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
Anon25 [30]
3 years ago
15

In the circle below, chord AB passes through the center of circle 0. If the radius OC is perpendicular to chord AB and has lengt

h of 7 centimeters,
what is the length of chord BC, to the nearest tenth of a centimeter?
A. 5.3
B. 7.0
C. 9.9
D. 12.1
E. 14.0

Mathematics
1 answer:
Airida [17]3 years ago
7 0

Answer:

Option (C)

Step-by-step explanation:

In the given circle, AB is a chord passing through the center O.

Therefore,chord AB is a diameter of the circle and OC is the radius.

AO = OB = OC

OC⊥AB, and length of OC = 7 cm

By applying Pythagoras theorem in right ΔBOC,

BC² = OC² + OB²

BC = \sqrt{OC^{2}+OB^{2}}

     = \sqrt{7^2+7^2}

     = 7\sqrt{2}

     ≈ 9.9 units

Therefore, Option (C) will be the answer.  

You might be interested in
Helllp me plzzzzzzzz i will mark brainlist
katen-ka-za [31]

Answer:

126

Step-by-step explanation:

set up a proportion, 59/140= x/300. Cross multiply: 140x= 17700. Then divide both sides by 140. the answer is 126.42857... ore rounded, 126.

7 0
3 years ago
Read 2 more answers
C(x)=2x^2-400x+31,000
NemiM [27]
This is a quadratic so if you want to find the solutions, use the quadratic formula. Google quadratic formula and videos on it and how to use it will pop up.
7 0
3 years ago
Brainly admin please don't delete this i actually forgot what is 1x0 1x2 and 0x2
Serga [27]

first one is 0 second one is 2 and then the last one is 0

7 0
3 years ago
Read 2 more answers
Given:-x-4=9 prove:c=-13
serious [3.7K]

Answer:

a. addition property of Equality

3 0
3 years ago
Find the missing side length.
Anastaziya [24]

Answer:

11 cm

Step-by-step explanation:

16-5 = 11

7 0
3 years ago
Read 2 more answers
Other questions:
  • Chardai reads 25% of a book each night that has 280 pages. How many pages will she read
    10·1 answer
  • 63-47 using mental math​
    8·2 answers
  • Which of these equations have no solution? Check all that apply.
    12·2 answers
  • Write an inequality to describe all the points on the coordinate plane above y=-4?
    12·1 answer
  • A rock climber is climbing up a 450 feet high
    10·1 answer
  • Please help me I am on a test.
    13·1 answer
  • Factor 6y + 8y 6y² +8y?​
    12·1 answer
  • Plz help I need this by tonight
    7·2 answers
  • Need help with this
    14·1 answer
  • Find the perimeter of the triangle whose vertices are (−7,−1), (5,−1), and (5,4). Write the exact answer. Do not round.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!