Mathematics High School

Triangles ABC and DEF are similar triangles. What are the lengths of the unknown sides?

A) DF = 65 cm; DE = 25 cm
B) DF = 39 cm; DE = 15 cm
C) DF = 52 cm; DE = 48 cm
D) DF = 48 cm; DE = 52 cm

Triangles ABC And DEF Are Similar Triangles. What Are The Lengths Of The Unknown Sides?A) DF = 65 Cm;

Answers

Answer 1

Answer:

C

Step-by-step explanation:

5x4=20 that gives u an idea to multiple triangle ABC to 4 to get DEF since they are similar triangles

Answer 2

Answer:

C

Step-by-step explanation:

Multiply 5 by 4 to get FE=20 then multiply each side by 4

Related Questions

Twenty-eight slices of pizza cost $12. Approximately how much would 70 slices cost?

Answers

Answer:

$30.

Step-by-step explanation:

70/28 = 2.5

12 x 2.5 = 30

- 2/3+ 1/3 helpppp lol

Answers

-0.33333333333

Step-by-step explanation:

23+13 = ?

The two fractions already have like denominators, so just add the numerators:

-23+13=-2 + 13=-13

The result is:

-23+13=–13

Answer:

-2/3 + 1/3 = -1/3

Step-by-step explanation:

using addition to solve a fraction with the same base

step 1: take the denominator of both fractions and clear them from the equation

ex: -2/3 + 1/3 = ?   (-2 + 1 = ?)

step 2: solve the new equation -2 + 1 to get your answer of

ex: -2 + 1 = ?   (-2 + 1 = -1)

step 3: since both denominators of the fractions have the same number then our answer will also have a denominator of 3 giving us the answer to the problem -2/3 + 1/3 = ? is -1/3

plz give brain if this helps and is correct. thx

negative 4 plus what equals negative 2?

Answers

Answer: x = 2

Explanation:

-4 + x = -2

x = 2

Please help. I don't know the answer

Answers

Answer:

The answer is 3x+4y<-12

Step-by-step explanation:

Helppppppppppppppppppppppppppppppppppppppppp pls

Answers

Answer:

Coffee Beans to Go is cheaper, selling coffee at $4.75 per pound.

Step-by-step explanation:

The graph is cruddy and hard to see but! when you go to 2 pounds and then up the the cost, it's $9.50. 9.50/2= 4.75. kapeesh??

someone answer this for me pls

Answers

5/6 multiply by 2 up and down to make dominator equal then add the nominator 5 and since down is equal it is 5/6 hope this helps

Answer:

[tex] \frac{5}{6} [/tex]

Step-by-step explanation:

[tex] \frac{2}{3} + \frac{1}{6} [/tex]

Denominator (LCD) of [tex] \frac{2}{3} + \frac{1}{6} [/tex]. In other words, find the Least Common Multiple (LCM) of 3,6.

[tex] \frac{2 \times 2}{3 \times 2} + \frac{1}{6} [/tex]

Make the denominators the same as the LCD.

[tex] \frac{4}{6} + \frac{1}{6} [/tex]

Join the denominators.

[tex] \frac{4 + 1}{6} [/tex]

Simplify.

[tex] \frac{5}{6} [/tex]Hope it is helpful....

Help me simplify the expressions pleaseddees.....!!!! It's in a picccc​

Answers

Answer:

answer in explanation

Step-by-step explanation:

1. = 7x

2. =10x+ 7y

3. =8A + 10B - 1C

4. = 9M + 13N

5. = 5 x+ 9y + 18z

6. = 6x

7. = 20B

8, = 40C

9. = -18w

help help help please

Answers

Answer:

28

Step-by-step explanation:

first substract 49-21 which will give u 28.

then use this 28 for the other trapezium

add up 24 and 28 together which give 52. then substract 52 from 24 which will give u the answer 28. so therefore 28 is the answer.

hope u understood

100 POINTS AND BRAINLIEST!!

Answers

Possible Answer: B) $1,585.70

Explanation:
15% of $2,200 = $330

7.65% of $2,200 = $168.3

3% of $2,200 = $66

$330 + $168.3 + $66 = $564.3

$564.3 + $50 (healthcare cost) = $6.14.3

$2,200 - $614.3 = $1585.70

Answer:

