1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nikitich [7]
3 years ago
8

What is the length of CD ? In this diagram ABC EDC ? Please help !!!!

Mathematics
2 answers:
n200080 [17]3 years ago
5 0
Answer:
CD = x = 4 units

Explanation:
We are given that the two triangles are similar. This means that we can set the similarity proportionality as follows:
\frac{BC}{CD} =  \frac{CA}{CE} =  \frac{AB}{ED}

W e have:
BC = 20 - x
AC = 20
CD = x
CE = 5

Substitute in the above proportionality and solve for x as follows:
\frac{20-x}{x} =  \frac{20}{5} = 4

4x = 20 - x
5x = 20
x = 4

Based on he above:
CD = 4 units
BC = 20 - x = 20 - 4 = 16 units

Hope this helps :)
Inessa05 [86]3 years ago
3 0

Answer: 4 (apex)

Step-by-step explanation:

You might be interested in
Efectúa las siguientes operaciones, aplicando la propiedad distributiva de la multiplicación. De ser posible simplifique los res
Alchen [17]

Answer:

Step-by-step explanation:

e) 3√2 (-3√6 -2 -6)

3√2 (-3√6 - 8)

-9√12 - 24√2

-9√(2^2 * 3) - 24√2

-18√3 - 24√2

or

6(-3√3 - 4√2)

f) -5√2 (3 + 2√2 - 6 - 1)

-5√2(-4 + 2√2)

20√2 - 20

or

20(√2 - 1)

7 0
3 years ago
Which operation should be performed first according to the order of operations? 3(4)^2/4+16-9
skad [1K]
PEMDAS
Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction

ask yourself which one of these comes first in the given equation

hint: its the exponent 
5 0
3 years ago
Landen has his daily video gaming time each day for 7 days. But one day he plays and extra 50 minutes. His total video playing t
mojhsa [17]

Answer:

im thinking 25 or 24

Step-by-step explanation:

sorry if i made you get it wrong

8 0
3 years ago
Please I need it asap
Sauron [17]

Answer:

5) √(3² + 5²) = √34

6) √(4² - 3²) = √7

7) the visible answers all say exactly the same thing in different ways and are all correct.

Step-by-step explanation:

3 0
3 years ago
TIMED!!! NEED HELP ASAP!!!! I'm lazy......
Colt1911 [192]
On the X side it’s +1
Hopefully this helps
7 0
3 years ago
Other questions:
  • 8.27 as a mixed number
    14·2 answers
  • 29.990 plus 6.5% tax
    5·2 answers
  • Simplify [ ( 5.65 + 7.92 ) - 10.29 ] × 15​
    7·1 answer
  • FIRST PERSON TO ADD ME AND AWNSER NO QUESTION GETS BRAINLIEST :) INNA GOOD MOOD
    14·1 answer
  • You walk 30 m to the north, then turn 90 degrees to your left and walk another 80 m. How far are you from where you originally s
    14·2 answers
  • you begin with $25 in savings and $50 in checking, each week you deposit $5 into savings and $10 into checking. after how many w
    6·1 answer
  • Which is not an equation of the line that passes through the points (1, 1) and (5, 5)?
    7·1 answer
  • What is the sum of ⅔+<br>1/5​
    8·2 answers
  • Write the equation of the line in fully simplified slope-intercept form??
    6·1 answer
  • Give three examples of equations that have the solution -6.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!