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
sweet [91]
3 years ago
12

Please help me!

Mathematics
1 answer:
marusya05 [52]3 years ago
8 0

Answer:


Step-by-step explanation:

Nice summary problem.

<AEC

  • AEC = 360 - 243.5 = 116.5    
  • The number of degrees in 1 rotation of a circle = 360o. You have accounted for 243.5 degrees. What is left over is the answer.

<EAD and <ECD

Both of these are tangents to a circle. Tangents meet radii at 90 degree angles.

<EAD = <ECD = 90 degrees

<ABC

<ABC is 1/2 the central angle. The Central angle is <AEC

  • < AEC = 116.5
  • <ABC = 1/2 * 116.5
  • <ABC = 58.25

<ADC

There are 2 ways of doing this. You should know both of them.

<em><u>One</u></em>

All quadrilaterals = 360 degrees. You know three of the angles. You should be able to find ADC

  • <ADC + 90 + 90 + 116.5 = 360     Add the four angles together.
  • <ADC + 296.5 = 360                   Combine terms on the left
  • <ADC = 360 - 296.5                    Subtract 238.25 from both sides
  • <ADC = 63.5                                 Answer

<em><u>Method Two</u></em>

<ADC = 1/2 (major Arc - Minor Arc)  This formula is fundamental to circle / tangent properties. The Major arc is the larger of the two parts of the circumference of a circle. The Minor arc is the smaller.

  • <ADC = 1/2(243.5 - 116.5)
  • <ADC = 1/2(127)
  • <ADC = 63.5
You might be interested in
Match the vocabulary word with its definition.
Alexxx [7]
1. Intersection
2. complement
3. Union
4. finite set
5. disjoint sets
6. proper subset
7. subset
7 0
3 years ago
Give the meaning of the equation: 6x + 4y = 2. 3x + 2y = 1
seraphim [82]
6x+4y=2
3x+2y=1

If you multiply by 2 the second statement you'll get the first one which means they belong to the same graph (same line, lines are coincident). The system is consistent and dependent.

The answer is: C. coincident
4 0
3 years ago
Read 2 more answers
Honestly I have a lot of homework to catch up on and not a very good work ethic please help
Mazyrski [523]
A. 4x^2 +5x-4y-3
b. -6x^2+8-2x
5 0
2 years ago
Read 2 more answers
6/7 divided by 12/14
S_A_V [24]

Answer:

1

Step-by-step explanation:

8 0
2 years ago
The table below shows the amount of flour needed for each recipe. Sort the list below from
Setler [38]

Answer:

d,c,b,a

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • A solar powered water pumping system in Desert Range, Utah, has six solar panels, each containing 6 rows modules. Each row has 6
    5·1 answer
  • Is centimeters considered a type of surface area ???
    15·1 answer
  • Which fraction represents this graph?
    7·1 answer
  • 1. To graph any linear equation in the calculator it needs to be in the slope
    10·1 answer
  • Please help! im so confused.
    6·1 answer
  • Easy 80 points!!!! easy 80 points!!!!easy 80 points!!!!easy 80 points!!!!easy 80 points!!!!easy 80 points!!!!easy 80 points!!!!e
    15·3 answers
  • .. Using a calculator, determine which is closest to V 19? <br><br> Answer: b=4.3
    11·1 answer
  • Whats 8-4 I would like to know
    8·2 answers
  • The price of the same type of milk is shown. Which store has the the lowest unit price per ounce
    8·2 answers
  • On average 113,204 aluminum cans are recycled in a minute. Approximately how many cans will be recycled in 16 days? (Express you
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!