you found the slope and the y- intercept

Answers

The slope (m) of the line that passes through the points (0, 4) and (8, 0) is -1/2 and the y-Intercept is (0, 4).  

What is the slop of the line?

A line's steepness can be determined by looking at its slope. Slope is calculated mathematically as "rise over run" (change in y divided by change in x).

We have,

The line that passes through the points (0, 4) and (8, 0)

Slop (m) = ?

The slope formula is:

m =  (y₂-y₁) ÷ (x₂-x₁)

so here,

m = (0 - 4) ÷ (8 - 0)

m = -4 ÷ 8

m = -1/2

Hence, the slope (m) of the line that passes through the points (0, 4) and (8, 0) is -1/2 and the y-Intercept is (0, 4).  

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To indirectly measure the distance across a river, Carson stands on one side of the river and uses sight-lines to a landmark on the opposite bank. Carson draws the diagram below to show the lengths and angles that he measured. Find P R PR, the distance across the river. Round your answer to the nearest foot.

Answers

Using the given triangle shown in the image, we know that the PR, the distance across the river is 198.94ft.

What is a triangle?

A polygon with three edges and three vertices is called a triangle. It is one of the fundamental geometric shapes.

ABC refers to a triangle with vertices A, B, and C.

In Euclidean geometry, any three points that are not collinear produce a distinct triangle and a distinct plane.

So, the triangles PRE and POC appear to be comparable triangles in the diagram.

Utilizing the similarity theorem:

PR/RE = PR+RO/OC

x/135 = (x+140)/230

By cross-multiply:
230x = 135(x+ 140)

230x = 135x + 18,900

230x - 135x = 18,900

95x = 18900

x =18900/95

x = 198.94

Therefore, using the given triangle shown in the image, we know that the PR, the distance across the river is 198.94ft.

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Correct question:
To indirectly measure the distance across a river, Nolan stands on one side of the river and uses sight lines to a landmark on the opposite bank. Nolan draws the diagram below to show the lengths and angles that he measured. Find PRPR, the distance across the river. Round your answer to the nearest foot.

What is the absolute value of 3/2?
what is the value of 32^4?
what is the value of 32 to the fourth power?
what is the value of 42?

Answers

The value of all the given expression are as follow:

a. Absolute value of -3 / 2 is equal to 3 /2.

b. The value of 32^4 is equal to 1048576.

c. The value ( 32 )^ 1/4 power is equal to (2)^5/4.

d. Value of 4^2 is 16

As given in the question,

Simplification of the given expressions are :

a. The absolute value of ( -3 / 2 )is

| - 3 / 2 | = ( 3/2 )

b. The value of the expression 32^4  is:

32^4

= 32 × 32 × 32 × 32

=  1048576

c. The value of the given expression ( 32 ) ^ 1/4 :

( 32 ) ^ 1/4

= ( 2⁵) ^ 1/4

= 2^(5/4)

d. Value of 4^2 is

4^2

= 4 × 4

= 16

Therefore, the value of the given expression is given by :

a. Absolute value of -3 / 2 is equal to 3 /2.

b. The value of 32^4 is equal to 1048576.

c. The value ( 32 )^ 1/4 power is equal to (2)^5/4.

d. Value of 4^2 is 16

The complete question is:

What is the absolute value of -3/2 ?

what is the value of 32^4?

what is the value of 32 to the one - fourth power?

what is the value of 4^2?

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The length of a rectangular parking lot is 16 yards greater than 3 times its width, x, in yards. Enter the function f(x) that describes the area, in square yards, as a function of the width, x.
f(x) = _____

Answers

f(x) = Area = (length)(width)

width = x

The length is 16 yards greater than 3 times x

length = 3x+16

f(x) = (3x+16)(x) = 3x^2 + 16x

Answer:

f(x) = 3x² + 16x

Step-by-step explanation:

We have been given that -- The length of a rectangular parking lot is 16 yards greater than 3 times its width, x, in yards

Length of parking lot is 16 + 3x

Width of parking lot is x

We have to write the function f(x) that describes the area, in square yards, as a function of the width, x

Area of rectangle is Length × width

[tex] \sf Area = f(x) [/tex]

put value of length and width here,

[tex] \sf f(x) = (16 + 3x)(x )[/tex]

[tex] \sf f(x) = 3x^2 + 16x [/tex]

Therefore, f(x) = 3x² + 16x

Is triangle ABC a dilation of triangle def?

