Help worth 100 points

Help Worth 100 Points

Answers

Answer 1
A=(0,9)A'=(0,2)

Dilation scale factor:-

y/x=kk=2/9

Hence he found the opposite scale factor which is for enlargement .

Option D
Answer 2

Answer:

D

Step-by-step explanation:

To find the scale factor of dilation, measure the distance between one of the points and the center of dilation for both the original shape and the dilated shape, then compare.

Distance from (0, 0) to point A = 9 units

Distance from (0, 0) to point A' = 2 units

Let x be the scale factor of dilation:

⇒ 9x = 2

⇒ x = 2/9

So the scale factor of dilation that reduces ΔABC to ΔA'B'C' is [tex]\sf \frac29[/tex].

Therefore, the mistake the friend made was finding the scale factor that enlarges ΔA'B'C' to ΔABC


Related Questions

On a six-sided die, each side has a number between 1 and 6. What is the probability of throwing a 3 or a 4?

Answers

scientifically proven, they answer is ur mom.

What is an equation of the line that passes through the points (-5, -6) and (5, 6)?

Answers

Answer:

It would be -5 + -6 = 65

Step-by-step explanation:

Add it up to together by removing the -

g(x) = 3/(x - 2) - 1



Find the inverse function

Answers

Answer:

2

Step-by-step explanation:

g(3)=3/(3-2)-1

3/1-1

3-1

2

please hurry! will give brainliest

Answers

Answer:

Step-by-step explanation:

If we think about a right triangle, we get that the hypotenuse is 24ft or the length of the ladder. The base of the ladder is 15ft away from the building which is the leg of the right triangle. The screenshot is the diagram (my drawing isn't that good lol:))

Thus we can use cosine function with the angle between the ladder and the ground since we need to find the angle and we get

[tex]cos\alpha = \frac{15}{24}[/tex]

and [tex]\alpha = 51.3 degrees[/tex]

The angle is 51.3 degrees hope that helps!

A soccer ball has a radius of 11 cm. Using π ≈ 3.14 , what is the approximate volume of the soccer ball in cubic centimeters?

Answers

It can be noted that the volume of the ball which is a sphere will be 5572.45 cm³.

How to calculate volume

From the information given, the soccer ball has a radius of 11 cm. This will be calculated by using the volume of a sphere.

Volume = 4/3πr³

= 4/3 × 3.14 × 11³

= 5572.45 cm³

In conclusion, the correct option is 5572.45 cm³.

Learn more about volume on:

https://brainly.com/question/1972490

Avery bought 23 rainbow and balloon stickers for her little sister. The rainbow stickers cost 1 cent apiece and the balloon stickers cost 6 cents apiece. If Avery spent exactly 113 cents, how many of each type of sticker did she buy?

Answers

Answer:

5 rainbows and 18 ballons

Step-by-step explanation:

113 ÷ 6 = 18.83333

18 balloons

6×18 = 108 ( total amount of balloons)

113 - 108 = 5

what is the equation of the line that passes through the point (-3,-8) and has a slope of 4?

please help

Answers

Step-by-step explanation:

the easiest approach with a given point and the slope of the line is the point-slope form :

y - y1 = a(x - x1)

where "a" is the slope, and (x1, y1) is a point on the line.

so, we get

y - -8 = 4(x - -3)

y + 8 = 4(x + 3)

if we need the slope-intercept form

y = ax + b

we now simplify the point-slope form

y + 8 = 4x + 4×3 = 4x + 12

y = 4x + 4

The dimensions of a triangular lot are 176 feet by 77 feet by 152 feet. If the price of such land is​ $3 per square​ foot, how much does the lot​ cost?

Answers

Answer:

$17556

Step-by-step explanation:

5+8 divided by 2

Someone pls tell me

Answers

Answer:

it's 6.5 5+8=13 divided by 2 is 6.5

Step-by-step explanation:

The answer to you’re question is 6.5 .



Quadrilateral JKLM is a parallelogram. What is the m kjn

Answers

Answer:

solution: KL-2ML. LKIN=63x2=126*

Step-by-step explanation:

Mark me brainliest!!

