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
Which steps show how to use the distributive property to evaluate 9.32?
MAVERICK [17]

Answer:

D

Step-by-step explanation:

3 0
3 years ago
Tom has 12 reports to file. If each report takes an average of 45 minutes to file, how long will it take him to file 75% of them
Jobisdone [24]

Alright, lets get started.

One report takes to file an average of = 45 minutes

Means 12 reports takes to file time = 12 * 45 = 540 minutes

12 reports filing total time = 540 minutes

We are asked to find time to file 75 % of them.

Which means 75 % of 540

= 540 * 75/100

= 540 * 0.75

= 405 minutes

We could convert it into hrs dividing with 60.

405 / 60 = 6.75 hrs

Means it will take 6.75 hrs to file 75% of them: Answer

Hope it will help :)

8 0
3 years ago
When there is a positive trend (or positive correlation), do the y-values of the points on the scatter plot tend to increase or
Assoli18 [71]
As the y-axes decreases the x-axes increases 

4 0
3 years ago
Read 2 more answers
I need help fast please​
nalin [4]
Perimeter is 2l+2w

Therefore 20=2(6)+2w. Solve for w to get

w=3

Hope this helped ;)
3 0
1 year ago
Read 2 more answers
How do I find the value of WQ
Brut [27]

Answer:

WQ = 2.67 to the nearest hundredth.

Step-by-step explanation:

The area of triangle PQX = 1/2 * PX * QX.

The area of the rectangle = 8 * YX .

But YX = 2 PX  so its area = 8 *2PX = 16*PX.

We are given that area of PQX is 1/6 of the area of  WXYZ, so we have the equation:-

16 PX = 6* 1/2*PX * QX

16 = 3QX

QX = 16/3  = 5.33

Finally WQ = WX - QX

= 8 - 5.33

= 2.67



4 0
4 years ago
Other questions:
  • write two linear functions, f(x) and g(x). For example, f(x)= 3x-7 and g(x)= -2x+5. Then see whether f(x) - (-g(x)) is equivalen
    6·1 answer
  • Imagine we are throwing a five-sided die 50 times. on average out of these 50 throws how often would the five-sided die show an
    6·1 answer
  • Together, Tom and Max have 72 baseball cards. Tom has 2 more than times as many as Max has. How many baseball cards does Tom hav
    11·2 answers
  • Solve 2x+3y-z=-4<br> 3x+2y+2z=14<br> x -3z=-13
    10·1 answer
  • Fahim is 6 feet tall. At noon, he stands with the sun behind him casting a shadow. The distance from the top of Fahim’s head to
    6·2 answers
  • Find (x³+x²-20x+24) divided by (x-3)​
    13·1 answer
  • Sam rides his bike at a rate of 15 miles per hour. How many feet per minute is this?
    7·1 answer
  • Which segment is a radius of o 7?
    11·1 answer
  • A whole number is multiplied by six. What must the answer be?
    8·2 answers
  • In Denisha's school, 0.826 students participated in a sport. If there are one thousand students in Denisha's school, how many pa
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!