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
Lynna [10]
3 years ago
11

In triangle ABC segment DE is parallel to the side AC. (The endpoints of segment DE lie on the sides AB and BC respectively). Fi

nd DE, if AC=20cm, AB=17cm, and BD=11.9cm;
Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
4 0

Answer:

  DE = 14 cm

Step-by-step explanation:

Segment DE creates similar triangles DBE and ABC. Thus ...

  BD/BA = DE/AC

  11.9/17 = DE/(20 cm) . . . . . fill in the given values

  DE = (20 cm)·(11.9/17) = 14 cm . . . . . multiply by 20 cm

You might be interested in
Hannah earned money for mowing the lawn. She buys 4 candy bars with the money she earned. Each candy bar costs $2.
mestny [16]

Answer:$8

Step-by-step explanation:

If you multiply 2(the amount of the candy bars cost) and 4(the amount of candy bars bought) you get the amount that it cost total. ($8)

7 0
4 years ago
If 7a - 11b = 0, what will be the value of a:b​
Lilit [14]

Answer:

11:7

Step-by-step explanation:

Solution

Here

7a-11b=0

a:b=?

we know that

a=7

b=11

ans =11:7

Hence proved

4 0
3 years ago
Read 2 more answers
Correct factorization of the polynomial below?<br><br> 2p^2 - 10pq + 25q^2
Aneli [31]
2p^2 - 10pq + 25q^2&#10;\\p^2+p^2-10pq+25q^2&#10;\\p^2+(p-5q)^2
4 0
3 years ago
Read 2 more answers
If x+y = 12 and x−y = 8, what is the value of x2+y2? (A) 20 (B) 24 (C) 100 (D) 104 (E) 208
SSSSS [86.1K]

Answer:

24

Step-by-step explanation:

x-y=8

x=8+y

(8+y) +y =12

2y=4

y=2

x+2=12

x=10  

                                y=2

                                 x=10

  10+2= 12  

  10-2 =8

                                 10*2=20                    2*2=4

                        20+4=24

                       

4 0
4 years ago
How many thousands can go into 90 hundreds
lesya692 [45]
To find this, multiply 90 by 100 to get 9000. Then divide by 100 to get 9.

9 thousands can go into 90 hundreds.
Hope this helped!
3 0
3 years ago
Other questions:
  • The senior class raised $1001 to buy new text books at $38.50 each. How many textbooks can they buy
    6·2 answers
  • Solve the inequality: |6x + 7| ≥ −3<br> and write the solution in interval notation
    7·1 answer
  • (5x^2+2)-(-4x^2+7)+(-3x^2-5)
    8·1 answer
  • Which set of points is a function?
    8·1 answer
  • 11. Tell whether the sequence is arithmetic. If it is, what is the common difference?
    7·2 answers
  • an art easel with equal sides are opened and placed on a desk, classify the type of triangle formed by the easel and the desk
    11·1 answer
  • Please help me with this problem......
    15·2 answers
  • Please help me i need it right now : which of the equation have two solution? Are the solution real or not real?​
    6·1 answer
  • Which expressions are equivalent to (5g+3h+4)\cdot2(5g+3h+4)⋅2left parenthesis, 5, g, plus, 3, h, plus, 4, right parenthesis, do
    8·1 answer
  • Please help with this problem
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!