Simplify the expression below. (10x+1)3x+5(5x)

Answers

Answer:

38x

Step-by-step explanation:

{(10x+1)3x}+5(5x)

10x+3x+25x=38x

Answer:

2x*(15x+14)

Step-by-step explanation:

First Step:

(3 • (10x + 1) • x) +  25x

Second Step:

 3x • (10x + 1) +  25x

Third Step:

.....

Fourth Step:

Pull out like factors :

30 x 2 + 28x  =   2x • (15x + 14)

Final result :

 2x • (15x + 14)

*PLS HELP*
The Question Is In The Attachment

Answers

Answer:

Step-by-step explanation:

Rhombus:

Base = b = 14 in

altitude = h = 12 in

Area of rhombus = b*h = 14 * 12 = 168 in²

Triangle:

base = b = 12 in

Height = h = 14 in

[tex]Area \ of \ triangle = \dfrac{1}{2}bh=\dfrac{1}{2}*12*14=12*7=84 \ in^{2}[/tex]

Area of the figure = area of the rhombus + area of the triangle

                               = 168 + 84

                               = 252 in²

If the perimeter of RSTU is 72 and RV = 16,
find RT

Answers

Answer:32

Step-by-step explanation:

since rv is 16 just multiply by 2 and =32

Becuase it’s a rhombi each side is equal

1. Solve: 3x42• (56 = 8x3)

Answers

Answer:126

Step-by-step explanation:40+40+40=120. 2x3 6. So 120+6= 126

CORRECT ANSWER GETS BRAINLIEST

Answers

Answer:

Plug in the 12 into the x's and find the ordered pair

Step-by-step explanation:

What are the dimensions of a rectangle with an area of 18 square inches and a perimeter of 18 inches? A) 9 in. x 2 in.B) 5 in. x 4 in.C) 6 in. x 3 in.D) 8 in. x 1 in.

Answers

Answer:

C

Step-by-step explanation:

Area: [tex]6 \times 3 = 18[/tex]

Perimeter: [tex]2 \times (6 + 3) = 18[/tex]

Answer:

C) 6 in. x 3

Step-by-step explanation:

area of rectangle: length * widthperimeter of rectangle: 2(length + width)

using the formula:

area:

6 * 3

18 in²

perimeter:

2( 6 + 3)

2(9)

18 in

Hence proved that C is the right answer.

What are the answers of this question’s?

2) 8(-3w + 7)

3) 7(-8-3w)

4) 4(-2 + 9b) + 3

5) 7(-8 + 6d)

6) 5(-6q + 4)

7)-9(-8 + 39)

8) 2(-8y + 4) - 9y

9)-4d + 2(-6-7d)

10) 4p + 2(-9p - 8)

Answers

The answer is a I took it along time ago

What is the domain of 2x+4/x^2-4

Answers

Answer:

(2*(x^3-2x^2+2))/(x^2)

A number is the same as 16 less than 3 times itself. What is the number?

Answers

Answer:

-8

Step-by-step explanation:

-8 x 3 = -24

-24 is 16 units less than -8

If angle B measures 25°, what is the approximate perimeter of the triangle below? A right triangle is shown. Angle A is 90 degrees and angle B is 25 degrees. Side A B has a length of 4. 10. 3 units 11. 8 units 22. 1 units 25. 2 units.

Answers

Answer:

If angle B measures 25°, the approximate perimeter of the triangle is 10.48 units. A right triangle is shown. Angle A is 90 degrees and angle B is 25 degrees.

Step-by-step explanation:

You need to paint your house to sell it. You can choose between two different painters, George and Henry. George will charge 90$ for the paint, and then $40 per hour. Henry will charge $120 for the paint and then $35 per hour.

After how many hours will the cost be the same?
If you estimate it will take about 10 hours to paint the room, who should you choose?

Answers

Answer:

At 6 hours the cost is the same. At 10 hours of service Henry is cheaper.

Step-by-step explanation:

This is simple. Follow my lead!

First we must create an equation for George

He charges $90 initially and then $40 per hour

So George's equation is:

[tex]y = 40x + 90[/tex]

Now let's find Henry's equation!

He charges $120 initially and then $35 per hour

So Henry's equation is:

[tex]y = 35x + 120[/tex]

1) To find when they will be the same, just set them equal to each other and solve for x.

