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
Dafna11 [192]
2 years ago
14

Ab=6cm Ac=12cm Calculate the length of CD

Mathematics
1 answer:
KatRina [158]2 years ago
3 0

Answer:

12.7 cm

Step-by-step explanation:

ABC

12² = 6² + BC²

12² - 6² = BC²

144 - 36 = 108

CB² = 108

√108 = 10.392

CB = 10.392

CBD

Sin (55°) = CB / CD

0.81915 = √108 / CD

CD = 10.392 / 0.81915

CD = 12.686

CD = 12.7cm

You might be interested in
Given: angle 2 and angle 4 are vertical angles Prove: angle 2 congreunt angle 4
7nadin3 [17]

Answer:

Step-by-step explanation:

7 0
2 years ago
Subtract 1 + ( - 1 ) - ( - 3 ). Hint: Add the first two numbers, then subtract the -3 from the result of that addition
kykrilka [37]

Answer:

Add 3. Double that. Subtract 4. Cut that in half. Subtract your original number. Your result is 1!

Step-by-step explanation:

I'm guessing, Hope its right.

7 0
3 years ago
P(x) = 4x^2 - 15x - 25
Airida [17]
The answear is P(x)=4x
5 0
2 years ago
Read 2 more answers
During the summer, Cecile read twice as many books as Kami. Laura read three times as
Eva8 [605]

Answer:

The equation

c x 2 > k

l x 3 ?> c > k

g = 30 = c + l + k

this equation is the same as...

Cecile read twice as many books as Kami.

Laura read 3 times as many books as Kami, but possibly less than Cecile.

Gigi read 30 books. 30 books is the same as all 3 girls combined.

To find out how many books each girl read, you need to find 3 unequal numbers that add up to 30. These numbers are substituted, only because they can be anything at all, and I want to prevent confusions.

hope this helps!

6 0
2 years ago
If x and y are complementary angles, then x and y are
meriva

Step-by-step explanation:

complementary angles sum up to 90

x + y = 90

45 + 45 = 90

x = 45 \\ y = 45

4 0
2 years ago
Read 2 more answers
Other questions:
  • A jar if dimes and quarters is worth $4.55. If there are the same number of dimes as quarters, what is the value of only the dim
    8·1 answer
  • 44.3 in scientific notation
    10·1 answer
  • Someone please help me its do Friday and i'm so lost :(
    6·2 answers
  • A student bought a juice pouch for $2.50 and 3 bags of chips . The total cost was $5.05 write and solve an equation to determine
    13·2 answers
  • Please help! Image Below
    10·1 answer
  • Kaylie had $1250 in her savings account. She withdrew $82 each month for 8 months in order to pay for a summer vacation. How muc
    12·2 answers
  • Helppp...........................math ​
    12·1 answer
  • Find measure FGH circles unit
    7·1 answer
  • Find the output, y, when the input, x, is 3.<br><br> Y=-5x+13
    6·2 answers
  • If 3:y=18:24 find y.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!