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
jasenka [17]
1 year ago
10

Can you please help me out with a question

Mathematics
1 answer:
kozerog [31]1 year ago
8 0

As you can see in the given figure, there are two intersecting chords inside the circle.

Recall that the "Intersecting Chords Theorem" is given by

AE\cdot EC=BE\cdot DE

For the given case, we have

AE = 7

BE = 6

EC = 9

Let us substitute these values into the above equation and solve for DE

\begin{gathered} AE\cdot EC=BE\cdot DE \\ 7\cdot9=6\cdot DE \\ 63=6\cdot DE \\ \frac{63}{6}=DE \\ 10.5=DE \\ DE=10.5 \end{gathered}

Therefore, the length of DE is 10.5 units.

You might be interested in
What is the function of delta sign in maths
gladu [14]
The uppercase delta Δ means "change in" so for example: Δx = difference between two x values.

The lowercase delta which Brainly does not have, looks like a squiggly lowercase d. It generally means "very small change in".
7 0
2 years ago
Bill says that he can add 23 and 40 without regrouping. Is bill correct? How do you know?
creativ13 [48]
He can because you can add it mentally. You can just have 23 in your head and count by adding 10 "4" times. 

Hope this helped☺☺
7 0
3 years ago
Read 2 more answers
A board game has a spinner divided into sections of equal size. Each section is labeled with a number between 1 and 5. What is a
timurjin [86]

Answer:

From the choices given, the most reasonable estimate is 25.

Step-by-step explanation:

5 sections on the spinner means there is a 1/5 chance of landing on any of the sections each spin.

This means landing on a section labeled 5 should happen 1/5(150) = 30 times.  The closest option to this is 25.

6 0
3 years ago
What is the solution to this inequality?
kirza4 [7]

Answer:

I think its B. ?????

Step-by-step explanation:

7 0
2 years ago
{(4x+2y=6),(-2x+2y=18):} Solve by using the elimination method
Degger [83]

Answer:

\displaystyle [-2, 7]

Step-by-step explanation:

You want to eradicate one pair of variables so they are set to zero. It does not matter which pair is selected:

\displaystyle \left \{ {{4x + 2y = 6} \atop {-2x + 2y = 18}} \right.

{½[4x + 2y = 6]

{−2x + 2y = 18

>> \displaystyle \left \{ {{2x + y = 3} \atop {-2x + 2y = 18}} \right. \\ \\ \frac{3y}{3} = \frac{21}{3} \\ \\ \\ y = 7

Plug this back into the system to get the x-value of \displaystyle -2.

I am joyous to assist you at any time.

4 0
2 years ago
Other questions:
  • According to the Harris Poll, 70 % of dog owners buy their dogs holiday presents. Suppose you select a random sample of 25 dog o
    13·1 answer
  • Help I need to get this done for school but I just can’t figure out how to do those last two problems
    10·1 answer
  • I need help with #6 please help and I need the work
    7·2 answers
  • Pleaseeeeeee helppppp
    6·2 answers
  • What is 3y-5=6-4x in standard form
    9·1 answer
  • 102 is what percent more than 50
    9·1 answer
  • What’s the value of 7 In 7(n)=50+4n
    5·1 answer
  • Enjoy your day!!!!!!!!!
    8·1 answer
  • A rectangular playground is 18.2 meters by 12.75 meters.
    6·1 answer
  • A line is parallel to y = 5x + 3 and
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!