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
NARA [144]
3 years ago
13

Hi I need to find DO length ​

Mathematics
1 answer:
MakcuM [25]3 years ago
4 0

Answer:

10 cm

Step-by-step explanation:

If we assume that DC is parallel to AB, then triangle DOC is similar to triangle AOB.

However, even with this assumption, there is not enough information in the diagram to solve for DO.  We would also need to know the length of CO.  Then we could write a proportion:

DO / (DO + 20) = CO / (CO + 24)

Edit: OD is 2 cm shorter than OC.  If we call x the length of OD, then the length of OC is x+2.

Putting this into our proportion:

x / (x + 20) = (x + 2) / (x + 2 + 24)

x / (x + 20) = (x + 2) / (x + 26)

Cross multiply:

x (x + 26) = (x + 2) (x + 20)

Distribute:

x² + 26x = x² + 20x + 2x + 40

x² + 26x = x² + 22x + 40

4x = 40

x = 10

So the length of DO is 10 cm.

You might be interested in
Can someone please help me
yulyashka [42]

9514 1404 393

Answer:

  D. at the ballpark

Step-by-step explanation:

The y-coordinate doesn't change between points C and D. That means Daniel's distance from home is not changing. Since Daniel rode to the ballpark and back, and since segment CD represents Daniel's farthest distance from home, we conclude ...

  CD represents the time Daniel spent at the ballpark.

5 0
2 years ago
What is 3 4/15 divided by (8 divided by 6 3/10)
kenny6666 [7]
8 / 6 3/10

= 8 * 10/63
=80/63

3 4/15 / 80/63

= 49/15 * 63/80

=<u>2.5725</u>

5 0
3 years ago
my sister and I ate some of a chocolate bar. she ate 3/5 of it and I ate 1/10 of it. how much of the chocolate bar did we eat
sergij07 [2.7K]
3/5 + 1/10 = 7/10.
Hope this helps!:)
~Scarlett
7 0
3 years ago
Read 2 more answers
Juanita can complete 12 math problems in 40 minutes. How many problems can she complete in 60 minutes
RSB [31]

Answer:

The answer is 18.

Step-by-step explanation:

3 0
3 years ago
System II
dalvyx [7]

Answer:

<h2>hope it helps you see the attachment for further information </h2>

8 0
3 years ago
Other questions:
  • Which is the slope of for (-5,9) and (-5,-5).
    5·2 answers
  • A factory overseer selects 40 threaded rods at random from those produced that week at the factory, then she
    8·1 answer
  • Simplify 15.6 divided by negative 3..<br><br> −5.6<br><br> 5.6<br><br> −5.2<br><br> 5.2
    8·2 answers
  • What is the factor of -12n - 20
    6·1 answer
  • What are the coordinates of the vertex for f(x) = 3x2 + 6x + 3? (−1, 0) (3, 6) (0, −1) (6, 3)
    10·2 answers
  • Calvin earned $1,425 dollars by working five days in a week . He also received a bonus of $200.What is the average amount that h
    12·1 answer
  • A. Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process.
    11·2 answers
  • Which ratio is equivalent to the ratio 33:39?
    5·2 answers
  • A heating pad takes 8,827 Watts during each time it is turned on. If you only use it for 43 minutes, how much CO2 was created? R
    14·1 answer
  • What is the sum of the interior angles of the polygon pictured below?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!