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
monitta
3 years ago
9

Please help quickly! What is the measure of Arc CB. How did you determine this?

Mathematics
1 answer:
S_A_V [24]3 years ago
4 0

Answer:

As shown in picture,

Angle CDF = Angle BDE = 54 deg (pair of opposite angles)

Angle CDB = 180 - CDF = 180 - 54 = 126 deg (BF is a diameter).

=> Arc CB = Angle CDB = 126 deg (property of angle on circle)

Hope this helps!

:)

You might be interested in
Find the center of a circle with the equation: x2 y2−32x−60y 1122=0 x 2 y 2 − 32 x − 60 y 1122 = 0
mixas84 [53]

The equation of a circle exists:

$(x-h)^2 + (y-k)^2 = r^2, where (h, k) be the center.

The center of the circle exists at (16, 30).

<h3>What is the equation of a circle?</h3>

Let, the equation of a circle exists:

$(x-h)^2 + (y-k)^2 = r^2, where (h, k) be the center.

We rewrite the equation and set them equal :

$(x-h)^2 + (y-k)^2 - r^2 = x^2+y^2- 32x - 60y +1122=0

$x^2 - 2hx + h^2 + y^2 - 2ky + k^2 - r^2 = x^2 + y^2 - 32x - 60y +1122 = 0

We solve for each coefficient meaning if the term on the LHS contains an x then its coefficient exists exactly as the one on the RHS containing the x or y.

-2hx = -32x

h = -32/-2

⇒ h = 16.

-2ky = -60y

k = -60/-2

⇒ k = 30.

The center of the circle exists at (16, 30).

To learn more about center of the circle refer to:

brainly.com/question/10633821

#SPJ4

7 0
2 years ago
The sum of the roots of 3x 2 + 11x - 4 = 0 is<br><br> -11/3<br> -4/3<br> 11/3<br> 4/3
givi [52]

Answer:

The correct option is 1.

Step-by-step explanation:

If a quadratic equation is defined as

ax^2+bx+c=0             .... (1)

Then the sum of the roots is -b/a and the product of roots is c/a.

The given equation is

3x^2+11x-4=0          ... (2)

From (1) and (2) we get a=3, b=11 and c=-4.

The sum of roots is

\frac{-b}{a}=-\frac{11}{3}

The sum of roots is -\frac{11}{3}.

Therefore the correct option is 1.

5 0
4 years ago
Solve equation 13=x/7+5
yuradex [85]

Answer:

56

Step-by-step explanation:

Isolate the variable (x). Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, subtract 5 from both sides:

13 (-5) = (x/7) + 5 (-5)

13 - 5 = x/7

8 = x/7

Isolate the variable x. Multiply 7 to both sides:

8(7) = (x/7)(7)

8(7) = x

x = 8 * 7

x = 56

56 is your answer for x.

~

3 0
3 years ago
Read 2 more answers
Which inequality is represented by the graph? ​
joja [24]

Answer:

graph?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If f(x)-79*), what is f(3)?
Anika [276]

Answer:

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

you take the positive value for it

f(-3) = |2×(-3)+1|+5 ➡ |-6+1| + 5 ➡ |-5|+5 = 5+5

6 0
3 years ago
Other questions:
  • Hey can I have help?
    5·2 answers
  • Add.
    7·2 answers
  • An airplane started at 0 feet. It rose 21,000 feet at takeoff. It then descended 4,329 feet because of clouds. An oncoming plane
    12·1 answer
  • The low temperature for 5 days was -5, -7, -2, 2, -3 degrees. What was the average low temperature for those days?
    6·1 answer
  • I need help on #59, #60
    8·2 answers
  • Is 3x+4y=8 parallel or perpendicular
    10·1 answer
  • Using a Simple Radom Sample of 500 rental property owners in Washington State, a 95% confidence interval estimate of the proport
    13·1 answer
  • Which is not proportional to 3/7?<br> 6/14<br> 12/28<br> 0.3/0.7<br> 9/28
    7·1 answer
  • Find the value of X
    6·1 answer
  • 100 points!!!! To whoever helps me with this!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!