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
Tatiana [17]
3 years ago
12

Need help step by step plz

Mathematics
1 answer:
yulyashka [42]3 years ago
8 0

I'm assuming D is the center of the circle.  See the new figure.

Angle BDC = 106 degrees, that's the definition of arc measure.

Triangle BDC is isosceles (two radii make congruent sides) so the two remaining angles in BDC are equal, DBC=DCB=(180-106)/2=37 degrees.

Angle BAC = 106/2 = 53 degrees, subtending the arc of 106 degrees.

Angle CAD = 53/2 = 26.5 degrees because AD is a bisector, the shared hypotenuse of congruent right triangles AED and AFD.

AFD is also congruent to CFD, so angle DCA is also 26.5 degrees

Angle ACB is the sum of DCA and DCB, ACB = 26.5 + 37 = 63.5 degrees

The angle subtends the arc we seek, whose measure must be double:

10x - 23 = 2(63.5) = 127 degrees

10x = 150

x = 15

Answer: 15

You might be interested in
My son has the following missing number pattern to solve.
melisa1 [442]
The only complete pattern is the middle one
we see that 38-29=9
so the middle number minus the first number equals the third number
for the last row
21-1=20  so you have 1  21   20
for the first one

17- ?=37
54-17=37      54  17  37 
6 0
3 years ago
Read 2 more answers
125. Albert surveyed a class of 25 students on sports. 5 kids love baseball. 7 kids love basketball. 10 kids
MAXImum [283]

Answer:

3 students

Step-by-step explanation:

since the<em> </em>total number of students is 25,when you add those that like baseball, basketball and football the total number must be 25 but in this case it's 22 meaning 2 student liked neither.

7+5+10+x=25

x=25-22

=3

I hope this helps

4 0
3 years ago
I NEED THIS TO BE CORRECT, I WILL GIVE ANYTHING!!
Andrew [12]

Answer:

a) 105 degrees

b) 75

c) 105

Step-by-step explanation:

a) 180-75 is 105 (supplementary angles)

b) same angle as kings ave and 4th street. (supplementary angles)

c) 180-75 is 105 (also vertical angle rule)

3 0
3 years ago
Explain why the oppisite of a positive number will always be a negitive number​
Aloiza [94]

Answer:

because a positive is over zero and a negative is below zero so from that you can tell that the opposite of any positive will be a negative.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Help me please I’m behind
BaLLatris [955]

Answer:

1. D 2.A 3.D 4.D

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • 2.434 to 3 significant figures
    15·1 answer
  • If bob earns 35,000 a month how much does he earn in 2 years and 75 weeks
    13·2 answers
  • What is 7/8 in decimal form
    14·1 answer
  • A student performed the following steps to find the solution to the equation x^2+14x+40=0 where did the student go wrong
    15·2 answers
  • A marathon is 26.2 miles long. Sue wants to run a marathon in 4 hours what is the number of miles she must run each hour.
    14·2 answers
  • if three cubes of sides 3cm each are joined end to end, then find the length, breadth and height of the resultant cuboid​
    8·1 answer
  • Help help help help <br> Number 1 and 2 in the next q
    10·1 answer
  • Pls help me If your good at math I’ll give brainliest
    13·1 answer
  • Solve for x, Round to the nearest thenth. x,9.2,16.5
    6·1 answer
  • Jillian exercises 5 times a week. She runs 3 miles each morning and bikes in the evening. If she
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!