Select all of the transformations that always maintain a shape's congruency.

A) A reflection
B) Adilation
C) A reflection and then a dilation
D) A rotation then a translation
E) A translation then a reflection

Answers

Answer 1
Reflection and a rotation then translation/A and D

Related Questions

Substitute the length of the sides (7 in, 25in n)
into the Pythagorean theorem. Then, find the length of the missing side m
(Please with step by step answer)

Answers

Answer:

with 2 sides, we can assume that the 25 inch side is the hypotenuse.

7^2 + 25^2 = 49 + 625 = 674

674 is NOT a perfect square so we'll make the 25 side as the hypotenuse.

7^2 +n^2  = 625

n^2 = 625 - 49

n^2 = 576

square root (576) = 24

So the 3 sides are

7   24   and 25

Step-by-step explanation:

PLEASE HELP! I left to go eat and when I came back I forgot what I was doing.
The image shown is of two sets of parallel lines.
The m∠ 13 = 29x - 2 and the m∠ 9 = 27x + 6
What is the m∠ 12?

Answers

Answer:

x=4

m<12 = 66

Step-by-step explanation:

Answer:

x = 4

m∠12 = 66

m∠13 and m∠12 are linear pairs (supplementry angles)

Step-by-step explanation:

m∠9 ≈ m∠15 (Vertical angle)

m∠15 ≈ m∠13 (Corresponding angle)

m∠9 ≈ m∠13

29x - 2 = 27x + 6

2x - 2 = 6

2x = 8

x = 4

m∠13 = 29(4) - 2

m∠13 = 114

m∠13 + m∠12 = 180

180 - m∠13 = m∠12

180 - 114 = 66

m∠12 = 66

The jazz band has m(variable) members. To raise money for a tour, each member sold 12 raffle tickets. Write an expression that shows the number of raffle tickets sold. ​

Answers

Answer: 12m

Step-by-step explanation:

Each member sells 12 tickets, so you would have to multiply the amount of tickets(12) by the amount of members(m).

Answer:  12m

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

Explanation:

1 person sells 12*1 = 12 tickets

2 people sell 12*2 = 24 tickets

3 people sell 12*3 = 36 tickets

....

m people sell 12*m = 12m tickets

m is a placeholder for a positive whole number (1,2,3,...)


What is the area of this tile?
3 in.
3 in.

Answers

9in^2. You times 3 by 3 to find the area

Answer:

9 in. i think

Step-by-step explanation:

Please help me.

In a group of 45 students at a school, all students must study at least one science. Physics is compulsory, but students may also opt to study chemistry or biology or both. 9 students take all three sciences. 24 take both physics and biology (with or without chemistry). 12 students take only physics. How many are studying chemistry and physics but not biology?

Answers

Answer:

9 students

Step-by-step explanation:

Let x be the number of students taking only Physics and Chemistry

Number of students :

All 3 sciences = 9

Only physics = 12

Both Physics and Biology( without Chem ) = 24 -9 = 15

15+ 9 + 12+x = 45 , since Physics is compulsory

36 + x = 45

x = 45 - 36

x = 9

Hope it helps :)

Answer:

9

Step-by-step explanation:

Point H is on the line segment GI. Given HI=6x, GH=x^2+5x and GI 7x+21. Find the values of x and determine the length of HI.

Answers

Answer:

x=3

HI=18

Step-by-step explanation:

Equations

Suppose a segment with endpoints G, I. Somewhere in between lies point H, in such a way that:

GI = GH + HI

Every segment is given as an expression with variable x:

[tex]HI=6x[/tex]

[tex]GH=x^2+5x[/tex]

[tex]GI=7x+21[/tex]

Substituting:

[tex]7x+21=x^2+5x+6x[/tex]

Moving everything to the right side:

[tex]0=x^2+5x+6x-7x-21[/tex]

Swapping sides and simplifying:

[tex]x^2+4x-21=0[/tex]

Factoring:

[tex](x+7)(x-3)=0[/tex]