Answers

The triangle ABC is a Dilation of triangle DEF.

A dilation is a transformation that produces an image that is the same shape as the original one but in a different size. Each point is stretched outwards from the center point D by multiplying distances by the scale factor. So, the shape of triangles ABC and DEF are the same.

Since they have similar shapes, their angles will be the same. The largest angle measured in triangle DEF = The largest angle measured in triangle ABC.

Dilation can reduce the shape of an object. The dilation can also enlarge a shape proportionally resulting in a giant monster version of itself.

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Seven friends shared a two-thirds pound bag of pistachios. If each person had the same amount of nuts, how many pounds did each person eat?.

Answers

Each person ate 21/2 pounds of nut

First of all, we have 7 friends who are going to share 2/3 pound bag of pistachios

This will mean that we will have to divide equally the two-thirds-pound bag of pistachios among the seven people that we have so that we get the share that each person will get

There are 7 friends that share a 2/3-pound bag.

The first step will be: 7÷2/3

7÷0.6666

we will get 21/2 or 10.5

This will imply or mean that each of the friends will get an equal share of 21/2 of the  a two-thirds pound bag of pistachios

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Helppp mememmemm plese it is do Tm

Answers

Answer: the same line

Step-by-step explanation:

Let us transform the equation:

[tex]\displaystyle\\y=\frac{4}{3} x+1\\\\[/tex]

Multiply both parts of the equation by 3:

[tex]\displaystyle\\3y=\frac{4}{3}(3) x+1(3)\\\\3y=4x+3\\\\3y-4x=4x+3-4x\\\\3y-4x=3[/tex]

Simplify:
-x²+2-1+ 6x² - 4x²

Answers

Answer: x^2 + 1

Step-by-step explanation:

-x²+2-1+ 6x² - 4x²

We combine the x^2 and the numbers and we have the equation

x^2 + 1

Flo had 3 packages of paper that each had p pieces of paper. After she gives away 6 pieces of paper, she has 23 pieces of paper left. Which equation can be used to determine how many pieces of paper are in each package? * 10 points A. 3p + 6 = 23 B. 23 = 3p – 6 C. 6 – 3p = 23 D. 6p + 23 = 3p

Answers

Answer:

D

Step-by-step explanation:

Jesus borrowed $1000 for 1 week at an APR of 350%. How much interest did he have to pay at
the end of the week? (There are 52 weeks in a year)
$52.70
$67.31
$78.42
$86.21

Answers

If Jesus borrowed $1,000 for 1 week at an APR of 350%, the interest he has to pay at the end of the week is B. $67.31.

What is the interest?

The interest represents the cost of borrowing.

The interest is computed as the principal multiplied by the annual percentage rate (APR) and time (period).

The interest formula used here is the simple interest instead of the compound interest, which charges interest on accumulated interest and the principal every period.

Principal borrowed for 1 week = $1,000

Annual percentage rate (APR) = 350%

Loan period = 1 week

52 weeks = 1 year

Interest = Principal x APR x Time

= $1,000 x 350% x 1/52

= $67.31.

Thus, the interest that the borrower pays for $1,000 for 1 week at 350% APR is not $52.70, $78.42, or $86.21, but $67.31.

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jar a has exactly four red buttons and eight blue buttons. carla then removes the same number of red buttons as blue buttons from jar a and places them in an empty jar b. jar a now has $\frac{2}{3}$ of its original number of buttons. if carla were now to randomly choose a button from jar a and a button from jar b, what is the probability that the two chosen buttons will both be red? express your answer as a common fraction.

Answers

Probability of choosing two buttons each from the Jar a and Jar b is equal to ( 3/ 4).

