Work out the length of DB in the diagram below.
Not drawn
to scale
С
5 cm
D
B
4 cm
E
А
18 cm

Work Out The Length Of DB In The Diagram Below.Not Drawnto Scale5 CmDB4 CmE18 Cm

Answers

Answer 1

Answer:

10cm

Step-by-step explanation:

CDB and CEA are similar=>CD/CE=DB/EA=>5/9=DB/18=>

9DB=90

DB=10

Answer 2

The required length of DB in the diagram below is 10 cm.

What is the triangle?

Triangle is a polygon that has three sides and three angles. The sum of the angle of the triangle is 180 degrees.

Given:

In the given triangle we have

СD=5 cm

DE= 4 cm

EA= 18 cm

According to given question we have

In a triangle CDB and CEA are similar

So,

[tex]\frac{CD}{CE} =\frac{DB}{EA}\\\\=\frac{5}{9} =\frac{DB}{18}\\\\=9DB=90\\\\DB=10[/tex]

Therefore, the required length of DB in the diagram below is 10 cm.

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Related Questions

Find the size of angle AED?

Answers

Hey there .. here is ur answer

Plz check the image given ..

Please mark me as brainliest if you find it helpful ..

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The size of angle AED is 173°

How to find the size of angle AED?

In geometry, an angle is the figure formed by two rays (i.e. the sides of the angle) sharing a common endpoint (i.e. vertex).

Angles formed by two rays lie in the plane that contains the rays. Angles are also formed by the intersection of two planes.

The size of angle AED can be determined as follow:

In ΔBCE,

∠BEC + 73° + 79° = 180° (The sum of angles on a triangle is 180°)

∠BEC = 180 - 73 - 79

∠BEC = 28°

Also, in ΔCDE,

∠BEC + 37° + 96° = 180° (The sum of angles on a triangle is 180°)

∠CED = 180 - 37 - 96

∠CED = 47°

∠BED = ∠BEC  + ∠CED

∠BED = 28 + 47

∠BED = 75°

∠AED + ∠BED + ∠AEB = 360° (The sum of angles at a point is 360°)

∠AED + 75° + 112°  = 360°

∠AED = 360 - 75 - 112

∠AED = 173°

Therefore, the size of angle AED is 173°.

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An online shopping club has 12,500 members when it charges $8 per month for membership. For each $1 monthly increase in membership fee, the club loses approximately 500 of its existing members

Answers

Answer:

Revenue  =  Members  *  (Cost Per Member)

R  = (12.500 *8) =

R= 100.000

R  = (12.500 - 500) ( 8 + 1)=

R=12000*9=

R=108.000

Step-by-step explanation:

Revenue  =  Members  *  (Cost Per Member)

R  = (12.500 *8) =

R= 100.000

R  = (12.500 - 500) ( 8 + 1)=

R=12000*9=

R=108.000

 

Where x represents the number of $1  increases

Where x represents the number of $1  increases

1/2+ p = -3 solve for p

Answers

Answer:

-3.5

Step-by-step explanation:

1/2+p= -3

p= -3-1/2

p= -3.5

hope it helped? (3

How would I solve this problem?

Answers

Answer:

n= 4

Step-by-step explanation:

[tex]a^{m}*a^{n}=a^{m+n}\\\\(a^{m})^{n}=a^{m*n}\\\\\frac{a^{m}}{a^{n}}=a^{m-n}[/tex]

[tex]7^{7}*7^{5}=\frac{(7^{n})^{4}}{7^{4}}\\\\7^{7+5}=\frac{7^{n*4}}{7^{4}}\\\\7^{12}=\frac{7^{4n}}{7^{4}}\\\\7^{12}=7^{4n-4}[/tex]

Compare the exponents,

4n - 4 = 12     {Add 4 to both sides}

4n = 12 + 4

4n = 16

n = 16/4

n = 4

1000,500,250,125 arithmetric or geometric

Answers

Answer:

Hi mate.....

Step-by-step explanation:

Answer is Arithmetic

Geometric includes shapes and angles....

hope it helps,

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Work out 6 x (11- 3)

Answers

Answer:

first you do 11-3 to get 8. then you multiply 8 and 6 to get 48

how to find the surface area of a triangular prism

Answers

Answer:

Triangular prisms have their own formula for finding surface area because they have two triangular faces opposite each other. The formula A=12bh is used to find the area of the top and bases triangular faces, where A = area, b = base, and h = height.

Step-by-step explanation:

What is the y-intercept of the line that passes through the points (2,-1) and (-3,9)

Answers

Answer:

The equation of the straight line y = -2x +3

y-intercept =  3 and m =-2

Step-by-step explanation:

Step(i):-

Given that the points are ( 2,-1) and (-3,9)

The slope of the line

[tex]m = \frac{y_{2}-y_{1} }{x_{2} -x_{1} } = \frac{9-(-1)}{-3-(2)} = \frac{10}{-5} = -2[/tex]

Step(ii):-

The equation of the straight line passing through the point ( 2,-1) and slope m=-2

      y-y₁ = m( x- x₁)

     y -(-1) = -2 ( x-2)

      y +1 = -2x +4

     2x +y +1-4 =0

    2x +y -3 =0

Final answer:-

The equation of the straight line y = -2x +3

Pls Help Me With This Math Question :,>

Answers

Answer:

Factor the numerator and denominator and cancel the common factors. 2x -2.1

This answer should be (2x-2.1) :) hope this helps

The drama club is having a car wash as a fundraiser. They wash x cars at $5 each
and y trucks at $8 each. They will wash at least 26 cars and 15 trucks. They need to
make at least $250. Which system describes this situation?

