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
son4ous [18]
3 years ago
7

ABC and AED are straight lines. BE and CD are parallel. AC = 12.3cm AB = 8.2cm BE = 3.8cm a) Work out length CD. AD = 9.15cm

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
6 0

Answer:

15.33cm

Step-by-step explanation:

when you try to draw out this figure, satisfying the fact that Ad and Ac are both straight lines. you find the ultimately  it forms a right-angled triangle with sides AC and AD and hypotenuse CD.

Now, you may use Pythagoras theorem to solve:

AC^2 + AD^2 = CD^2

12.3^2 + 9.15^2 = CD^2

CD^2 = 235.0125

CD = square root of 235.0125 = 15.33cm

Hope this helps

You might be interested in
Which equation is true given w=7
DENIUS [597]
Where is the equation?
6 0
3 years ago
What is the sum of 1/10+8/100
galben [10]
\frac{1}{10} + \frac{8}{100} = \frac{10}{100} + \frac{8}{100}= \frac{10+8}{100}=\frac{18}{100} = \frac{9}{50}
8 0
3 years ago
Read 2 more answers
Select all number combinations that COULD make a triangle
tester [92]

Answer:

2 cm, 9 cm, 10 cm

Step-by-step explanation:

To know if a combination is a triangle all you have to do is see if the combinations add up to 180

(2)(9)(10)=180 therefore it is a triangle.

All the other angles do not add up to 180 so they can't be triangles!!

(4)(10)(3) =120

(5)(6)(11) =330

(4)(5)(7) =140

4 0
2 years ago
Find the value of x.<br>x 13 39​
Alex

Answer:

13x-39=39

13x=78

 the answer is x=6

6 0
3 years ago
A line and the point (3,4) are graphed in the coordinate plane. what is the equation of the line that passes through the point (
oksano4ka [1.4K]

Answer:

B. y=1/4x+13/4

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Calculate the monthly payment for a 5-year car loan of $23,570 at 10.43% interest, compounded monthly. A. $247.44 b. $337.56 c.
    6·2 answers
  • Branson and his sister beatrice combined their allow of 7$ each, so they could buy a movie for 12$. They bought 1$ containers of
    10·2 answers
  • Choose the mean of the data set below. {7, 10, 1, 3, 9, 6}
    10·1 answer
  • Help plz ill give extra points
    7·2 answers
  • PLEASE HELP DUE IN 30 MINUTES !!!
    10·2 answers
  • Tú tienes la mitad de lo que tenías y tendrás el triple de lo que tienes. Si tuvieras lo que tienes, tenías y tendrás, tendrías
    8·1 answer
  • A piece of wire 6 cm long weighs 30 grams. What is the weight of an 8 m length of the same wire?
    9·1 answer
  • (01.06 HC)
    10·2 answers
  • <img src="https://tex.z-dn.net/?f=%5CLarge%5Cmathtt%5Ccolor%7Bred%7D%7BH%7D%5Ccolor%7Borange%7D%7BE%7D%5Ccolor%7Byellow%7D%7BL%7
    9·2 answers
  • PLEASE HELP I'LL GIVE BRAINLY AND POINTS
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!