As given in the question,

Number of red buttons in Jar a = 4

Number of blue buttons in Jar a = 8

Total buttons in Jar a = 12

After removing equal number of red and blue buttons from Jar a

Number of buttons left in Jar a = ( 2/ 3) × 12

                                                   = 8 buttons

total number of buttons in Jar b = 4

Both the buttons are equal

Number of red buttons in Jar b = 2

Number of blue buttons in Jar b = 2

Probability of choosing a red button from each Jar

= (²C₁ / ⁸C₁) + ( ²C₁ / ⁴C₁ )

= ( 2 / 8) + ( 2 / 4)

= ( 1/ 4) + ( 1/ 2)

= 3 / 4

Therefore, the probability of getting total two red buttons one from each Jar is equal to ( 3 /4).

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huck finn is interested in the average length of catfish in the mississippi river bordering st. louis. to collect his sample, huck breaks the river into 5 regions and catches 8 catfish from each region. what method did huck use to select his sample?

Answers

The method that he chooses to select his sample is Stratified Sampling.

In Stratified, the population is divided into subpopulations and then the same sampling is applied to each region or subpopulation.

The ability to obtain a sample population that most accurately represents the overall population being investigated while ensuring that each subgroup of interest is represented makes stratified random sampling one popular technique employed by researchers. Researchers use stratified sampling to ensure that specific subgroups are represented in the sample. It also helps in the precise evaluation of each group's characteristics. This technique is often used in surveys to better understand disparities between subpopulations.

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true or false: a confidence interval is the rejection region of a two-sided test. group of answer choices true false

Answers

This statement is False as the confidence interval is also known as acceptance region, is a set of values for the test statistic for which the null hypothesis is accepted(two tailed).

Given that,

The statement is a confidence interval is the rejection region of a two-sided test.

We have to say if the statement is true or false.

We know that,

In statistics, a confidence interval describes the probability that a population parameter would fall between a set of values for a given percentage of the time. Confidence ranges that include 95% or 99% of predicted observations are frequently used by analysts.

Therefore, This statement is False as the confidence interval is also known as acceptance region, is a set of values for the test statistic for which the null hypothesis is accepted(two tailed).

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A rectangular solid has width w, a length of 7 more than the width, and a height that is equivalent to 15 decreased by 3 times the width. Express the volume in terms of the width, w. Then find the maximum volume to the nearest whole number cubic unit.

Answers

The maximum volume of the rectangular solid in cubic units in terms of the width, w is [tex]-3w^{3}-6w^{2}+105w[/tex].

Information from the question is known as follows :

width = w

length = w+7

height = 15-3w

The maximum volume of a rectangular solid can be found by the formula :

Volume = length x width x height

Volume  = (w+7) x w x (15-3w)

Volume  = [tex](w+7)(15w-3w^{2} )[/tex]

Volume  = [tex]15w^{2}-3w^{3} +105w-21w^{2}[/tex]

Volume  = [tex]-3w^{3}-6w^{2}+105w[/tex]

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In which of the options below will the number 10 correctly fill in the blank? Select all that apply. A) 3 : 5 = 6 : ___ B) 2 : ___ = 4 : 16 C) 1 : ___ = 4 : 40 D) 5 : 8 = ___ : 24

Answers

Answer: i think c and a

Step-by-step explanation:

Use completing the square to rewrite the given function in vertex form. Determine whether the vertex is a maximum or minimum value. Select the TWO correct answers.

y = x2 + 10x + 15
A The vertex is a maximum value at point (5, 10)The vertex is a maximum value at point (5, 10)
B The vertex form is y = (x+5)2 − 10.The vertex form is y = ( x + 5 ) 2 − 10.
C The vertex form is y = (x−5)2 + 10.The vertex form is y = ( x − 5 ) 2 + 10.
D The vertex form is y = (x+5)2 + 10The vertex form is y = ( x + 5 ) 2 + 10
E The vertex is a minimum value at point (−5, −10)

Answers

The function x^2 +10x +15 in vertex form is (x+5)^2 - 10 and the vertex is a minimum at (-5, -10)

What is the vertex of a curve?