$1,585.70

Step-by-step explanation:

15% of $2,200 = $330

7.65% of $2,200 = $168.3

3% of $2,200 = $66

$330 + $168.3 + $66 = $564.3

$564.3 + $50 (healthcare cost) = $6.14.3

$2,200 $614.3 = $1585.70

Solve for c. 2a + 3b = c

Please help as soon as possible. Thanks! =D

Answers

Answer:

a = c - 3b/2

Step-by-step explanation:

2a + 3b - 3b = c - 3b

2a = c - 3b

2a/2 = c/2 - 3b/2

therefore your answer is a = c - 3b/2

(-2)^6 + (-3)^2

Evaluate The Problem

Answers

Answer:

73

Step-by-step explanation:

(−2)  

6

+(−3)  

2

 

Calculate −2 to the power of 6 and get 64.

64+(−3)  

2

 

Calculate −3 to the power of 2 and get 9.

64+9

Add 64 and 9 to get 73.

73


Student Council plans on selling fresh hamburgers at the homecoming game. They
bought 40 lbs of ground chuck to use to make burgers and each burger uses 0.25 lbs
of chuck to make. What is the most amount of burgers they can sell at the game

Answers

Answer:

Student Council can make at the most 160 fresh burgers.

Step-by-step explanation:

Take 0.25 and divide it by 40.

0.25 / 40 = 160

What is the value of x?

Answers

3

I found the answer trust

Solution:

[tex] \frac{6 + 8x}{2} = 5x \\ = > 6 + 8x = 2(5x) \\ = > 6 + 8x = 10x \\ = > 6 = 10x - 8x \\ = > 6 = 2x \\ = > x = \frac{6}{2} \\ = > x = 3[/tex]

Answer:

x = 3

In the equation 3x - 5 = 22,

where "x is the cost of a sandwich"

Diana said that "the sandwich cost $9."

Victor's answer is $5.

Who is right? Support your claim with math evidence or reasoning.

Answers

Answer:

Diana said that "the sandwich cost $9

Step-by-step explanation:

3x - 5 = 22

3x = 22 + 5

3x = 27

x = 27 / 3

x = 9

Point R is located at 8,13 where is R after a translation 8 units left and 6 units down

Answers

Answer:

On the Y axis

Step-by-step explanation:

Answer:

(0, 7)

Step-by-step explanation:

aight so its set up as (x,y). X on the graph is left and right while y is up and down. "8" means that the X is positive or to the right of the origin. If you go left, essentially you are subtracting. So 8-8=0. Same kind of idea for the Y axis. Up is positive, down is negative. If you're going down 6 from 13 (13-6) then you are at 7. (0,7)

(9r ^3 + 5r^2 + 11r ) + (2r^3 +9r - 8r^2)

Answers

Answer:

11r3−3r2+20r

Step-by-step explanation:

let me know if its wrong

addison and kelsey are running on a path modeled by x^2+y^2-10x-18y-378=0, where the distance is in meters. what is the maximum distance between the runners at any given time

Answers

The maximum distance between them is the diameter of the circle, which is of 44 units.

The equation of a circle of center [tex](x_0, y_0)[/tex] and radius r is given by:

[tex](x - x_0)^2 + (y - y_0)^2 = r^2[/tex]

The diameter is twice the radius, and is the maximum distance between two points on the same circle.

They are running on a circular path, modeled by:

[tex]x^2 + y^2 - 10x - 18y = 378[/tex]

Completing the squares, the equation is:

[tex](x - 5)^2 + (y - 9)^2 = 378 + 5^2 + 9^2[/tex]

[tex](x - 5)^2 + (y - 9)^2 = 378 + 25 + 81[/tex]

[tex](x - 5)^2 + (y - 9)^2 = 484[/tex]

Then, the radius is: [tex]\sqrt{484} = 22[/tex], which means that the maximum distance between the runners at any given time is of 44 units.

A similar problem is given at https://brainly.com/question/25008198

Kwami had two large sheets of paper. He cut each piece of paper in half, then he cut the smaller pieces of paper in half two more times.

Answers

Answer:

14

Step-by-step explanation:

B is between A and C. C is between B and D. If BC = 45 and CD is 20. If AB = CD, what is the measure of AD?