Solving, we have two possible solutions:

x=-7, x=3

The negative solution is discarded because it would result in negative lengths. Thus the solution is

x=3

Determine the length of HI:

HI=6x=6*3=18

HI=18

Line p is parallel to line q. Parallel lines p and q are crossed by lines a and b to form 2 triangles. At parallel line p, angle 4 is formed by line b and angle 5 is formed by line a. Angle 6 is the third angle. At parallel line q, angle 3 is formed by line 3 and angle 2 is formed by line b. Angle 1 is the third angle. Which set of statements about the angles is true? Angle 1 is congruent to angle 6, angle 5 is congruent to angle 4, angle 3 is congruent to angle 2 Angle 2 is congruent to angle 4, angle 3 is congruent to angle 6, angle 1 is congruent to angle 5 Angle 3 is congruent to angle 6, angle 1 is congruent to angle 2, angle 5 is congruent to angle 4 Angle 6 is congruent to angle 1, angle 5 is congruent to angle 3, angle 4 is congruent to angle 2

Answers

The set of statements about the angles are: angle 1 is congruent to angle 4 is congruent to angle 5 is congruent to angle 8 and angles 2 is congruent to angle 3 is congruent to angle 6 is congruent to angle 7

How to determine the true statements

A pair of parallel lines cut through by a transversal would form set of congruent angles

The parallel lines are given as:

Lines p and line q

From the complete question (see attachment for image), we have the following congruent angles:

Angles 1, 4, 5 and 8Angles 2, 3, 6 and 7

Hence, the set of statements about the angles are: angle 1 is congruent to angle 4 is congruent to angle 5 is congruent to angle 8 and angles 2 is congruent to angle 3 is congruent to angle 6 is congruent to angle 7

Read more about parallel lines and transversal at:

https://brainly.com/question/19670823

Answer:

It´s D. I hope I answered the correst question

Step-by-step explanation:

Rewrite as a simplified fraction.
2.37 = ?

Answers

Answer:

[tex]\frac{237}{100}[/tex]

Step-by-step explanation:

Hi there !

2.37 = 237/100

Good luck !

Well 2.37 as a fraction is just 237/100 the only simplified version over that would probably be 2 37/100 since I can’t really write that out I’ll just say the 2 goes next to 37/100.

Rachel and her cousin, Lena, live in different cities that are about 100 miles apart. On a map, the two cities measure
5 inches apart. What is the scale factor used for the map?

Answers

Answer:

Step-by-step explanation:

On her map 1 inch is equal to 20 miles.

5x=100

divide both sides by 5

x=20

please help!!!!! thank you!!! any help would be appreciated!!

Answers

Answer:

I would say c. you welcome for my so called help

A number line graph is shown:
-8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8
Based on the graph, which inequality is correct for a number that is to the right of -4?
0-2 <-4
O-3>-4
0 1 <-4
-5 >-4

Answers

Answer:

1<-4

Step-by-step explanation:

Answer:

-3 > -4 i believe i hope this helps!!

Step-by-step explanation:

Question 10 (5 points)
(02.05 LC)
What number is 80% of 90? (5 points)
Plz help

Answers

80% of 90 is 72
80%=.8
.8 x 90
72

What is the value of x in the equation x^ 3 = 8 /216

Answers

Answer:

x=1/3

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

8/126 = 1/27. 1/27 is a cube because 1/3 can be multiplied by itself three times to get it.

i need help on this one too​

Answers

Answer:

x equals 3

Step-by-step explanation:

hope this helps

CAN SOMEONE HELP ME WITH THIS!!! IT IS TIMED

Answers

Answer: 2

Step-by-step explanation: Because 2 makes the denominator 0, which makes the entire thing undefined

How would you simplify 3, 999, 999^0

Answers

Answer:

4,000,000^0 your welcone

Please find the product! Thank you!
(x+5) (x+8)

Answers

Answer:

40x?

Step-by-step explanation:

Answer:

x^2+40

Step-by-step explanation:

The red dot is located between 12 and 13. The red dot is about half way between 12 and 13, but a little below the half way point, so the red dot represents a little below half way between the two square roots. Since the square root of 144 is equal to 12 and the square root of 169 is equal to 13, then the red dot is located between the two square roots. By extension, to the nearest integer, the approximate value of the dot will be a little below half way between and , which is about the square root of .

