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
nekit [7.7K]
3 years ago
14

A quadilateral ABCD is drawn to circumcribe a circle . prove that AB+CD=AD+BC

Mathematics
2 answers:
gizmo_the_mogwai [7]3 years ago
6 0

Answer:

detail in steps

Step-by-step explanation:

as illustrated

AB = AP + BP

CD = CR + DR

AD = AS + DS

BC = BQ + CQ

while AP = AS   BP = BQ    CQ = CR    DR = DS

AB + CD = AP + BP + CR + DR

AD+BC =  AS + DS + BQ + CQ

∴ AB+CD=AD+BC

lora16 [44]3 years ago
3 0

Answer:

Helllllp

Step-by-step explanation:

You might be interested in
Write this ratio in simplest form: 72:9​
elena55 [62]

Answer:

12

Step-by-step explanation:12x9

3 0
2 years ago
Read 2 more answers
Pls help thank you. Find the value of the expression use estimation to check your answer ​
RoseWind [281]

Answer:

2.) 2703

4.) 9

Step-by-step explanation:

2.)

5327 - 2624 = ?

We subtract from left to right to get;

(7 - 4 = 3) then (2 - 2 = 0) then carrying  1 from 5, (13 - 6 = 7) and (4 - 2 = 2)

So writing the answer;

2 then 7 then 0 then 3

i.e Answer = 2703

4.)

648 ÷ 72 = ?

72 × 10 = 720

So we must multiply 72 by a number less than 10 since 720 > 648

We should look for a number such that 2 in 72 times the number should give an answer with 8 in the end.

Such a number can be 9;

Manually multiplying 72 and 9 we get 648 and we are right!

8 0
3 years ago
8 people eat at Charlie Brown's for Thanksgiving. How many different seating
never [62]

Answer: 40,320

Step-by-step explanation: Let's say that there is person A,B,C,D,E,F,G,H. and 8 chairs. For the first chair, 8 different people could potentially sit in it, making 8 different possibilities. No matter who sits there, the logic follows the next table. However, since one person is sitting in the first chair, there are 7 different possibilities about who would be sitting in the second chair. If you multiply the two together, there are 56 different possibilities just for the first and second chair. For the third chair, there are 6 different possibilities about whom could sit. Multiply 56*6 and you get 336 possibilities. Keep multiplying out and you get a grand total of 40,320 different arrangements!

4 0
3 years ago
Read 2 more answers
Find an explicit rule for the nth term of a geometric sequence where the second and fifth terms are -36 and 2304, respectively.
suter [353]
When we find a geometric sequence using the first and second terms, what we do is divide the second by the first to find a "common ratio," the number you multiply by to get to the next term.

In this case, we only have the second and fifth terms. From the second to the fifth term, we've multiplied by that common ratio three times.
What we can do is divide the fifth by the second and then take the <em>cube root</em> to find our common ratio.

2304\div-36=-64\\\sqrt[3]-64=\boxed{-4}

Now we know we're multiplying by -4 each time, let's find the first term.

The opposite of multiplying by -4 would be dividing by -4. We work back from our second term -36 to find that the first term would be 9.

For each sucessive term, we then multiply by -4.

Our equation is a_n=9\times-4^{(n-1)}
6 0
2 years ago
Divide 31.50 / 2.50 step by step. Write is out on paper if you can. :D
AveGali [126]

Answer: 12.6

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • Graph the functions and approximate an x-value in which the quadratic function exceeds the exponential function. y = 4x y = 7x2
    10·1 answer
  • Please help I don't understand this ?
    14·1 answer
  • Can anyone help with maths? Plzzz
    5·1 answer
  • I don't know how to answer number 9 and 10. Can someone please help me?
    8·1 answer
  • Draw a double bar graph for the given information.
    8·1 answer
  • What slope would make the lines<br> parallel?
    12·2 answers
  • If Colorado spring, Colorado, has 1.2 times as many days of sunshine as Boston, Massachusetts, how many days of sunshine does ea
    11·1 answer
  • Write 4670 000 in standard form.
    8·2 answers
  • How many 2/3's are in 4/5
    14·2 answers
  • PLEASE HELP! PLEASE!!!!!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!