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
jeyben [28]
3 years ago
14

What is BC if AC= 12, DC= 4 and EC=9

Mathematics
1 answer:
nikitadnepr [17]3 years ago
5 0
The complete question in the attached figure

we know that
B<span>ased on the secant theorem
AC*BC=EC*DC
so
BC=[EC*DC]/AC
AC=12
DC=4
EC=9
</span>BC=[9*4]/12------> BC=36/12------> BC=3
<span>
the answer is
BC=3</span>

You might be interested in
The formula for the perimeter, P, of a rectangle is P = 2L + 2w, where L is the length and W is th width sovle the formula for t
vichka [17]

                                 P  =  2L + 2w

Subtract  2L
from each side:          P - 2L  =  2w

Divide each side
by  2 :                        (P - 2L) / 2  =  w

You could also write it as      (P/2  -  L)  =  w
Both answers are the same.

4 0
3 years ago
Consider the following 8 numbers, where one labelled
cupoosta [38]

Answer:

x = 73

x = -35

Step-by-step explanation:

Here are the 8 numbers:

34, 31, 15, x, 17, 4, 20, 25

Here are the 8 numbers in ascending order with x as the greatest number:

4, 15, 17, 20, 25, 31, 34, x

x - 4 = 69

x = 73

Here are the 8 numbers in ascending order with x as the smallest number:

x, 4, 15, 17, 20, 25, 31, 34

34 - x = 69

-x = 69 - 34

-x = -35

x = -35

Answer:

x = 73

x = -35

8 0
1 year ago
I really NEED help!
Gala2k [10]

Answer:

This is long ill write up a short summary of the answer in 2 mins

Step-by-step explanation:

6 0
3 years ago
Find the arc length of the semicircle.
S_A_V [24]

Answer:

9π, or 28.26

Step-by-step explanation:

The Arc of the semicircle is the circumference of half a circle.

The radius of the semicircle is 9, and the circumference of a circle is 2πr, so it is 2π9 = 18π. since this is a semicircle, it is half of that, so 9π, or 28.26, since π is 3.14 here

5 0
3 years ago
Read 2 more answers
Rejecting the null hypothesis means that the sample outcome is very unlikely to have occurred if h0 is true
pantera1 [17]
Are you asking a question? If you're asking if the statement you made is true, yes that is correct.

5 0
3 years ago
Other questions:
  • How would you do this??
    9·1 answer
  • On a class trip to the museum, 5/8 of the students saw the dinosaurs and 2/8 of the students saw the jewelry collection. What fr
    7·1 answer
  • Evaluate each expression if x=-2,y=-3and z=5. 2x+3y+z?
    9·1 answer
  • How to now your timetables by your hands
    14·2 answers
  • What is 10:40 plus 7:15 in time?​
    8·2 answers
  • 4. You have $40 in your wallet, but you do not want to spend all of it. You want to have at least some money left. You find a sh
    10·2 answers
  • What is the value of x in the equation 3(2x + 8) = 0? Group of answer choices −8 −4 4 8 please hurry!
    6·1 answer
  • It costs Guido $0.20 per minute to forward voicemail messages as texts to his cell phone. He already spent $4 in forwarding mess
    10·1 answer
  • Yo someone help i'm lost
    8·1 answer
  • What is the latter of A- B=
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!