Answers

Answer:

The answer is "156".

Step-by-step explanation:

According to the question, the 144 square root equals 12. The 169 square root equals 13, and by extending the estimated price of blackness, only at the nearest entry, has been a little or less halfway between both the 144 square root and the 169 square root estimated, at 156 square root, that's why 156 is the correct answer.

Select the correct answers.
A pair of parallel lines is cut by another pair of parallel lines as shown in the figure. Which angles are congruent to angle K?
R
D
N
А
P
E
M
H
F
G
K
O A angles P, Q, and R
OB. angles M, E, and
OC angles G, A, and B
OD. angles D, E, and
E angles M, N, and P

Answers

Answer:it is c

Step-by-step explanation:

Answer:b

Step-by-step explanation:

If anyone can help me please with the this problem (picture above)

Answers

Answer:

6x-3=9

Step-by-step explanation:

i dont really get what it means by set up an equation but heres what i know-

36 is the perimeter so divide it by 4 to get the length of each side-

36/4=9

now you know that each side is 9, so 6x-3=9

when you solve that, x=2

problem work:
4(6x-3)= 36
24x-12=36
+12=+12
24x=48
24x/24=48/24
x=2

Check:
6x-3=36
4(6(2)-3)=36
4(12-3)=36
48-12=36
36=36

AngleFBC and AngleCBG are supplements, AngleDBG and AngleDBF are supplements, and AngleCBG Is-congruent-to AngleDBF. 4 lines are shown. A horizontal line with points F, B, G intersects a vertical line with points A, B, E at point B and forms a right angle. Another diagonal line with points D, B, C intersects the other 2 lines at point B between angle F B E and angle A B G. A fourth line intersects 3 lines at points A, C, G. By the congruent supplements theorem, what can you conclude? AngleCBG Is-congruent-to AngleDBG AngleFBC Is-congruent-to AngleDBG AngleCBG is supplementary to AngleDBF. AngleFBC is supplementary to AngleDBG.

Answers

Answer:

b

Step-by-step explanation:

Where is the answer to the expression 3 − 7 located on a horizontal number line?

Answers

Answer:

4 units to the left of 3 7 units to the left of 3 4 units to the right of 3 7 units to the right of 3

Step-by-step explanation:

Answer:

-4

Step-by-step explanation:

Add 3 units to the right

Subtract 7 units to the left

Total = 4 units to the left

Or you can say -4

I hope this helps you :)

??????????????????????????????

Answers

Answer:

For 6 chairs, 72 screws and for 9 chairs, 108 screws.

Step-by-step explanation:

So, for every 2 chairs, he needs 24 screws.

By Unitary Method,

We get screws needed for one chair, that is, 24/2 = 12 screws for one chair.

So, for 6 chairs,

6 × 12 = 72 screws.

Similarly, for 9 chairs,

9 × 12 = 108 screws.

Answer:

The ratios to this would be:

[tex]\left[\begin{array}{ccc}2&24\\6&72\\9&108\end{array}\right][/tex]

Step-by-step explanation:

Ratios are similar to fractions, in some ways, ratios are to show the relation between two numbers, such like a proportion:

For example:

4:3

or the ratio of men' jobs to women's' is 8 to 1 (8:1)

In this case, it is said that:

Gary needs 24 screws for every 2 chairs.

The ratio of this is 24: 2

Also meaning:

[tex]\frac{24}{2}[/tex]

and [tex]2\sqrt{24}[/tex], the quotient is = 13

Now we multiply 12 to '6' and '9'

You will get:

12(6) = 72

12(9) = 108

This will be your answer.

28+7+2=x+1

Solve equation

Answers

Answer:

x= 36

Step-by-step explanation:

28+7+2= 37

37= x+1

37-1= 36

x= 36

Answer:

x = 36

Step-by-step explanation:

28 + 7 + 2 = x + 1

x + 1 = 28 + 7 + 2

x + 1 = 37

x = 37 - 1

x = 36

I hope this helped!

