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
Aloiza [94]
3 years ago
13

Please help!!!!CE is tangent to this circle, CD is a radius and ECB=48 what is BAC​

Mathematics
1 answer:
den301095 [7]3 years ago
4 0

Answer:

48degrees

Step-by-step explanation:

From the circle geometry shown, traingle BDC is an isosceles triangle which shows means that their base angels are the same. Hence;

<B = <C

<CBD + <BCD + <D = 180

<BCD + <BCD + <D =180

2<BCD + <BDC = 180

Get <BCD;

<BCD+ <ECB = 90

<BCD + 48 = 90

<BCD = 90 - 48

<BCD = 42degrees

Get <BDC

2<BCD + <BDC = 180

2(42)+ <BDC = 180

84 + <BDC = 180

<BDC = 180 - 84

<BDC = 96

Since angle at the centre is twice that at the circumference, then;

<BAC = 1/2(<BDC )

<BAC = 96/2

<BAC = 48degrees

You might be interested in
Which sequence of transformations could be used to map triangle MNO onto M"N"O"? T(–2, 4) ry-axis ry-axisT(–2, 4) T(2, –4) T(2,
katrin [286]

Answer:

(A)T(–2, 4) ry-axis

Step-by-step explanation:

The graph showing triangles MNO and M"N"O" is attached below.

From the graph, the coordinates are:

  • M(5,-4),N(3,-2) and O(1,-3)
  • M"(-3,0), N"(-1,2) and O"(1,1)

When we <u>transform triangle MNO by (-2,4),</u> we obtain:

M'(3,0), N'(1,2) and O'(-1,1)

Next, we reflect M'N'O' the y-axis.

Note: When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is transformed into its opposite.

Therefore:

  • Reflection of  M'N'O' accross the y-axis gives: M"(-3,0), N"(-1,2) and O"(1,1).

Therefore, the sequence of transformations could be used to map triangle MNO onto M"N"O" is T(–2, 4) ry-axis.

The correct option is A.

8 0
2 years ago
Given the following sets, find the set (AUB)’ n C.
Lunna [17]

Step-by-step explanation:

(AUB)={1,2,3,4,6 }

(AUB)nC={1,2,3,4 }

7 0
3 years ago
Five sixths of the sum of three consecutive numbers is -237.5<br><br> write an equation and solve
igor_vitrenko [27]
Five sos tha of sum of three. = -237.5
5 0
3 years ago
What is the mean of the sum of positive single digit integers
Rus_ich [418]

I am pretty sure it depends on what your numbers are
6 0
3 years ago
Find the value x and write the property used here.
Serga [27]

Step-by-step explanation:

Soln,

Here,

45°+65°+y(let)=180°[ being a triangle]

or,110°+y=180°

or,y=180°-110°

so,y=70°

Now,

x=?

so,

x+y=180°[being straight angle]

or,x+70°=180°

or,x=180°-70°

x=110°

THEREFORE,x=110°

solved!

6 0
2 years ago
Read 2 more answers
Other questions:
  • Find the median of the data in the dot plot below.
    7·2 answers
  • What are the absolute value answers to 5n+24=|8-3n|?
    13·2 answers
  • HELP!!! 20 POINT REWARD!!!
    10·1 answer
  • Help me answer this question
    7·1 answer
  • HELP PLEASE! Thank youuuuu
    6·1 answer
  • A city council consists of eight Democrats and eight Republicans. If a committee of six people is selected, find the probability
    11·1 answer
  • A cylinder has a base diameter of 6 feet and a height of 2 feet. What is its volume
    9·1 answer
  • Find the average rate of change over the given interval.
    15·1 answer
  • Use the figure to find the measures of the numbered angles.<br><br> ∠1 = <br> ∘<br> ∠2 = <br> ∘
    5·2 answers
  • What is sin(sec^-1 (u))
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!