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
Ludmilka [50]
2 years ago
6

Please help!! "Quadrilateral ABCD is inscribed in the circle below. Find the measure of all four angles."~!!!!!

Mathematics
1 answer:
expeople1 [14]2 years ago
8 0
For a cyclic quadrilateral
The opposite angles are supplementary (meaning they sum up to 180 °)
I.e (x +20) ° + 3x ° =180 °
20 + 4x = 180
4x=180 - 20
4x = 160
Divide through by 4
x = 40 °

Angle at point A
(2x + 38) = (2(40) + 38) = 118 °

Angle at point B
3x = 3(40) = 120 °

Angle at point D
x + 20 = 40 + 20 = 60 °

Angle at point C
The total angle in a quadrilateral is 360 °
I.e 118 + 120 + 298 +
You might be interested in
Tess has 42 words of an essay typed and is typing about 1.3 words per second. Margo 122 words of an essay typed and is erasing a
scoray [572]

Answer:

  32 seconds

Step-by-step explanation:

For some number of seconds (s), Tess's essay length (t) will be ...

  t = 42 +1.3s

and Margo's essay length (m) will be ...

  m = 122 -1.2s

We will have t > m when ...

  t > m

  42 +1.3s > 122 -1.2s

  2.5s > 80 . . . . . . . . add 1.2s-42

  s > 32 . . . . . . . . . . . divide by 2.5

After 32 seconds, Tess's essay will exceed Margo's in length.

 

6 0
3 years ago
60% of all bald eagles survived their first flight. If 25 randomly selected bald eagles are observed, what is the probability th
lesantik [10]

Answer:

100%\%

8 0
3 years ago
Mini Sweets bake shop is running a special on cupcakes. For every 10 cupcakes purchased, 3 free cupcakes are added to the order.
Ierofanga [76]
She would get 9 free cupcakes
8 0
3 years ago
7- a. What is the radius of the circle with center (3,10) that passes through (12,12)?
loris [4]

Answer: a. Radius of circle = \sqrt{85}

b. The equation of this circle : (x-3)^2+(y-10)^2=85

Step-by-step explanation:

Given : Center of the circle = (3,10)

Circle is passing through (12,12).

a. To find the radius we apply distance formula (∵ Radius is the distance from center to any point ion the circle.)

Radius of circle = \sqrt{(12-3)^2+(12-10)^2}

Radius of circle = \sqrt{(9)^2+(2)^2}=\sqrt{81+4}=\sqrt{85}

i.e. Radius of circle = \sqrt{85}

b. Equation of a circle = (x-h)^2+(y-k)^2=r^2 , where (h,k)=Center and r=radius of the circle.

Put the values of (h,k)= (3,10) and r= \sqrt{85} , we get

(x-3)^2+(y-10)^2=(\sqrt{85})^2

(x-3)^2+(y-10)^2=85

∴  The equation of this circle :(x-3)^2+(y-10)^2=85

6 0
3 years ago
14 over 70 in simplest form
Luda [366]
14/70 in it's simplest form is 1/5

hope this helps :)
5 0
3 years ago
Read 2 more answers
Other questions:
  • Please answer correctly !!!!! Will mark brainliest !!!!!!!!!!
    10·1 answer
  • A rectangle is inscribed under the curve y = 24 – x2 with a portion of the x-axis as its base. What is the area, in square units
    5·1 answer
  • Select the correct answer from the drop-down menu. f(x) = |x| and g(x) = |x| + 3 The transformation applied to get the graph of
    8·2 answers
  • Arc JK is congruent arc LM. What is the length of chord LM? A. 2 B. 15 C. 16 D. 30
    6·1 answer
  • Paula walked 4.5 miles. How many kilometers did Paula walk? I mile = 1.61 kilometers
    14·1 answer
  • What is the density of a brownie the shape of a cube weighing 15 grams measuring 5 cm on a side?
    13·1 answer
  • What is the difference between a prime number and a complex number?
    14·2 answers
  • HEADS UP there is a bot going around saying to put in a link to get your answers dont do it i didnt click it but it could be a v
    14·1 answer
  • How many milliliters of chocolate milk are in the container shown? Enter your answer in the box.
    5·1 answer
  • The product of two integers is eighty,their quotient is five.Write both integers in numerical order and separated by a comma,no
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!