The vertex of a parabola is a point at which the parabola makes its sharpest turn. A parabolic function has either a maximum value (if it is of the shape '∩') or a minimum value (if it is of the shape 'U"). The vertex of a parabola is also the point of intersection of the parabola and its axis of symmetry.

y = x^2 + 10x +15

making x^2 + 10x +15 a perfect square expression we square the half of the coefficient of x on both sides which is (5)^2

y + (5)^2 = x^2 + 10x + (5)^2 + 15

y + 25 = x^2 + 10x + (5)^2 + 15

x^2 + 10x + (5)^2  can be written as (x+5)^2 since iti is now a perfect square expression

y + 25 = (x+5)^2 + 15

y = (x+5)^2 + 15 - 25

y = (x+5)^2 -10

Equation of parabola in vertex form is  y = a (x - h)2 + k

where k is the minimum or maximum point of vertex and h is the x coordinate of vertex.

comparing both equations, the coordinate of vertex (h, k) is (-5, -10) which is a minimum point.

In conclusion the vertex is a minimum at (-5, -10) and the equation in vertex form is  (x+5)^2 -10

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Ana is a teacher who plays a review game with her class. The game involves writing each student's name on an identical slip of paper and selecting students at random. Here's the makeup of her class: grade 9^\text{th}9 th 9, start superscript, start text, t, h, end text, end superscript 10^\text{th}10 th 10, start superscript, start text, t, h, end text, end superscript 11^\text{th}11 th 11, start superscript, start text, t, h, end text, end superscript number of students 121212 999 777 suppose that ana picks a name, replaces it, and picks a name again. What is the probability that neither of the students selected are 9^\text{th}9 th 9, start superscript, start text, t, h, end text, end superscript graders? round your answer to two decimal places.

Answers

Ana is a teacher who plays review games with the class. If Ana picks a name, replaces it, and picks a name again there is a 0.33 percent chance that none of the students is in ninth grade.

Probability is used to find out the number of chances that an event occurs.

Number of students that are not in nine grade

N9 = 9 + 7

N9 = 16

The total number of students are

Total = 12 + 9 + 7

Total = 28

The probability of neither of a student in nine grade

P = P (N9) x P (N9)

P = 16/28 x 16/28

P = 256/784

divide and approximate

P = 0.33

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Joe is on a sidewalk 100ft away from the tree ,jim is on a perpendicular sidewalk 70ft from the tree how far away are they from earth other

Answers

Answer:

30 ft

Step-by-step explanation:

Answer:

122 ft

Step-by-step explanation:

The 100 ft and the 70 ft are two legs of a right triangle....their distance apart is the hypotenuse of this triangle ....use Pythagorean theorem

d^2 = 100^2 + 70 ^2

  d = 122 ft

Jeff spent $50 on gifts for his tamily. The first 2 items cost a total of $15 and then he bought 2 more for a total of $20. How many additional gifts did Jeff buy if their average cost was $10 each?

Answers

The number of additional gifts Jeff can buy with the remaining cost is 1.

What is the arithmetic operator?

Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,

As per the given,

Total cost = $15 + $20 = $35

Total spent = $50

Remaining = $50 - $35 = $15

Since one gift cost $10

Thus, 15/10 = 1.5 since the number of gifts will be the whole number so it will be round to bottom 1 gift.

Hence "With the money still available, Jeff can purchase 1 more present".

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2x + y = 5
x - 2y = -15

Answers

Answer: (`A) 3x-y-3=0 55. (B) x+3y-11=0 (C) 3x + y-9=0 (D) x-3y +7=0 `

Step-by-step explanation: Straight lines `2x + y = 5` and `x-2y = 3` intersect at point `A`. Points `B` and `C` are chosen on these two lines such that `AB = AC`. Then the equation of a line `BC` passing through the point `(2.3)` is: (`A) 3x-y-3=0 55. (B) x+3y-11=0 (C) 3x + y-9=0 (D) x-3y +7=0 `

I hope this helps :)

Only 30% of teams beat The Great Escape Challenge. If 15 teams beat the challenge,
how many teams have played The Great Escape Challenge?
conte the problem

Answers

Answer: 50 teams

Step-by-step explanation:

       We will set up a proportion to solve.