AD =

Answers

Answer:

AD = 85

Step-by-step explanation:

AD = AB + BC + CD ( substitute values , noting AB = CD = 20 ) , then

AD = 20 + 45 + 20 = 85

Cost of a shirt: $14.95

Discount: 45%

Tax: 6%

What is the new cost?

Answers

Answer:

$10.28

Step-by-step explanation:

Can someone help me do this

Answers

Answer:

X = 2

5y + (what is that number???) can not see it

Someone put the same question earlier and I answered, I will answer again

So to find x ,
5x+2=12 as they are equivalent on the triangles
Minus 2 from both sides
5x = 10
Divide by 5 from both sides
X = 2

5y+6 = 111
Minus 6 from both sides
5y = 105
Divide by 5 from both sides
Y = 21

Find the ratio 45 sec to 1 min

Answers

Answer:

3:4

Step-by-step explanation:

Use the​ slope-intercept form to graph the equation y=5/9x+3

Answers

Your graph should look like this :) !

Solve each problem and decide which is the best of the choices given.
What is the distance between the points (1,6) and (-7,3) on a standard coordinate plane?

39

73

173

55

Answers

55 is the answer !!!!

Step-by-step explanation:

I think you are missing the square root signs or so in the answer options.

the distance between 2 points is calculated by using Pythagoras for right-angled triangles.

c² = a² + b²

c is the Hypotenuse of the triangle and the distance between the points, which are the end points of the Hypotenuse.

a and b are the legs and enclose the 90 degree angle. they are the differences of the x and y coordinates between the 2 points.

so,

distance² = (1 - -7)² + (6 - 3)² = 8² + 3² = 64+9 = 73

=>

distance = sqrt(73)

The length of a rectangle is 3 inches more than its width. if the perimeter is 42 inches, find the dimensions of the rectangle

Answers

Answer:

length = 12

width = 9

Step-by-step explanation:

Let w= width of rectangle

length = w + 3

2w + 2(w + 3) = 42

2w + 2w + 6 = 42

4w = 36

w = 9 ( width of rectangle)

width = 9 inches

length = 9 + 3 = 12 inches

Write the equation of the line in slope intercept form.


(-8,10); m=1/2

Answers

Answer:

y = (1/2)x + 14

Step-by-step explanation:

y = (1/2)x + 14

Write 1.1x 10-4 in standard form.

Write 2.52 x 10-5 in standard form.

Write 6.25 x 105 in standard form.

Write 4.857x 10 in standard form.

Answers

Answer:

Glad to help..

Step-by-step explanation:

1) 1.1×10-4 standard form- 7

2) 2.52×10-5 standard form- 20.2

3) 6.25×105 standard form- 656.25

4) 4.857×10 standard form- 48.57

Twenty decreased by 2 times a
number is the same as 10 less
than 3 times the number.

Answers

Answer:

6

Step-by-step explanation:

8. Melody subscribes to a coffee service. For $10 a month, Melody is able to purchase a cup of coffee for the
discounted price of $2 for each cup. This situation can be modeled by the function f(x) = 2x+10, where x
represents the number of cups of coffee Melody can purchase. This membership caps the number of cups of
coffee that can be purchased each month at 6.
(D)
Which answer choices best describe the domain and range of f?
Choose TWO correct answers from the 5 choices.
ооооо
The range of the function is 102y 2:22.
The domain of the function is 02 x 6. (S-V)E- = (-)5 noitsupe er zelam v to oulev derW.A
The domain of the function is (10, 12, 14, 16, 18, 20, 22).
MO
The range of the function is {10, 12, 14, 16, 18, 20, 22}
a e
А A
v brex noswiad girlanousion seri seworla data

Answers

Answer:

Domain: 0 <= x <= 6

Range: 10 <= x <= 22

Step-by-step explanation:

There is no minimum to the number of cups she can purchase, thus x > 0 or x >= 1. The maximum amount she can purchase is x = 6 or x <= 6, thus 0 <= x <= 6. Plugging these two values into the function we get a range of 10 <= x <= 22.

How do you find area with all of the different numbers like this?

Answers

hopefully this helps !

Answer:

split the shape into two different shapes, find the area of both and then add them together. the answer would be : 46 square centimeters.

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