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
Ber [7]
4 years ago
12

Need help pls on circle geometry

Mathematics
1 answer:
Katyanochek1 [597]4 years ago
3 0

Answer:

25

Step-by-step explanation:

AB is a tangent to the circle hence the angle ABO is a right angle !!! With that knowledge we can construct a right-angled triangle with sides AB ,BO and OA .

Applying the Pythagorean theorem we get that OA is the hypotenuse and thus

oa =    \sqrt{ab {}^{2} + ob {}^{2}  }

You might be interested in
Suppose that $a$ is a positive integer for which the least common multiple of $a+1$ and $a-5$ is $10508$. What is $a^2 - 4a + 1$
Nana76 [90]

Answer:

21022.

Step-by-step explanation:

Find the prime factors of 10508:

2 ) 10508

2 ) 5254

37 ) 2627

       71.

50208 = 2*2*37*71.

Now there is no integer value for a that would fit  (a+ 1)(a - 5) = 10508 .

But we could try multiplying the LCM by 2:-

= 21016  = 2*2*2*37*71.

= 2*2*37 multiplied by 2 * 71

= 148 * 142.

That looks promising!!

a - 5 = 142 and

a + 1 = 148

This gives  2a - 4 = 290

2a = 294

a = 147.

So substituting a = 147 into a^2 - 4a + 1 we get:

= 21022.

4 0
4 years ago
Find the value of x geometry
choli [55]

Answer:

x = 22

Step-by-step explanation:

Since the the 2 bisectors are equal, that means the chords are also equal. Since bisector splits into 2 equal parts, 11 + 11 equals 22

6 0
3 years ago
Express the ratio 5 : 20 as a percentage.
Fantom [35]
5 : 20 as a percentage equals 5/20, which is 0.25 or 25%
8 0
3 years ago
1 = ?/5 what is the answer
guajiro [1.7K]

1 = ?/5.

Multiply each side by 5.

5 = ?

7 0
3 years ago
The number 20 is no less than the difference of 4 times a number c and 8.
sammy [17]

Answer:

20 >= 4*c - 8

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • y = An isosceles triangle A B C with horizontal base A B and vertex C is below the base. Side A C and C B are labeled with singl
    12·1 answer
  • Write a division problem that has a 3 digit dividend and a divisor between 10 and 20
    12·1 answer
  • Clarence borrows $9,000 for 4 years at an APR of 6.5%. What are his monthly payments ?
    6·1 answer
  • Find the fourth term the geometric sequence whose 2nd term is 8 and whose common ratio is 4
    11·1 answer
  • There are approximately 113 million TVs in the United States. Each uses, on average, 76 W of power and is turned on for 6.3 hour
    9·2 answers
  • Find the volume of this cylinder please. ASAP
    13·2 answers
  • Chris has a job selling newspapers every morning. He received a base pay of $7.45 a day and also gets 15 cents for every paper h
    9·1 answer
  • Please answer fast, it’s due in a hour.
    12·2 answers
  • A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 3 large boxes and 2 small boxes has a t
    10·1 answer
  • Rewrite 32/35 and 9/10
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!