Answers

Answer:

x + y ≥ 26 + 15

5x + 8y ≥ 250 (see below)

Step-by-step explanation:

First, write an equation to represent the total cost to wash cars:

$5x = cost for cars

Then, write another for trucks:

$8y = cost for trucks

If the question is saying that they will wash at least 26 cars and 15 trucks, that means they could wash more. This means that we'll need an inequality:

This inequality represents that the total number of cars and trucks they wash will be at least—which means that it is equal to or greater than—than the amount given:

x + y ≥ 26 + 15

Any equation or inequality with two unknowns is not solvable, meaning we need a system of equations:

If they make at least $250, that means that we need to combine the costs of the cars and trucks to make an inequality:

5x + 8y ≥ 250

Now you have your system of equations:

x + y ≥ 26 + 15

5x + 8y ≥ 250

Kelly paid $14.30 for 3.25 pounds of chicken what the price per chcken

Answers

Answer:

the price per pound : 14.3/3.25 =$4.4/ pound

Step-by-step explanation:

b)
A retailer sold an article to a customer at a loss of 10%. The customer purchased
it for Rs 25,425 including 13% VAT. Calculate the cost price of the article to the
retailer.​









those who do this question i will mark us as a brilliant

Answers

Answer:

loss=10%

sp with vat=rs25425

sp=sp with vat-vat%of sp=rs25425-13/100×sp

sp+13/100×sp=rs25425

(100sp+13sp)/100=rs25425

113sp=rs2542500

sp=rs2542500/113=22500

cp=sp+loss %of cp

cp-10/100×cp=22500

(10cp-cp)/100=22500

9cp=2250000

cp=2250000/9=250000

A percentage is a way to describe a part of a whole. The cost price of the article is Rs. 25,000.

What are Percentages?

A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

Let the selling price of the article be represented by x. Since the customet paid 13% vat , therefore,

x + 13% of x = Rs. 25,425

x + 0.13x = 25,425

1.13x = 25,425

x = 22,500

Thus, the selling price is 22,500.

Since the retailer had a 10% loss, therefore, the selling price will be 90% of the cost price.

90% of cost price = selling price

0.90×Cost price = 22,500

Cost price = 25,000

Hence, the cost price of the article is Rs. 25,000.

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Which equation represents exponential decay?
O A y = 100(31)
O B. y = 1 (3.1)
C. y = 10(0.13)
D. y = 100(1.03)

Answers

Answer:

The function y = 10(0.13)ˣ represents exponential decay.

Hence, option C is the correct function.

Step-by-step explanation:

We know that an exponential function is of the form

y = abˣ

where 0 < b < 1

Please note that an exponential function cannot have a base of 0, 1, or a negative value.

Now, if we carefully observe, the function y = 10(0.13)ˣ is the only option correct as

here 0 < b < 1 and a > 0

Therefore, the function y = 10(0.13)ˣ represents exponential decay.

Hence, option C is the correct function.

Plz help need help please

Answers

Answer:40 teenagers

Step-by-step explanation:

To find the answer to this question, you would have to divide 2000(amount of people) by 100 to find the amount of people for 1%. After you find that, you would multiply the answer by 2.  Equation: 2000÷100= 20 · 2= 40.

40 teenagers

So we know that to find the answer to this question, you would have to divide 2000(amount of people) by 100 to find the amount of people for 1%.

After you find that, you would multiply the answer by 2.  

Equation: 2000÷100= 20 · 2= 40.

Final result: 40

Solve. Show all steps.
1/8 x = 1/2

Answers

Answer:

[tex] \frac{1}{8} x = \frac{1}{2} \\ x = \frac{8}{2} \\ \boxed{x = 4}[/tex]

x=4 is the right answer.

Answer:

x = 4

Step-by-step explanation:

1/8 * x = 1/2

x = 1/2 *8

x = 4

hope it help you

Can someone please help me

Answers

Answer:

high school is hard :(

Step-by-step explanation:

Pleasse Helppp Asapppp.

Answers

Answer:

77 degrees

Step-by-step explanation:

supplementary angles add up to 180 degrees

subtract 103 from 180 to get 77 degrees

4÷1.84=
what is the answer to this and explain how u got ur answer btw this is easy division but my brain cells just hate math so yeah- (btw this is in decimal form)

Answers

4÷1.84 means 4 over 1.84 (4/1.84) = 2.17

if u calculate 1.84 ÷ 4 (using calculator) the ans will be different bcauz it means 1.84 over 4 (1.84/4)

What is m∠NPQ? Please help!

Answers

Answer:

d.not enogh information

The measure of the angle ∠NPQ will be 118°. Then the correct option is C.