[tex]\displaystyle \frac{30\%}{15\;\;\text{teams}} =\frac{100\%}{x\;\;\text{teams}}[/tex]

       A percent divided by 100 becomes a decimal.

[tex]\displaystyle \frac{0.3}{15\;\;\text{teams}} =\frac{1}{x\;\;\text{teams}}[/tex]

       Next, we will cross-multiply:

0.3x = 15

       Lastly, we will divide.

x = 50

Consider a rectangle that is inscribed with its base on the x-axis and its upper corners on the parabola y=c−x2, with c

Answers

The area of a rectangle that is inscribed with its base on the x-axis and its upper corners on the parabola   [tex]y=c-x^2[/tex]   is   [tex]4(\frac{c}{3})^\frac{3}{2}[/tex].

A rectangle has a width  [tex]2x[/tex] ⇒ w= [tex]2x[/tex]

height of the rectangle is   [tex]c-x^2[/tex] ⇒    [tex]y=c-x^2[/tex]

Area=width multiplied by the height

                                       ⇒[tex]area=width*height[/tex]

we maximize Area by setting   [tex]\frac{dA}{dx} =0[/tex] .

                                     [tex]\frac{d(2c-2x^3)}{dx} =0\\\\2c-6x^2=0\\\\x^2=\frac{1}{3}c\\ \\x=\sqrt{\frac{c}{3} }[/tex]

substituting back the value of x in the formula of the area we get  

                                  [tex]area=2\sqrt{\frac{c}{3} } *2\frac{c}{3} \\\\area=4(\frac{c}{3})^\frac{3}{2}[/tex]

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A parabola has a y intercept of 5 and contains the points (2,-3)
and (-1,12). What are the coordinates of the vertex?

Answers

Answer:

Here

Step-by-step explanation:

The vertex of the parabola is at (0.5, 8.5).

Write a reflection rule for each triangle and
its image.
a. J(1, 0), K(-5, 2), L(4, -4) and
J'(-9, 0), K'(-3, 2), L'(-12, -4)

Answers

The rule of reflection for the triangle △JKL to △J'K'L' is x = -4.

What is a triangle?

A polygon with three edges and three vertices is called a triangle. It is one of the fundamental geometric shapes. Triangle ABC is the designation for a triangle with vertices A, B, and C. In Euclidean geometry, any three points that are not collinear produce a distinct triangle and a distinct plane.

Given that the vertices of △JKL are J(1, 0), K(-5, 2), L(4, -4).

The vertices of △J'K'L' are J'(-9, 0), K'(-3, 2), L'(-12, -4).

The formula of midpoint of (x₁, y₁) and (x₂, y₂) is

((x₁+x₂)/2,  (y₁+y₂)/2)

The midpoint of J(1, 0) and J'(-9, 0) is ((1+(-9)/2,(0+0)/2) = (-8/2,0) = (-4,0)

The midpoint of K(-5, 2) and K'(-3, 2) is ((-5+(-3)/2,(2+2)/2) = (-8/2,4/2) = (-4,2)

The midpoint of L(4, -4) and L'(-12, -4) is ((4+(-12)/2,(-4+(-4))/2) = (-8/2,-8/2) = (-4,-4)

Thus the x-coordinate of the midpoint is the same.

Thus the line of reflection is x = -4.

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Juan has a net monthly income of $4800 and is willing to spend 11% of that income on groceries, and 8% on entertainment. How much money does he devote to each category?

Answers

Answer:

11%=528

8%=384

Step-by-step explanation:

4800×11÷100

4800×8÷100

(pls help) Determain if each function is liner or non-liner.
A- y=6/x-2
B- y=x
C- y= x/2-3
D- 3x+y=12
E- y=3x[tex]x^{3}[/tex]+5

Answers

A. Not linear

B. Linear

C. Linear

D. Linear

E. Doesn’t make sense
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