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]
2 years ago
12

Need help step by step plz

Mathematics
1 answer:
yulyashka [42]2 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
Tony wants to purchase a baseball glove for $14.96, a baseball bat for $19.87, and a baseball for $5.37. He figured out that he
Vanyuwa [196]
Reasonable because the three items altogether cost about $40
8 0
3 years ago
Pls can any of you help with this.​
Lorico [155]
X=6 and Y= 6 square root 2
3 0
2 years ago
F(x)=2x+3/4x+5<br>find f(-9)<br>​
mylen [45]

\implies {\blue {\boxed {\boxed {\purple {\sf { f(-9)= 0.48}}}}}}

\large\mathfrak{{\pmb{\underline{\orange{Step-by-step\:explanation}}{\orange{:}}}}}

f(x) =  \frac{2x + 3}{4x + 5} \\

For f(-9), put "-9" for every value of "x".

↬f( - 9) =  \frac{2( - 9) + 3}{4( - 9) + 5}\\

↬ f(-9) =  \frac{ - 18 + 3}{ - 36 + 5} \\

↬ f(-9) =  \frac{ - 15}{ - 31}\\

↬ f(-9)=  \frac{15}{31}\\

↬f(-9)=  0.48\\

\bold{ \green{ \star{ \red{Mystique35}}}}⋆

6 0
3 years ago
Read 2 more answers
PLEASE help me ; - ; (USAtest prep)
nadezda [96]
What do u want help with and take it easy btw
4 0
2 years ago
The table below shows the linear relationship between the number of people at a picnic and the total cost of the picnic.
REY [17]
Wheres the table at bro post a pic
3 0
2 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP!! and, thanks so much @sparkssparkles001, @justicehall2002, @tiffanieonderdock123, @graywoods for answering the past
    7·1 answer
  • I need him with this picture please its important!!!!!!!! 14 points
    8·1 answer
  • Gasoline prices for the first six months of 2004 are shown in the table below. Using a logarithmic model, what is the best
    13·1 answer
  • A pair of sunglasses on sale for 30% off original price.if the original Price is $18.00 what is the sale price?
    7·2 answers
  • Which statement about rational numbers is true?
    10·1 answer
  • HELP!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • Please answer the picture
    9·2 answers
  • Solve for x.<br> 5/6x = 15<br> Enter your answer in the box.<br> X=
    8·1 answer
  • What is 10 to the fourth power?
    12·2 answers
  • The point P is the reflection of the point (-7, 5) in the line 5x - 3y = 18.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!