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
myrzilka [38]
3 years ago
11

What is CD? Show steps please!

Mathematics
1 answer:
Romashka [77]3 years ago
4 0

Answer:

\large\boxed{CD=2\sqrt6\ cm}

Step-by-step explanation:

ΔDAC and ΔDCB are similar (AA). Therefore the sides are in proportion:

\dfrac{CD}{DA}=\dfrac{DB}{CD}

We have DA = 3cm and DB = 8 cm. Substitute:

\dfrac{CD}{3}=\dfrac{8}{CD}         <em>cross multiply</em>

CD^2=(3)(8)

CD^2=24\to CD=\sqrt{24}

CD=\sqrt{4\cdot6}\\\\CD=\sqrt4\cdot\sqrt6\\\\CD=2\sqrt6\ cm

You might be interested in
Mia tossed a penny, a nickel, and a dime. Which is a complete tree diagram for all possible outcomes, where H represents heads a
Novay_Z [31]

Mia tossed a penny,a nickel and a dime all possible outcomes of H is the answer C.

Step-by-step explanation:

  • The two possible outcomes for penny,nickel and dime is H & T.
  • H is for head T is for tail.
  • Let A {HHH,HHT,HTH,HTT,THH,THT,TTH,TTT}
  • Tossing a fair coin will give the above result.
  • S is the called the n number of outcomes that are available for a set.
  • Total outcome of Sample space 8.
  • The three diagram is like a game theory it exploits different outcome.
8 0
3 years ago
Sin 2x=
loris [4]

Answer:

A,C

Step-by-step explanation:

sin 2x=sin (x+x)=sinx cos x+cos x sin x=2 sin x cos x

or =2 cos x sin x

[sinx cox=cos x sin x ]

6 0
3 years ago
What is the gcf for 84 and 54
solmaris [256]
Your answer for the greatest common factor is 6
3 0
3 years ago
JL = 28,<br> KL= 5x + 6, and<br> JK = 3x + 6,
Alexeev081 [22]

Answer:

KL = 16

Step-by-step explanation:

For this problem, JL is the sum of KL and JK.  So we can say this:

JK + KL = JL

( 3x + 6 ) + ( 5x + 6 ) = 28

8x + 12 = 28

8x = 16

x = 2

So, now we can find KL:

5x + 6 = ?

5(2) + 6 = ?

10 + 6 = ?

16 = ?

So the length of KL is 16.

Cheers.

7 0
3 years ago
5/12 hour = how many minutes. And 2/3 yard = how many inches
Brums [2.3K]
There are 60 minutes in one hour. So 5/12 of 60 minutes (1 hr) is 25 minutes.
There are 36 inches in one yard. So 2/3 of 36 inches (1 yard) is 24 inches.
Hope this helps. 

3 0
3 years ago
Other questions:
  • In which quadrant is the point (5,-2) located?
    12·1 answer
  • Which is an example of the associative property?
    13·2 answers
  • The points (-10, 0) and (-5, 3) fall on a particular line. What is it’s equation in slope-intercept form?
    6·1 answer
  • You record a temperature of 0.75 °C. Is this a positive or negative temperature?
    15·1 answer
  • Explain why a drop in temperature would lead to adding a negative integer.
    13·1 answer
  • 36=u/5+13 <br><br> Equations
    14·2 answers
  • Please answer the question I would appreciate the help,please do it ASAP(as soon as possible) because i need the answer now.
    11·1 answer
  • A(7-1), B(6, 4) and C(5, 5) are three
    11·1 answer
  • c) Tyler’s brother earns $12 per hour. The store offers him a raise—a 5% increase per hour. After the raise, how much will Tyler
    12·1 answer
  • What is the volume of the figure?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!