Can someone please help me with this question:)

Answers

Answer:

x = 12 and y = 24 Can I get brainiiest

Step-by-step explanation:

We know (3x + 34) and (2x + 46) are vertical to each other so they equal the same measure. We will solve it like this.

3x + 34 = 2x + 46 (subtract 34 on each side)

3x = 2x + 12 (subtract 2x on both sides)

x = 12

Now plug in

3(12) + 34 = 2(12) + 46

36 + 34 = 24 + 46

70 = 70

Now all you have to do is do the other pair of angle

4y + 14 + 70 = 180 (we are using what we already know about 70)

(collect like terms)

4y + 84 = 180 (subtract 84 on both sides)

4y = 76 (divide by 4)

y = 24

(plug in)

4(24) + 14 = 6(24) - 34

96 + 14 = 144 - 34

110 = 110

To determine the number of deer in a forest, a forest ranger tags 280 and releases them back into the forest. Later, 405 deer are caught, out of which 45 of them are tagged. About how many deer are in the forest?

Answers

Answer:

640

Step-by-step explanation:

405-45= 360

360+280=640

Answer:

2520 deer

Step-by-step explanation:

Given

Tagged deer = 280Caught deer = 405Tagged among caught = 45

The ratio of the tagged deer vs total

45 ⇔ 405280 ⇔ x

Solving by cross-multiplication

45x = 405*280x = 405*280/45x = 2520

So there are about 2520 deer in the forest

Help pleaseeee I don’t understand it’s for a test and it’s timing me

Answers

Answer:

-2: 6^2

-1: 6

2: 1/36

Step-by-step explanation:

The weight of a person in pounds.
1293

Answers

Answer:

if 1293 is ounces, 80.8125 would be lbs !!

Step-by-step explanation:

Answer:

h

Step-by-step explanation:

5/6 divided by 3 in simplest form. please help. quick.

Answers

The Answer is:

5/18

Step-by-step explanation:

5/6 ÷ 3 = 5/18

the answer is 5/18 for that question

ASAP! I'LL GIVE YOU 10 POINTS! Can someone help me with my math? Please, I am begging you! It was due yesterday and I'm confused.
1. A line goes through the points (0,7) and (1,9). Write the following equation forms:
Point-Slope Form (using the point (1,9):
Slope-Intercept Form:
Standard Form:
2. Write the following equation forms given that f(−3)=4 and f(−1)=−4 are true of the line: Slope-Intercept Form:
Standard Form:

Answers

So the options are in y=mx+b aka slope intercept form, so since the slope is 1/2, and passes through (2,-3) the equation will be y=1/2x+2. So the answer is y = one-half x + 2.

Point slope form equation: y-y1=m(x-x1)
Where m=slope
Y1 is any y value from a point on the graph
X1 any x value from the same point on the graph

The first thing to do is find the slope

M= (9-7)/(1-0)=2/1=2

Next is to sun in values

the point given is (1,9)

So we put 9 in place of y1 and 1 in place of x1

So the line in point slope form is

Y-9=2(x-1)

Y intercept formula: y=mx+b

The only new letter is b which is the y intercept value (0,b)

The y intercept is the point where x is 0 which the problem says is (0,7)

So, keeping the same slope

The answer is

Y=2x+7

Standard form: Ax+By=C

Where A,B, and C are integers (can’t be fractions)

If you reorder the slope intercept form

You get

-2x+y=7

You have to flip the signs because a needs to be positive

So the answer is

2x-y=-7

2)

When you see something like f(-3)=4
That is saying when x is equal to -3, the whole equation is equal to 4

So f(x)=n

So when x is -3, y is 4 and when x is -1, y is -4

M=(4+4)/(-3+1)=8/-2=-4

Sub in points to find b

4=-4(-3)+b
4=12+b
b=-8

So,

Y=-4x-8

Std form

Move -4x to the left with addition to get

4x+y=-8

Hope that helped!
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