What is a trapezoid?

It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In a trapezoid, one pair of opposite sides are parallel.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

In the isosceles trapezoid, the sum of the opposite angle is 180 degrees. Then the equation is given as,

∠NMQ + ∠NPQ = 180°

∠NPQ + 32° + 30° = 180°

∠NPQ = 118°

The measure of the angle ∠NPQ will be 118°. Then the correct option is C.

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how do you find a missing exponent? If the question is 2^3 x 2^5 = 2^?

Answers

Answer:

2^3 X 2^5 = 2^8

when multiplying indices with the same base number just add the indices

What is the distance from Jto K?
10
8
6
K(-3, 5) •
- 10 -8 -6 4 2
2 4 6 8 10
-4
-6
• (-8, -7)
-8
-10

Answers

Answer:

Formula used :---

Distance between two points on a graph is √{(X-x)²+(Y-y)²}

Distance from J to K is :---

[tex] \sqrt{ {(- 3 + 8)}^{2} + {(5 + 7)}^{2}} \\ = \sqrt{ {5}^{2} + {12}^{2} } \\ = \sqrt{25 + 144} \\ = \sqrt{169} \\ = \boxed{13}[/tex]

A. 13 units is the right answer.

a map of 5 inches represents 200 miles of actual distance suppose the distance between two cities on the map is 7 inches what is the actual distance between the two cities write the rule you used to find the actual distance ​

Answers

Answer:

280 miles and the rule is multiply by 40

Step-by-step explanation:

What is the answer to this question?​

Answers

Answer:

9 I think don't trust me 100%

Step-by-step explanation:

Answer:

x= 9

Step-by-step explanation:

an amusement park it's admission price to $15.50 per day, but now charges $1.50 per ride mark has 26 to spend on admission and ride. write and solve an equation to find how many rides mark can ride in one day? "solving multi-step probles with equation"​

Answers

Answer:

Step-by-step explanation:

26-$15.50=10.5

10.5/1.5=7

he can ride 7 rides in one day

1. how long will it take to run 1.5 kilometres if you run a 10 metre per second
2.Steve travels at 36 kilometre per hour for 20 seconds how far does he go

Answers

Answer:

1.150 seconds or 2.5 minutes

2. 0.2km

Step-by-step explanation:

1. 1.5 x 1000=1500

  1500/10=150

150/60=2.5minutes

2. 60mins = 36km -Divide both sides by 60 to get how far he would go in 1 minute/60 secs

    1min/60secs=0.6km -Divide both sides by 3 to get how far he would go in 20 secs

    20secs=0.2km

I really need help plzzzzz​

Answers

Answer:

All similar, see below

Step-by-step explanation:

Q1

Angles

26° & 64° & 90°AA similarity

Q2

Ratios of corresponding sides:

6/8 = 9/12 = 12/16 ⇒ 3/4SSS similarity

Q3

Angle C is vertical

∠ACB ≅ ∠DCE

Ratios of corresponding sides:

9/15 = 18/30 ⇒ 3/5SAS similarity

Help pleaseeeeeeeeee

Answers

Answer:

2 the answer is two, two halves can create a semi circle.

Step-by-step explanation:

Answer: B)
If you add two of them together they form a semi circle

Ben reads 6 pages of a book in 8 minutes, 9 pages in 12 minutes, and 30 pages in 40 minutes. If m represents the number of minutes and p represents the number of pages, which equation represents the number of pages Ben reads per minute? A m=34p B p=34m C p=m+43 D m=p+34

Answers

p=3/4m is the answer

The required proportional relationship is given a p = 3/4 m. Optio B is correct.

Given that,
Ben reads 6 pages of a book in 8 minutes, 9 pages in 12 minutes, and 30 pages in 40 minutes. If m represents the number of minutes and p represents the number of pages.

What is proportionality?

proportionality is defined as between two or more sets of values, and how these values are related to each other in a sense are they directly proportional or inversely proportional to each other.

As here, in the question there is no mention of any kind of intercept thus the relationship explained is the proportionality relation between the number of pages P and the number of minutes m.
According to the question,
P ∝ M
P =Km - - - - - (1)
Put one ordered pair from the given,
6 = K 8
K = 3 / 4
Put K in equation 1.
P = 3 / 4 m

Thus, the required proportional relationship is given a p = 3/4 m.

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cos(x)
⁻⁻⁻⁻⁻⁻⁻⁻=sin(x)
cot(x)

Answers

Answer:

What is this exactly?

Step-by-step explanation:

In one ancient civilization, hunters shared fresh meat with other individuals in a group without an explicit timeframe or agreement about who would do what in return. However, the favor would surely be returned by those in the tribe who could cook, take care of children, and provide shelter. What type of economy does this MOST closely describe? A. socialist economy B. gift economy C. market economy D. planned economy

Answers

Answer:

It is a gift economy

Step-by-step explanation:

This is correct on playto, but let me give you an explanation. A gift economy is a explicit agreement between two parties that if a favor is given, it'd be returned at a later time. If a hunter shared meat with others, the hunter expects to get something later in returned. By defintion, this is the role of a gift economy.

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