[tex]40x + 90 = 35x + 120 \\ - 35x \\ 5x + 90 = 120 \\ - 90 \\ 5x = 30 \\ \div 5 \\ x = 6[/tex]

This means that when x = 6 or at 6 hours in the cost is the same!

2) Just solve both equations with x = 10

[tex]y = 40(10) + 90 \\ y = 400 + 90 \\ y = 490[/tex]

At 10 hours George's service costs $490!

[tex]y = 35(10) + 120 \\ y = 350 + 120 \\ y = 470[/tex]

At 10 hours Henry's service costs $470!

$470 is less than $490 so that means Henry is more cheaper!

Yay! We did it!

Brainliest Appreciated! If you have questions please don't hesitate to comment.

What is the future value if $18733 is invested at 5.1% for 10 years, compounded quarterly

Answers

Answer:

Step-by-step explanation:

The compound interest formula is [tex]P(1+r/n)^{nt}[/tex]

P: the initial amount of cashr: interest raten: # of times that interest is compounded per time periodt: # of time periods

Known information:

P: 18733r: 5.1% or 0.051n: quarterly or 4t: 10 yrs

Now let's set up the equation:

  Future amount: [tex]18733 (1+\frac{0.051}{4} )^{4*10}[/tex] [tex]=31,095.49[/tex]

Thus the future amount is $31.095.49.

Hope that helps!

Simplify 7 + (−3). Please hurry

-10
-4
4
10

Answers

Answer: The answer is 4. 7+(-3) is like 7 minus 3.

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

since the 3 is negative, you need to take 3 away from 7 = 4

A recipe for a cake calls for 3cups of water. Elisa accidentally put in 6 cups How many extra cups did she put in

A)5

B)4

C)1

D)3




NEED New help

Answers

Answer:

D) 3

Step-by-step explanation:

originally she had to put in 3 cups

she accidentally put in 3

the amount of extra cups is 6-3

=3

I think the answer is C

How to solve right triangles with no sides or angles given.

Answers

Use The Law of Cosines to calculate the unknown side.

Solve each system by using substitution.

Answers

Answer:

1: I think 14

Step-by-step explanation:

Answer:

See below.

(-1,-3), (1,-4), (1,-2)

Step-by-step explanation:

See the attached image.  One may also graph the equations and find the point they intersect (attached).

15. When x =9, which number is closest to the value of y on the line of best fit in the graph below?
12
1
9
17

Answers

It would be 9 I believe, bc if we know that x=9 we go to the x axis and we look at the point on the y axis it’s 9.
The line of best fit would be going between the two imaginary lines the points make. So if you’re looking at it like that, when x = 9, y = 11. However if the curriculum decides the line of best fit should be somewhere else y = 9

A box contains 2 red pencils, 15 blue pencils, 8 black pencils, and 5 green pencils. What is the best
description of the likelihood of selecting a blue pencil at random from the box?

Answers

Can you tell me how many pencils are in the box

Answer:

[tex] \frac{1}{2} [/tex]

Step-by-step explanation:

Red: 2, Blue: 15, Black: 8, Green: 5

Total number of pencil = 2 + 15 + 8 + 5 = 30 pencils

probability of picking a blue pencil at random= Number of blue pencil divided by Total number of pencil

=

[tex] \frac{15}{30} [/tex]

=

[tex] \frac{1}{2} [/tex]

what is 3 7/10+5 3/4+3/4 in simplest form

Answers

Answer:

10 1/5

Step-by-step explanation:

3 7/10 + 5 3/4 + 3/4

3 14/20 + 5 15/20 + 15/20

8 + 44/20

8 + 2 + 4/20

10 + 1/5

10 1/5

a triangular sail has a base of 5m and a height of 10 m if the canvas costs 18 dollars a square meter, find the cost of canvas to make a sail

Answers

Answer:

$450

Step-by-step explanation:

Start by finding the area of the triangular sail.

[tex]A=\frac{1}{2}bh[/tex]

Substitute the given lengths into the equation:

[tex]A=\frac{1}{2}*5*10\\A=5*5\\A=25m^2[/tex]

Now, multiply this by 18 dollars per square meter.

[tex]25m^2(\frac{18}{1m^2})=25*18=450[/tex]

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